vram: implement a MemoryArbiter for VRAM
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parent
2cd172cc73
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5e22d03e15
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package Top;
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import MemoryArbiter::*;
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import Vector::*;
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import DReg::*;
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import DelayLine::*;
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typedef UInt#(2) Addr;
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(* always_ready *)
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interface Top;
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method Action cpu(Bool write, Addr addr);
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method Action debugger(Bool write, Addr addr);
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method Action palette(Addr addr);
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method Action tile1(Addr addr);
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method Action tile2(Addr addr);
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method Action sprite(Addr addr);
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method Bit#(6) grants();
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endinterface
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typedef struct {
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Bool write;
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Addr address;
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} WriteReq deriving (Bits, Eq);
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(* synthesize, clock_prefix="clk_25mhz", reset_prefix="rst_btn" *)
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module mkTop(Top);
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Vector#(2, Reg#(Maybe#(WriteReq))) wrin <- replicateM(mkDReg(tagged Invalid));
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Vector#(4, Reg#(Maybe#(Addr))) rdin <- replicateM(mkDReg(tagged Invalid));
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MemoryArbiter#(Addr) ret <- mkMemoryArbiter();
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Reg#(Vector#(6, Bool)) ok <- mkReg(replicate(False));
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rule req_cpu (wrin[0] matches tagged Valid .req &&& req matches WriteReq{write: .write, address: .addr});
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ret.cpu.request(write, addr);
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endrule
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rule req_debugger (wrin[1] matches tagged Valid .req &&& req matches WriteReq{write: .write, address: .addr});
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ret.debugger.request(write, addr);
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endrule
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rule req_palette (rdin[0] matches tagged Valid .addr);
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ret.palette.request(addr);
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endrule
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rule req_tile1 (rdin[1] matches tagged Valid .addr);
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ret.tile1.request(addr);
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endrule
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rule req_tile2 (rdin[2] matches tagged Valid .addr);
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ret.tile2.request(addr);
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endrule
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rule req_sprite (rdin[3] matches tagged Valid .addr);
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ret.sprite.request(addr);
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endrule
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rule resp;
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Vector#(6, Bool) r = newVector;
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r[0] = ret.cpu.grant();
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r[1] = ret.debugger.grant();
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r[2] = ret.palette.grant();
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r[3] = ret.tile1.grant();
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r[4] = ret.tile2.grant();
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r[5] = ret.sprite.grant();
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ok <= r;
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endrule
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method Action cpu(Bool write, Addr addr);
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wrin[0] <= tagged Valid WriteReq{write: write, address: addr};
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endmethod
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method Action debugger(Bool write, Addr addr);
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wrin[1] <= tagged Valid WriteReq{write: write, address: addr};
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endmethod
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method Action palette(Addr addr);
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rdin[0] <= tagged Valid addr;
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endmethod
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method Action tile1(Addr addr);
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rdin[1] <= tagged Valid addr;
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endmethod
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method Action tile2(Addr addr);
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rdin[2] <= tagged Valid addr;
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endmethod
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method Action sprite(Addr addr);
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rdin[3] <= tagged Valid addr;
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endmethod
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method Bit#(6) grants();
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return pack(ok);
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endmethod
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endmodule
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endpackage
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@ -0,0 +1,598 @@
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BLOCK RESETPATHS;
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BLOCK ASYNCPATHS;
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## ULX3S v2.x.x and v3.0.x
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# The clock "usb" and "gpdi" sheet
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LOCATE COMP "clk_25mhz" SITE "G2";
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IOBUF PORT "clk_25mhz" PULLMODE=NONE IO_TYPE=LVCMOS33;
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FREQUENCY PORT "clk_25mhz" 150 MHZ;
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# JTAG and SPI FLASH voltage 3.3V and options to boot from SPI flash
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# write to FLASH possible any time from JTAG:
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SYSCONFIG CONFIG_IOVOLTAGE=3.3 COMPRESS_CONFIG=ON MCCLK_FREQ=62 SLAVE_SPI_PORT=DISABLE MASTER_SPI_PORT=ENABLE SLAVE_PARALLEL_PORT=DISABLE;
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# write to FLASH possible from user bitstream:
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# SYSCONFIG CONFIG_IOVOLTAGE=3.3 COMPRESS_CONFIG=ON MCCLK_FREQ=62 SLAVE_SPI_PORT=DISABLE MASTER_SPI_PORT=DISABLE SLAVE_PARALLEL_PORT=DISABLE;
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## USBSERIAL FTDI-FPGA serial port "usb" sheet
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LOCATE COMP "ftdi_rxd" SITE "L4"; # FPGA transmits to ftdi
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LOCATE COMP "ftdi_txd" SITE "M1"; # FPGA receives from ftdi
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LOCATE COMP "ftdi_nrts" SITE "M3"; # FPGA receives
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LOCATE COMP "ftdi_ndtr" SITE "N1"; # FPGA receives
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LOCATE COMP "ftdi_txden" SITE "L3"; # FPGA receives
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IOBUF PORT "ftdi_rxd" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "ftdi_txd" PULLMODE=UP IO_TYPE=LVCMOS33;
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IOBUF PORT "ftdi_nrts" PULLMODE=UP IO_TYPE=LVCMOS33;
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IOBUF PORT "ftdi_ndtr" PULLMODE=UP IO_TYPE=LVCMOS33;
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IOBUF PORT "ftdi_txden" PULLMODE=UP IO_TYPE=LVCMOS33;
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## LED indicators "blinkey" and "gpio" sheet
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LOCATE COMP "cpu_write" SITE "H3";
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LOCATE COMP "cpu_addr[0]" SITE "E1";
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LOCATE COMP "cpu_addr[1]" SITE "E2";
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LOCATE COMP "EN_cpu" SITE "D1";
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LOCATE COMP "debugger_write" SITE "D2";
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LOCATE COMP "debugger_addr[0]" SITE "C1";
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LOCATE COMP "debugger_addr[1]" SITE "C2";
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LOCATE COMP "EN_debugger" SITE "B2";
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IOBUF PORT "EN_cpu" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "cpu_write" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "cpu_addr[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "cpu_addr[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "EN_debugger" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "debugger_write" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "debugger_addr[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "debugger_addr[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
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## Pushbuttons "blinkey", "flash", "power", "gpdi" sheet
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LOCATE COMP "btn[0]" SITE "D6"; # BTN_PWRn (inverted logic)
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LOCATE COMP "palette_addr[0]" SITE "R1"; # FIRE1
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LOCATE COMP "palette_addr[1]" SITE "T1"; # FIRE2
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LOCATE COMP "EN_palette" SITE "R18"; # UP W1->R18
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LOCATE COMP "tile1_addr[0]" SITE "V1"; # DOWN
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LOCATE COMP "tile1_addr[1]" SITE "U1"; # LEFT
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LOCATE COMP "EN_tile1" SITE "H16"; # RIGHT Y2->H16
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IOBUF PORT "btn[0]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "palette_addr[0]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "palette_addr[1]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "EN_palette" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "tile1_addr[0]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "tile1_addr[1]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "EN_tile1" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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## DIP switch "blinkey", "gpio" sheet
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LOCATE COMP "tile2_addr[0]" SITE "E8"; # SW1
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LOCATE COMP "tile2_addr[1]" SITE "D8"; # SW2
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LOCATE COMP "EN_tile2" SITE "D7"; # SW3
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LOCATE COMP "reqs[3]" SITE "E7"; # SW4
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IOBUF PORT "sw[0]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sw[1]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sw[2]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sw[3]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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## SPI OLED DISPLAY SSD1331 (Color) or SSD1306 (B/W) "blinkey", "usb" sheet
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LOCATE COMP "oled_clk" SITE "P4";
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LOCATE COMP "oled_mosi" SITE "P3";
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LOCATE COMP "oled_dc" SITE "P1";
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LOCATE COMP "oled_resn" SITE "P2";
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LOCATE COMP "oled_csn" SITE "N2";
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IOBUF PORT "oled_clk" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "oled_mosi" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "oled_dc" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "oled_resn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "oled_csn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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## SPI Flash chip "flash" sheet
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LOCATE COMP "flash_csn" SITE "R2";
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LOCATE COMP "flash_clk" SITE "U3";
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LOCATE COMP "flash_mosi" SITE "W2";
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LOCATE COMP "flash_miso" SITE "V2";
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LOCATE COMP "flash_holdn" SITE "W1";
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LOCATE COMP "flash_wpn" SITE "Y2";
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#LOCATE COMP "flash_csspin" SITE "AJ3";
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#LOCATE COMP "flash_initn" SITE "AG4";
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#LOCATE COMP "flash_done" SITE "AJ4";
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#LOCATE COMP "flash_programn" SITE "AH4";
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#LOCATE COMP "flash_cfg_select[0]" SITE "AM4";
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#LOCATE COMP "flash_cfg_select[1]" SITE "AL4";
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#LOCATE COMP "flash_cfg_select[2]" SITE "AK4";
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IOBUF PORT "flash_csn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "flash_clk" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "flash_mosi" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "flash_miso" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "flash_holdn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "flash_wpn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_csspin" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_initn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_done" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_programn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_cfg_select[0]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_cfg_select[1]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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#IOBUF PORT "flash_cfg_select[2]" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
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## SD card "sdcard", "usb" sheet
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# wifi_gpio2,4,12,13,14,15 are shared with SD card.
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# If any of wifi_gpio2,4,12,13 is used in toplevel, don't use sd_d[].
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# If SD is used in 1-bit SPI mode, wifi_gpio4,12 = sd_d[1,2] are free,
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LOCATE COMP "sd_clk" SITE "H2"; # sd_clk WiFi_GPIO14
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LOCATE COMP "sd_cmd" SITE "J1"; # sd_cmd_di (MOSI) WiFi GPIO15
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LOCATE COMP "sd_d[0]" SITE "J3"; # sd_d0_do (MISO) WiFi GPIO2
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LOCATE COMP "sd_d[1]" SITE "H1"; # sd_d1_irq WiFi GPIO4
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LOCATE COMP "sd_d[2]" SITE "K1"; # sd_d2 WiFi_GPIO12
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LOCATE COMP "sd_d[3]" SITE "K2"; # sd_d3_csn WiFi_GPIO13
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LOCATE COMP "sd_wp" SITE "P5"; # not connected
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LOCATE COMP "sd_cdn" SITE "N5"; # not connected
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IOBUF PORT "sd_clk" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sd_cmd" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sd_d[0]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sd_d[1]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sd_d[2]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4; # WiFi GPIO12 pulldown bootstrapping without 3.3V efuse
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IOBUF PORT "sd_d[3]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sd_wp" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "sd_cdn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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## ADC SPI (MAX11123) "analog", "ram" sheet
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# input lines shared with GP,GN14-17
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LOCATE COMP "adc_csn" SITE "R17";
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LOCATE COMP "adc_mosi" SITE "R16";
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LOCATE COMP "adc_miso" SITE "U16";
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LOCATE COMP "adc_sclk" SITE "P17";
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IOBUF PORT "adc_csn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "adc_mosi" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "adc_miso" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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IOBUF PORT "adc_sclk" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
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## Audio 4-bit DAC "analog", "gpio" sheet
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# output impedance: 75 ohm
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# Stereo 16 ohm earphones, analog audio,
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# SPDIF digital audio and composite video.
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LOCATE COMP "audio_l[3]" SITE "B3"; # JACK TIP (left audio)
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LOCATE COMP "audio_l[2]" SITE "C3";
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LOCATE COMP "audio_l[1]" SITE "D3";
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LOCATE COMP "audio_l[0]" SITE "E4";
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LOCATE COMP "audio_r[3]" SITE "C5"; # JACK RING1 (right audio)
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LOCATE COMP "audio_r[2]" SITE "D5";
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LOCATE COMP "audio_r[1]" SITE "B5";
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LOCATE COMP "audio_r[0]" SITE "A3";
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LOCATE COMP "audio_v[3]" SITE "E5"; # JACK RING2 (video or digital audio)
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LOCATE COMP "audio_v[2]" SITE "F5";
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LOCATE COMP "audio_v[1]" SITE "F2";
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LOCATE COMP "audio_v[0]" SITE "H5";
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IOBUF PORT "audio_l[3]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_l[2]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_l[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_l[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_r[3]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_r[2]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_r[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_r[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_v[3]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_v[2]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_v[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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IOBUF PORT "audio_v[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
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## WiFi ESP-32 "wifi", "usb", "flash" sheet
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# wifi_gpio2,4,12,13,14,15 are shared with SD card.
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# If any of wifi_gpio2,4,12,13 is used in toplevel, don't use sd_d[].
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# If SD is used in 1-bit SPI mode, wifi_gpio4,12 = sd_d[1,2] are free,
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# other pins are shared with GP/GN, and JTAG
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LOCATE COMP "wifi_en" SITE "F1"; # enable/reset WiFi
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LOCATE COMP "wifi_rxd" SITE "K3"; # FPGA transmits to WiFi
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LOCATE COMP "wifi_txd" SITE "K4"; # FPGA receives from WiFi
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LOCATE COMP "wifi_gpio0" SITE "L2";
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LOCATE COMP "wifi_gpio5" SITE "N4"; # WIFI LED
|
||||||
|
LOCATE COMP "wifi_gpio16" SITE "L1"; # Serial1 RX
|
||||||
|
LOCATE COMP "wifi_gpio17" SITE "N3"; # Serial1 TX
|
||||||
|
# LOCATE COMP "prog_done" SITE "Y3"; # not GPIO, always active
|
||||||
|
# wifi lines shared with SD card
|
||||||
|
LOCATE COMP "wifi_gpio2" SITE "J3"; # sd_d0_do (MISO) WiFi GPIO2
|
||||||
|
LOCATE COMP "wifi_gpio4" SITE "H1"; # sd_d1_irq WiFi GPIO4
|
||||||
|
LOCATE COMP "wifi_gpio12" SITE "K1"; # sd_d2 WiFi_GPIO12
|
||||||
|
LOCATE COMP "wifi_gpio13" SITE "K2"; # sd_d3_csn WiFi_GPIO13
|
||||||
|
LOCATE COMP "wifi_gpio14" SITE "H2"; # sd_clk WiFi_GPIO14
|
||||||
|
LOCATE COMP "wifi_gpio15" SITE "J1"; # sd_cmd_di (MOSI) WiFi GPIO15
|
||||||
|
# wifi lines shared with JTAG
|
||||||
|
# LOCATE COMP "wifi_gpio21" SITE "U5"; # JTAG TMS
|
||||||
|
# LOCATE COMP "wifi_gpio18" SITE "T5"; # JTAG TCK
|
||||||
|
# LOCATE COMP "wifi_gpio23" SITE "R5"; # JTAG TDI
|
||||||
|
# LOCATE COMP "wifi_gpio19" SITE "V4"; # JTAG TDO
|
||||||
|
IOBUF PORT "wifi_en" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "wifi_rxd" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "wifi_txd" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "wifi_gpio0" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "wifi_gpio5" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4; # pull down or drive 0 for esp32 programming
|
||||||
|
IOBUF PORT "wifi_gpio16" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "wifi_gpio17" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
# IOBUF PORT "prog_done" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
## PCB antenna 433 MHz (may be also used for FM) "usb" sheet
|
||||||
|
LOCATE COMP "ant_433mhz" SITE "G1";
|
||||||
|
IOBUF PORT "ant_433mhz" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
## Second USB port "US2" going directly into FPGA "usb", "ram" sheet
|
||||||
|
LOCATE COMP "usb_fpga_dp" SITE "E16"; # single ended or differential input only
|
||||||
|
LOCATE COMP "usb_fpga_dn" SITE "F16";
|
||||||
|
IOBUF PORT "usb_fpga_dp" PULLMODE=NONE IO_TYPE=LVCMOS33D DRIVE=16;
|
||||||
|
IOBUF PORT "usb_fpga_dn" PULLMODE=NONE IO_TYPE=LVCMOS33D DRIVE=16;
|
||||||
|
LOCATE COMP "usb_fpga_bd_dp" SITE "D15"; # single-ended bidirectional
|
||||||
|
LOCATE COMP "usb_fpga_bd_dn" SITE "E15";
|
||||||
|
IOBUF PORT "usb_fpga_bd_dp" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "usb_fpga_bd_dn" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "usb_fpga_pu_dp" SITE "B12"; # pull up/down control
|
||||||
|
LOCATE COMP "usb_fpga_pu_dn" SITE "C12";
|
||||||
|
IOBUF PORT "usb_fpga_pu_dp" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
|
||||||
|
IOBUF PORT "usb_fpga_pu_dn" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=16;
|
||||||
|
|
||||||
|
## JTAG ESP-32 "usb" sheet
|
||||||
|
# connected to FT231X and ESP-32
|
||||||
|
# commented out because those are dedicated pins, not directly useable as GPIO
|
||||||
|
# but could be used by some vendor-specific JTAG bridging (boundary scan) module
|
||||||
|
#LOCATE COMP "jtag_tdi" SITE "R5"; # FTDI_nRI FPGA receives
|
||||||
|
#LOCATE COMP "jtag_tdo" SITE "V4"; # FTDI_nCTS FPGA transmits
|
||||||
|
#LOCATE COMP "jtag_tck" SITE "T5"; # FTDI_nDSR FPGA receives
|
||||||
|
#LOCATE COMP "jtag_tms" SITE "U5"; # FTDI_nDCD FPGA receives
|
||||||
|
#IOBUF PORT "jtag_tdi" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
#IOBUF PORT "jtag_tdo" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
#IOBUF PORT "jtag_tck" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
#IOBUF PORT "jtag_tms" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
## SDRAM "ram" sheet
|
||||||
|
LOCATE COMP "sdram_clk" SITE "F19";
|
||||||
|
LOCATE COMP "sdram_cke" SITE "F20";
|
||||||
|
LOCATE COMP "sdram_csn" SITE "P20";
|
||||||
|
LOCATE COMP "sdram_wen" SITE "T20";
|
||||||
|
LOCATE COMP "sdram_rasn" SITE "R20";
|
||||||
|
LOCATE COMP "sdram_casn" SITE "T19";
|
||||||
|
LOCATE COMP "sdram_a[0]" SITE "M20";
|
||||||
|
LOCATE COMP "sdram_a[1]" SITE "M19";
|
||||||
|
LOCATE COMP "sdram_a[2]" SITE "L20";
|
||||||
|
LOCATE COMP "sdram_a[3]" SITE "L19";
|
||||||
|
LOCATE COMP "sdram_a[4]" SITE "K20";
|
||||||
|
LOCATE COMP "sdram_a[5]" SITE "K19";
|
||||||
|
LOCATE COMP "sdram_a[6]" SITE "K18";
|
||||||
|
LOCATE COMP "sdram_a[7]" SITE "J20";
|
||||||
|
LOCATE COMP "sdram_a[8]" SITE "J19";
|
||||||
|
LOCATE COMP "sdram_a[9]" SITE "H20";
|
||||||
|
LOCATE COMP "sdram_a[10]" SITE "N19";
|
||||||
|
LOCATE COMP "sdram_a[11]" SITE "G20";
|
||||||
|
LOCATE COMP "sdram_a[12]" SITE "G19";
|
||||||
|
LOCATE COMP "sdram_ba[0]" SITE "P19";
|
||||||
|
LOCATE COMP "sdram_ba[1]" SITE "N20";
|
||||||
|
LOCATE COMP "sdram_dqm[0]" SITE "U19";
|
||||||
|
LOCATE COMP "sdram_dqm[1]" SITE "E20";
|
||||||
|
LOCATE COMP "sdram_d[0]" SITE "J16";
|
||||||
|
LOCATE COMP "sdram_d[1]" SITE "L18";
|
||||||
|
LOCATE COMP "sdram_d[2]" SITE "M18";
|
||||||
|
LOCATE COMP "sdram_d[3]" SITE "N18";
|
||||||
|
LOCATE COMP "sdram_d[4]" SITE "P18";
|
||||||
|
LOCATE COMP "sdram_d[5]" SITE "T18";
|
||||||
|
LOCATE COMP "sdram_d[6]" SITE "T17";
|
||||||
|
LOCATE COMP "sdram_d[7]" SITE "U20";
|
||||||
|
LOCATE COMP "sdram_d[8]" SITE "E19";
|
||||||
|
LOCATE COMP "sdram_d[9]" SITE "D20";
|
||||||
|
LOCATE COMP "sdram_d[10]" SITE "D19";
|
||||||
|
LOCATE COMP "sdram_d[11]" SITE "C20";
|
||||||
|
LOCATE COMP "sdram_d[12]" SITE "E18";
|
||||||
|
LOCATE COMP "sdram_d[13]" SITE "F18";
|
||||||
|
LOCATE COMP "sdram_d[14]" SITE "J18";
|
||||||
|
LOCATE COMP "sdram_d[15]" SITE "J17";
|
||||||
|
IOBUF PORT "sdram_clk" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_cke" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_csn" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_wen" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_rasn" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_casn" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[2]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[3]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[4]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[5]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[6]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[7]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[8]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[9]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[10]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[11]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_a[12]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_ba[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_ba[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_dqm[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_dqm[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[0]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[1]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[2]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[3]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[4]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[5]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[6]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[7]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[8]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[9]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[10]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[11]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[12]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[13]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[14]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "sdram_d[15]" PULLMODE=NONE IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
# GPDI differential interface (Video) "gpdi" sheet
|
||||||
|
LOCATE COMP "gpdi_dp[0]" SITE "A16"; # Blue +
|
||||||
|
LOCATE COMP "gpdi_dn[0]" SITE "B16"; # Blue -
|
||||||
|
LOCATE COMP "gpdi_dp[1]" SITE "A14"; # Green +
|
||||||
|
LOCATE COMP "gpdi_dn[1]" SITE "C14"; # Green -
|
||||||
|
LOCATE COMP "gpdi_dp[2]" SITE "A12"; # Red +
|
||||||
|
LOCATE COMP "gpdi_dn[2]" SITE "A13"; # Red -
|
||||||
|
LOCATE COMP "gpdi_dp[3]" SITE "A17"; # Clock +
|
||||||
|
LOCATE COMP "gpdi_dn[3]" SITE "B18"; # Clock -
|
||||||
|
LOCATE COMP "gpdi_util" SITE "A19"; # add 10k parallel to C
|
||||||
|
LOCATE COMP "gpdi_hpd" SITE "B20"; # add 549ohm parallel to C
|
||||||
|
LOCATE COMP "gpdi_cec" SITE "A18";
|
||||||
|
LOCATE COMP "gpdi_sda" SITE "B19"; # I2C shared with RTC
|
||||||
|
LOCATE COMP "gpdi_scl" SITE "E12"; # I2C shared with RTC C12->E12
|
||||||
|
IOBUF PORT "gpdi_dp[0]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dn[0]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dp[1]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dn[1]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dp[2]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dn[2]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dp[3]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_dn[3]" IO_TYPE=LVCMOS33D DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_util" IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_hpd" IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_cec" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_sda" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gpdi_scl" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
# GPIO (default single-ended) "gpio", "ram", "gpdi" sheet
|
||||||
|
# Pins enumerated gp[0-27], gn[0-27].
|
||||||
|
# With differential mode enabled on Lattice,
|
||||||
|
# gp[] (+) are used, gn[] (-) are ignored from design
|
||||||
|
# as they handle inverted signal by default.
|
||||||
|
# To enable differential, rename LVCMOS33->LVCMOS33D
|
||||||
|
# FEMALE ANGLED (90 deg PMOD) on TOP or
|
||||||
|
# MALE VERTICAL ( 0 deg pins) on BOTTOM and flat cable
|
||||||
|
LOCATE COMP "gp[0]" SITE "B11"; # PCLK
|
||||||
|
LOCATE COMP "gn[0]" SITE "C11"; # PCLK
|
||||||
|
LOCATE COMP "gp[1]" SITE "A10"; # PCLK
|
||||||
|
LOCATE COMP "gn[1]" SITE "A11"; # PCLK
|
||||||
|
LOCATE COMP "gp[2]" SITE "A9"; # GR_PCLK
|
||||||
|
LOCATE COMP "gn[2]" SITE "B10"; # GR_PCLK
|
||||||
|
LOCATE COMP "gp[3]" SITE "B9";
|
||||||
|
LOCATE COMP "gn[3]" SITE "C10";
|
||||||
|
LOCATE COMP "gp[4]" SITE "A7";
|
||||||
|
LOCATE COMP "gn[4]" SITE "A8";
|
||||||
|
LOCATE COMP "gp[5]" SITE "C8";
|
||||||
|
LOCATE COMP "gn[5]" SITE "B8";
|
||||||
|
LOCATE COMP "gp[6]" SITE "C6";
|
||||||
|
LOCATE COMP "gn[6]" SITE "C7";
|
||||||
|
IOBUF PORT "gp[0]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[0]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[1]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[1]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[2]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[2]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[3]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[3]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[4]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[4]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[5]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[5]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[6]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[6]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "gp[7]" SITE "A6";
|
||||||
|
LOCATE COMP "gn[7]" SITE "B6";
|
||||||
|
LOCATE COMP "gp[8]" SITE "A4"; # DIFF
|
||||||
|
LOCATE COMP "gn[8]" SITE "A5"; # DIFF
|
||||||
|
LOCATE COMP "gp[9]" SITE "A2"; # DIFF
|
||||||
|
LOCATE COMP "gn[9]" SITE "B1"; # DIFF
|
||||||
|
LOCATE COMP "gp[10]" SITE "C4"; # DIFF
|
||||||
|
LOCATE COMP "gn[10]" SITE "B4"; # DIFF
|
||||||
|
LOCATE COMP "gp[11]" SITE "F4"; # DIFF wifi_gpio26
|
||||||
|
LOCATE COMP "gn[11]" SITE "E3"; # DIFF wifi_gpio25
|
||||||
|
LOCATE COMP "gp[12]" SITE "G3"; # DIFF wifi_gpio33 PCLK
|
||||||
|
LOCATE COMP "gn[12]" SITE "F3"; # DIFF wifi_gpio32 PCLK
|
||||||
|
LOCATE COMP "gp[13]" SITE "H4"; # DIFF wifi_gpio35
|
||||||
|
LOCATE COMP "gn[13]" SITE "G5"; # DIFF wifi_gpio34
|
||||||
|
IOBUF PORT "gp[7]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[7]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[8]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[8]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[9]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[9]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[10]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[10]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[11]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[11]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[12]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[12]" PULLMODE=NONE IO_TYPE=LVCMOS33;
|
||||||
|
FREQUENCY PORT "gn[12]" 50 MHZ;
|
||||||
|
IOBUF PORT "gp[13]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[13]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "gp[14]" SITE "U18"; # DIFF ADC AIN1
|
||||||
|
LOCATE COMP "gn[14]" SITE "U17"; # DIFF ADC AIN0
|
||||||
|
LOCATE COMP "gp[15]" SITE "N17"; # DIFF ADC AIN3
|
||||||
|
LOCATE COMP "gn[15]" SITE "P16"; # DIFF ADC AIN2
|
||||||
|
LOCATE COMP "gp[16]" SITE "N16"; # DIFF ADC AIN5
|
||||||
|
LOCATE COMP "gn[16]" SITE "M17"; # DIFF ADC AIN4
|
||||||
|
LOCATE COMP "gp[17]" SITE "L16"; # DIFF ADC AIN7 GR_PCLK
|
||||||
|
LOCATE COMP "gn[17]" SITE "L17"; # DIFF ADC AIN6
|
||||||
|
LOCATE COMP "gp[18]" SITE "H18"; # DIFF
|
||||||
|
LOCATE COMP "gn[18]" SITE "H17"; # DIFF
|
||||||
|
LOCATE COMP "gp[19]" SITE "F17"; # DIFF
|
||||||
|
LOCATE COMP "gn[19]" SITE "G18"; # DIFF
|
||||||
|
LOCATE COMP "gp[20]" SITE "D18"; # DIFF
|
||||||
|
LOCATE COMP "gn[20]" SITE "E17"; # DIFF
|
||||||
|
IOBUF PORT "gp[14]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[14]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[15]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[15]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[16]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[16]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[17]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[17]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[18]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[18]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[19]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[19]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[20]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[20]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "gp[21]" SITE "C18"; # DIFF
|
||||||
|
LOCATE COMP "gn[21]" SITE "D17"; # DIFF
|
||||||
|
LOCATE COMP "gp[22]" SITE "B15";
|
||||||
|
LOCATE COMP "gn[22]" SITE "C15";
|
||||||
|
LOCATE COMP "gp[23]" SITE "B17";
|
||||||
|
LOCATE COMP "gn[23]" SITE "C17";
|
||||||
|
LOCATE COMP "gp[24]" SITE "C16";
|
||||||
|
LOCATE COMP "gn[24]" SITE "D16";
|
||||||
|
LOCATE COMP "gp[25]" SITE "D14";
|
||||||
|
LOCATE COMP "gn[25]" SITE "E14";
|
||||||
|
LOCATE COMP "gp[26]" SITE "B13";
|
||||||
|
LOCATE COMP "gn[26]" SITE "C13";
|
||||||
|
LOCATE COMP "gp[27]" SITE "D13";
|
||||||
|
LOCATE COMP "gn[27]" SITE "E13";
|
||||||
|
IOBUF PORT "gp[21]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[21]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[22]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[22]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[23]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[23]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[24]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[24]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[25]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[25]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[26]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[26]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp[27]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn[27]" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
## GPIO repeated as individual signals (non-vector)
|
||||||
|
# Allows mixed input, output, bidirectional, clock, differential
|
||||||
|
# If any of individual gp is used, then don't use gp[] vector.
|
||||||
|
# Same for gn and gn[].
|
||||||
|
# FEMALE ANGLED (90 deg PMOD) on TOP or
|
||||||
|
# MALE VERTICAL ( 0 deg pins) on BOTTOM and flat cable
|
||||||
|
LOCATE COMP "sprite_addr[0]" SITE "B11"; # PCLK
|
||||||
|
LOCATE COMP "sprite_addr[1]" SITE "C11"; # PCLK
|
||||||
|
LOCATE COMP "EN_sprite" SITE "A10"; # PCLK
|
||||||
|
LOCATE COMP "grants[0]" SITE "A11"; # PCLK
|
||||||
|
LOCATE COMP "grants[1]" SITE "A9"; # GR_PCLK
|
||||||
|
LOCATE COMP "grants[2]" SITE "B10"; # GR_PCLK
|
||||||
|
LOCATE COMP "grants[3]" SITE "B9";
|
||||||
|
LOCATE COMP "grants[4]" SITE "C10";
|
||||||
|
LOCATE COMP "grants[5]" SITE "A7";
|
||||||
|
LOCATE COMP "rst_btn" SITE "A8";
|
||||||
|
LOCATE COMP "gp5" SITE "C8";
|
||||||
|
LOCATE COMP "gn5" SITE "B8";
|
||||||
|
LOCATE COMP "gp6" SITE "C6";
|
||||||
|
LOCATE COMP "gn6" SITE "C7";
|
||||||
|
IOBUF PORT "gp0" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn0" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp1" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn1" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp2" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn2" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp3" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn3" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp4" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn4" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp5" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn5" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp6" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn6" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "gp7" SITE "A6";
|
||||||
|
LOCATE COMP "gn7" SITE "B6";
|
||||||
|
LOCATE COMP "gp8" SITE "A4"; # DIFF
|
||||||
|
LOCATE COMP "gn8" SITE "A5"; # DIFF
|
||||||
|
LOCATE COMP "gp9" SITE "A2"; # DIFF
|
||||||
|
LOCATE COMP "gn9" SITE "B1"; # DIFF
|
||||||
|
LOCATE COMP "gp10" SITE "C4"; # DIFF
|
||||||
|
LOCATE COMP "gn10" SITE "B4"; # DIFF
|
||||||
|
LOCATE COMP "gp11" SITE "F4"; # DIFF wifi_gpio26
|
||||||
|
LOCATE COMP "gn11" SITE "E3"; # DIFF wifi_gpio25
|
||||||
|
LOCATE COMP "gp12" SITE "G3"; # DIFF wifi_gpio33 PCLK
|
||||||
|
LOCATE COMP "gn12" SITE "F3"; # DIFF wifi_gpio32 PCLK
|
||||||
|
LOCATE COMP "gp13" SITE "H4"; # DIFF wifi_gpio35
|
||||||
|
LOCATE COMP "gn13" SITE "G5"; # DIFF wifi_gpio34
|
||||||
|
# wifi sharing PCB v2.0.6-v3.0.8
|
||||||
|
# prior to v2.0.6 see schematics
|
||||||
|
IOBUF PORT "gp7" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn7" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp8" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn8" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp9" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn9" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp10" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn10" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp11" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn11" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp12" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn12" PULLMODE=NONE IO_TYPE=LVCMOS33;
|
||||||
|
FREQUENCY PORT "gn12" 50 MHZ;
|
||||||
|
IOBUF PORT "gp13" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn13" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "gp14" SITE "U18"; # DIFF ADC AIN1
|
||||||
|
LOCATE COMP "gn14" SITE "U17"; # DIFF ADC AIN0
|
||||||
|
LOCATE COMP "gp15" SITE "N17"; # DIFF ADC AIN3
|
||||||
|
LOCATE COMP "gn15" SITE "P16"; # DIFF ADC AIN2
|
||||||
|
LOCATE COMP "gp16" SITE "N16"; # DIFF ADC AIN5
|
||||||
|
LOCATE COMP "gn16" SITE "M17"; # DIFF ADC AIN4
|
||||||
|
LOCATE COMP "gp17" SITE "L16"; # DIFF ADC AIN7 GR_PCLK
|
||||||
|
LOCATE COMP "gn17" SITE "L17"; # DIFF ADC AIN6
|
||||||
|
LOCATE COMP "gp18" SITE "H18"; # DIFF
|
||||||
|
LOCATE COMP "gn18" SITE "H17"; # DIFF
|
||||||
|
LOCATE COMP "gp19" SITE "F17"; # DIFF
|
||||||
|
LOCATE COMP "gn19" SITE "G18"; # DIFF
|
||||||
|
LOCATE COMP "gp20" SITE "D18"; # DIFF
|
||||||
|
LOCATE COMP "gn20" SITE "E17"; # DIFF
|
||||||
|
IOBUF PORT "gp14" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn14" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp15" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn15" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp16" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn16" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp17" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn17" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp18" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn18" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp19" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn19" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp20" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn20" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
LOCATE COMP "gp21" SITE "C18"; # DIFF
|
||||||
|
LOCATE COMP "gn21" SITE "D17"; # DIFF
|
||||||
|
LOCATE COMP "gp22" SITE "B15";
|
||||||
|
LOCATE COMP "gn22" SITE "C15";
|
||||||
|
LOCATE COMP "gp23" SITE "B17";
|
||||||
|
LOCATE COMP "gn23" SITE "C17";
|
||||||
|
LOCATE COMP "gp24" SITE "C16";
|
||||||
|
LOCATE COMP "gn24" SITE "D16";
|
||||||
|
LOCATE COMP "gp25" SITE "D14";
|
||||||
|
LOCATE COMP "gn25" SITE "E14";
|
||||||
|
LOCATE COMP "gp26" SITE "B13";
|
||||||
|
LOCATE COMP "gn26" SITE "C13";
|
||||||
|
LOCATE COMP "gp27" SITE "D13";
|
||||||
|
LOCATE COMP "gn27" SITE "E13";
|
||||||
|
IOBUF PORT "gp21" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn21" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp22" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn22" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp23" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn23" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp24" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn24" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp25" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn25" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp26" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn26" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gp27" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
IOBUF PORT "gn27" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
## PROGRAMN (reload bitstream from FLASH, exit from bootloader)
|
||||||
|
# PCB v2.0.5 and higher
|
||||||
|
LOCATE COMP "user_programn" SITE "M4";
|
||||||
|
IOBUF PORT "user_programn" PULLMODE=UP IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
|
|
||||||
|
## SHUTDOWN "power", "ram" sheet (connected from PCB v1.7.5)
|
||||||
|
# on PCB v1.7 shutdown is not connected to FPGA
|
||||||
|
LOCATE COMP "shutdown" SITE "G16"; # FPGA receives
|
||||||
|
IOBUF PORT "shutdown" PULLMODE=DOWN IO_TYPE=LVCMOS33 DRIVE=4;
|
||||||
2
tasks.py
2
tasks.py
|
|
@ -89,7 +89,7 @@ def build(c, target="."):
|
||||||
for target in expand_build_target(target):
|
for target in expand_build_target(target):
|
||||||
out_info, out_verilog, out_bsc = ensure_build_dirs(target, "info", "verilog", "bsc")
|
out_info, out_verilog, out_bsc = ensure_build_dirs(target, "info", "verilog", "bsc")
|
||||||
print(f"Building {target}")
|
print(f"Building {target}")
|
||||||
c.run(f"bsc -aggressive-conditions -check-assert -remove-dollar -remove-empty-rules -remove-false-rules -remove-starved-rules -remove-unused-modules -show-method-conf -show-method-bvi -u -verilog -info-dir {out_info} -vdir {out_verilog} -bdir {out_bsc} -p {target.parent}:lib:%/Libraries -show-module-use -show-compiles {target}")
|
c.run(f"bsc -aggressive-conditions -check-assert -remove-dollar -remove-empty-rules -remove-false-rules -remove-starved-rules -remove-unused-modules -show-method-conf -show-method-bvi -u -verilog -info-dir {out_info} -vdir {out_verilog} -bdir {out_bsc} -p {target.parent}:vram:lib:%/Libraries -show-module-use -show-compiles {target}")
|
||||||
|
|
||||||
module_name = Path(f"mk{target.stem}")
|
module_name = Path(f"mk{target.stem}")
|
||||||
verilog_main_file = out_verilog / module_name.with_suffix(".v")
|
verilog_main_file = out_verilog / module_name.with_suffix(".v")
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,190 @@
|
||||||
|
package MemoryArbiter;
|
||||||
|
|
||||||
|
import Vector::*;
|
||||||
|
|
||||||
|
export MemoryArbiterWriter(..);
|
||||||
|
export MemoryArbiterReader(..);
|
||||||
|
export MemoryArbiter(..);
|
||||||
|
export mkMemoryArbiter;
|
||||||
|
|
||||||
|
// A MemoryArbiterWriter can request use of a memory port to write to
|
||||||
|
// an address. When a request is feasible, grant() returns True in the
|
||||||
|
// same cycle.
|
||||||
|
(* always_ready *)
|
||||||
|
interface MemoryArbiterWriter#(type addr);
|
||||||
|
method Action request(Bool write, addr address);
|
||||||
|
method Bool grant();
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
// MemoryArbiterReader can request use of a memory port to read from
|
||||||
|
// an address. When a request is feasible, grant() returns True in the
|
||||||
|
// same cycle.
|
||||||
|
(* always_ready *)
|
||||||
|
interface MemoryArbiterReader#(type addr);
|
||||||
|
method Action request(addr address);
|
||||||
|
method Bool grant();
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
// A MemoryArbiter manages concurrent access to memory ports. It
|
||||||
|
// mediates access between 2 writers and 4 readers, which are
|
||||||
|
// statically allocated to one of 2 internal memory ports.
|
||||||
|
interface MemoryArbiter#(type addr);
|
||||||
|
// Assigned to port A.
|
||||||
|
interface MemoryArbiterWriter#(addr) cpu;
|
||||||
|
interface MemoryArbiterWriter#(addr) debugger;
|
||||||
|
interface MemoryArbiterReader#(addr) palette;
|
||||||
|
|
||||||
|
// Assigned to port B.
|
||||||
|
interface MemoryArbiterReader#(addr) tile1;
|
||||||
|
interface MemoryArbiterReader#(addr) tile2;
|
||||||
|
interface MemoryArbiterReader#(addr) sprite;
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
// mkMemoryArbiter builds a GARY memory arbiter.
|
||||||
|
//
|
||||||
|
// Port A arbitrates with strict priority: CPU requests always proceed
|
||||||
|
// first, followed by debugger requests, then the palette DAC.
|
||||||
|
//
|
||||||
|
// Port B does round-robin arbitration, giving each client a fair
|
||||||
|
// chance of having its requests processed.
|
||||||
|
module mkMemoryArbiter(MemoryArbiter#(addr) ifc)
|
||||||
|
provisos(Bits#(addr, _),
|
||||||
|
Eq#(addr),
|
||||||
|
Alias#(write_req, Tuple2#(Bool, addr)));
|
||||||
|
|
||||||
|
//////
|
||||||
|
// Port A users
|
||||||
|
|
||||||
|
RWire#(write_req) cpu_req <- mkRWire();
|
||||||
|
RWire#(write_req) debugger_req <- mkRWire();
|
||||||
|
PulseWire palette_req <- mkPulseWire();
|
||||||
|
|
||||||
|
PulseWire cpu_ok <- mkPulseWire();
|
||||||
|
PulseWire debugger_ok <- mkPulseWire();
|
||||||
|
PulseWire palette_ok <- mkPulseWire();
|
||||||
|
|
||||||
|
// Address written to by port A, if any. Used to block port B
|
||||||
|
// clients that are trying to read the same address.
|
||||||
|
RWire#(addr) written_addr <- mkRWire();
|
||||||
|
|
||||||
|
// We could be fancy with rule conditions to express the priorities
|
||||||
|
// between clients, but Bluespec has the preempts annotation to
|
||||||
|
// express the ranking directly.
|
||||||
|
(* preempts = "grant_cpu, (grant_debugger, grant_palette)" *)
|
||||||
|
(* preempts = "grant_debugger, grant_palette" *)
|
||||||
|
|
||||||
|
(* fire_when_enabled *)
|
||||||
|
rule grant_cpu (cpu_req.wget matches tagged Valid {.write, .addr});
|
||||||
|
cpu_ok.send();
|
||||||
|
if (write)
|
||||||
|
written_addr.wset(addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
rule grant_debugger (debugger_req.wget matches tagged Valid {.write, .addr});
|
||||||
|
debugger_ok.send();
|
||||||
|
if (write)
|
||||||
|
written_addr.wset(addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
rule grant_palette (palette_req);
|
||||||
|
palette_ok.send();
|
||||||
|
endrule
|
||||||
|
|
||||||
|
//////
|
||||||
|
// Port B users
|
||||||
|
|
||||||
|
Vector#(3, RWire#(addr)) portB_req <- replicateM(mkRWire);
|
||||||
|
Wire#(Vector#(3, Bool)) portB_grant <- mkBypassWire();
|
||||||
|
|
||||||
|
Vector#(3, Bool) init = replicate(False); init[0] = True;
|
||||||
|
Reg#(Vector#(3, Bool)) priority_vec <- mkReg(init);
|
||||||
|
|
||||||
|
rule grant_portB;
|
||||||
|
Vector#(3, Bool) grants = replicate(False);
|
||||||
|
Bool port_available = False;
|
||||||
|
|
||||||
|
// This algorithm is a little mystifying at first glance, but it
|
||||||
|
// works. priority_vec has one bool per client, only one of
|
||||||
|
// which is True. That True bit identifies the client with the
|
||||||
|
// highest priority on the next request.
|
||||||
|
//
|
||||||
|
// This loop goes through each client twice, using
|
||||||
|
// port_available to track whether a client can grab the port or
|
||||||
|
// not. When we start iterating, the port is marked unavailable
|
||||||
|
// until we reach the top priority client, at which point we
|
||||||
|
// mark the port available and keep scanning. That effectively
|
||||||
|
// makes the search for a requesting client start at the top
|
||||||
|
// priority one.
|
||||||
|
//
|
||||||
|
// As we loop back around a second time, the availability bool
|
||||||
|
// gets reset again, but if you take the example of the True bit
|
||||||
|
// being in the middle of the vector, and consider cases where
|
||||||
|
// the first requestor is before/after that starting point,
|
||||||
|
// you'll see that it all works out, and at the end of the loop
|
||||||
|
// we have a new bit vector where only one client is True - the
|
||||||
|
// one whose request is granted.
|
||||||
|
for (Integer i = 0; i < 6; i=i+1) begin
|
||||||
|
Integer idx = i % 3;
|
||||||
|
if (priority_vec[idx])
|
||||||
|
port_available = True;
|
||||||
|
let req = portB_req[idx].wget();
|
||||||
|
if (port_available && isValid(req) && req != written_addr.wget()) begin
|
||||||
|
port_available = False;
|
||||||
|
grants[idx] = True;
|
||||||
|
end
|
||||||
|
end
|
||||||
|
portB_grant <= grants;
|
||||||
|
// If we granted a request, the grantee becomes the lowest
|
||||||
|
// priority client for the next round of requests. If nobody
|
||||||
|
// requested anything, keep the same priority as before.
|
||||||
|
if (any(id, grants))
|
||||||
|
priority_vec <= rotateR(grants);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
//////
|
||||||
|
// External interface
|
||||||
|
|
||||||
|
interface MemoryArbiterWriter cpu;
|
||||||
|
method Action request(write, addr);
|
||||||
|
cpu_req.wset(tuple2(write, addr));
|
||||||
|
endmethod
|
||||||
|
method grant = cpu_ok;
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
interface MemoryArbiterWriter debugger;
|
||||||
|
method Action request(write, addr);
|
||||||
|
debugger_req.wset(tuple2(write, addr));
|
||||||
|
endmethod
|
||||||
|
method grant = debugger_ok;
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
interface MemoryArbiterReader palette;
|
||||||
|
method Action request(addr);
|
||||||
|
palette_req.send();
|
||||||
|
endmethod
|
||||||
|
method grant = palette_ok;
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
interface MemoryArbiterReader tile1;
|
||||||
|
method Action request(addr);
|
||||||
|
portB_req[0].wset(addr);
|
||||||
|
endmethod
|
||||||
|
method grant = portB_grant[0];
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
interface MemoryArbiterReader tile2;
|
||||||
|
method Action request(addr);
|
||||||
|
portB_req[1].wset(addr);
|
||||||
|
endmethod
|
||||||
|
method grant = portB_grant[1];
|
||||||
|
endinterface
|
||||||
|
|
||||||
|
interface MemoryArbiterReader sprite;
|
||||||
|
method Action request(addr);
|
||||||
|
portB_req[2].wset(addr);
|
||||||
|
endmethod
|
||||||
|
method grant = portB_grant[2];
|
||||||
|
endinterface
|
||||||
|
endmodule
|
||||||
|
|
||||||
|
endpackage
|
||||||
|
|
@ -0,0 +1,310 @@
|
||||||
|
package MemoryArbiter_Test;
|
||||||
|
|
||||||
|
import Assert::*;
|
||||||
|
import StmtFSM::*;
|
||||||
|
import Testing::*;
|
||||||
|
import Printf::*;
|
||||||
|
import List::*;
|
||||||
|
import Vector::*;
|
||||||
|
import BuildVector::*;
|
||||||
|
|
||||||
|
import MemoryArbiter::*;
|
||||||
|
|
||||||
|
typedef UInt#(4) Addr;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
Bool write;
|
||||||
|
Addr addr;
|
||||||
|
} WriteReq deriving (Bits, Eq);
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
String name;
|
||||||
|
Maybe#(WriteReq) cpu;
|
||||||
|
Maybe#(WriteReq) debugger;
|
||||||
|
Maybe#(Addr) palette;
|
||||||
|
Maybe#(Addr) tile1;
|
||||||
|
Maybe#(Addr) tile2;
|
||||||
|
Maybe#(Addr) sprite;
|
||||||
|
|
||||||
|
Vector#(6, Bool) want;
|
||||||
|
} TestCase deriving (Bits, Eq);
|
||||||
|
|
||||||
|
function Maybe#(WriteReq) rwRead(Addr addr);
|
||||||
|
return tagged Valid WriteReq{write: False, addr: addr};
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
function Maybe#(WriteReq) rwWrite(Addr addr);
|
||||||
|
return tagged Valid WriteReq{write: True, addr: addr};
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
function Maybe#(Addr) read(Addr addr);
|
||||||
|
return tagged Valid addr;
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
function Maybe#(t) idle();
|
||||||
|
return tagged Invalid;
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
function Vector#(6, Bool) grant(Integer granted_a, Integer granted_b);
|
||||||
|
let ret = replicate(False);
|
||||||
|
if (granted_a >= 0)
|
||||||
|
ret[granted_a] = True;
|
||||||
|
if (granted_b >= 0)
|
||||||
|
ret[granted_b+3] = True;
|
||||||
|
return ret;
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
function TestCase testCase(String name,
|
||||||
|
Maybe#(WriteReq) cpu,
|
||||||
|
Maybe#(WriteReq) debugger,
|
||||||
|
Maybe#(Addr) palette,
|
||||||
|
Maybe#(Addr) tile1,
|
||||||
|
Maybe#(Addr) tile2,
|
||||||
|
Maybe#(Addr) sprite,
|
||||||
|
Integer portA,
|
||||||
|
Integer portB);
|
||||||
|
return TestCase{
|
||||||
|
name: name,
|
||||||
|
cpu: cpu,
|
||||||
|
debugger: debugger,
|
||||||
|
palette: palette,
|
||||||
|
tile1: tile1,
|
||||||
|
tile2: tile2,
|
||||||
|
sprite: sprite,
|
||||||
|
want: grant(portA, portB)
|
||||||
|
};
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
module mkTB();
|
||||||
|
MemoryArbiter#(Addr) dut <- mkMemoryArbiter();
|
||||||
|
|
||||||
|
Vector#(26, TestCase) tests = vec(
|
||||||
|
testCase("All idle",
|
||||||
|
idle, idle, idle,
|
||||||
|
idle, idle, idle,
|
||||||
|
-1, -1),
|
||||||
|
|
||||||
|
// Single client accesses at a time
|
||||||
|
testCase("CPU read", rwRead(1), idle, idle,
|
||||||
|
idle, idle, idle,
|
||||||
|
0, -1),
|
||||||
|
testCase("CPU write", rwWrite(1), idle, idle,
|
||||||
|
idle, idle, idle,
|
||||||
|
0, -1),
|
||||||
|
testCase("Debugger read",
|
||||||
|
idle, rwRead(1), idle,
|
||||||
|
idle, idle, idle,
|
||||||
|
1, -1),
|
||||||
|
testCase("Debugger write",
|
||||||
|
idle, rwWrite(1), idle,
|
||||||
|
idle, idle, idle,
|
||||||
|
1, -1),
|
||||||
|
testCase("Palette read",
|
||||||
|
idle, idle, read(1),
|
||||||
|
idle, idle, idle,
|
||||||
|
2, -1),
|
||||||
|
testCase("Tile1 read",
|
||||||
|
idle, idle, idle,
|
||||||
|
read(1), idle, idle,
|
||||||
|
-1, 0),
|
||||||
|
testCase("Tile2 read",
|
||||||
|
idle, idle, idle,
|
||||||
|
idle, read(1), idle,
|
||||||
|
-1, 1),
|
||||||
|
testCase("Sprite read",
|
||||||
|
idle, idle, idle,
|
||||||
|
idle, idle, read(1),
|
||||||
|
-1, 2),
|
||||||
|
|
||||||
|
// Strict priority on port A
|
||||||
|
testCase("CPU + Debugger + Palette",
|
||||||
|
rwRead(1), rwRead(2), read(3),
|
||||||
|
idle, idle, idle,
|
||||||
|
0, -1),
|
||||||
|
testCase("CPU + Palette",
|
||||||
|
rwRead(1), idle, read(3),
|
||||||
|
idle, idle, idle,
|
||||||
|
0, -1),
|
||||||
|
testCase("Debugger + Palette",
|
||||||
|
idle, rwRead(2), read(3),
|
||||||
|
idle, idle, idle,
|
||||||
|
1, -1),
|
||||||
|
|
||||||
|
// Round-robin on port B
|
||||||
|
testCase("Sprite read", // to reset round robin
|
||||||
|
idle, idle, idle,
|
||||||
|
idle, idle, read(1),
|
||||||
|
-1, 2),
|
||||||
|
testCase("Tile1 + Tile2 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
read(1), read(2), read(3),
|
||||||
|
-1, 0),
|
||||||
|
testCase("Tile1 + Tile2 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
read(1), read(2), read(3),
|
||||||
|
-1, 1),
|
||||||
|
testCase("Tile1 + Tile2 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
read(1), read(2), read(3),
|
||||||
|
-1, 2),
|
||||||
|
testCase("Tile1 + Tile2 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
read(1), read(2), read(3),
|
||||||
|
-1, 0),
|
||||||
|
testCase("Tile1 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
read(1), idle, read(3),
|
||||||
|
-1, 2),
|
||||||
|
testCase("Tile2 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
idle, read(2), read(3),
|
||||||
|
-1, 1),
|
||||||
|
testCase("Tile2 + Sprite",
|
||||||
|
idle, idle, idle,
|
||||||
|
idle, read(2), read(3),
|
||||||
|
-1, 2),
|
||||||
|
|
||||||
|
testCase("Read/read, no conflict",
|
||||||
|
rwRead(0), idle, idle,
|
||||||
|
read(0), idle, idle,
|
||||||
|
0, 0),
|
||||||
|
testCase("Write/read, no conflict",
|
||||||
|
rwWrite(1), idle, idle,
|
||||||
|
read(0), idle, idle,
|
||||||
|
0, 0),
|
||||||
|
testCase("Tile1 write conflict",
|
||||||
|
rwWrite(0), idle, idle,
|
||||||
|
read(0), idle, idle,
|
||||||
|
0, -1),
|
||||||
|
testCase("Tile2 write conflict",
|
||||||
|
rwWrite(0), idle, idle,
|
||||||
|
idle, read(0), idle,
|
||||||
|
0, -1),
|
||||||
|
testCase("Sprite write conflict",
|
||||||
|
rwWrite(0), idle, idle,
|
||||||
|
idle, idle, read(0),
|
||||||
|
0, -1),
|
||||||
|
testCase("Tile1 write conflict with debugger",
|
||||||
|
idle, rwWrite(0), idle,
|
||||||
|
read(0), idle, idle,
|
||||||
|
1, -1)
|
||||||
|
|
||||||
|
);
|
||||||
|
|
||||||
|
Reg#(UInt#(32)) idx <- mkReg(0);
|
||||||
|
|
||||||
|
rule display_test (idx == 0);
|
||||||
|
$display("RUN TestMemoryArbiter");
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule input_cpu (tests[idx].cpu matches tagged Valid .req &&& req matches WriteReq {write: .write, addr: .addr});
|
||||||
|
dut.cpu.request(write, addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule input_debugger (tests[idx].debugger matches tagged Valid .req &&& req matches WriteReq {write: .write, addr: .addr});
|
||||||
|
dut.debugger.request(write, addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule input_palette (tests[idx].palette matches tagged Valid .addr);
|
||||||
|
dut.palette.request(addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule input_tile1 (tests[idx].tile1 matches tagged Valid .addr);
|
||||||
|
dut.tile1.request(addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule input_tile2 (tests[idx].tile2 matches tagged Valid .addr);
|
||||||
|
dut.tile2.request(addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule input_sprite (tests[idx].sprite matches tagged Valid .addr);
|
||||||
|
dut.sprite.request(addr);
|
||||||
|
endrule
|
||||||
|
|
||||||
|
function Fmt rw_str(Maybe#(WriteReq) v);
|
||||||
|
case (v) matches
|
||||||
|
tagged Valid .req: begin
|
||||||
|
if (req.write)
|
||||||
|
return $format("Write(%0d)", req.addr);
|
||||||
|
else
|
||||||
|
return $format("Read(%0d)", req.addr);
|
||||||
|
end
|
||||||
|
tagged Invalid: return $format("Idle");
|
||||||
|
endcase
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
function Fmt ro_str(Maybe#(Addr) v);
|
||||||
|
case (v) matches
|
||||||
|
tagged Valid .addr: return $format("Read(%0d)", addr);
|
||||||
|
tagged Invalid: return $format("Idle");
|
||||||
|
endcase
|
||||||
|
endfunction
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule check_grants;
|
||||||
|
Vector#(6, Bool) gotVec = newVector;
|
||||||
|
gotVec[0] = dut.cpu.grant();
|
||||||
|
gotVec[1] = dut.debugger.grant();
|
||||||
|
gotVec[2] = dut.palette.grant();
|
||||||
|
gotVec[3] = dut.tile1.grant();
|
||||||
|
gotVec[4] = dut.tile2.grant();
|
||||||
|
gotVec[5] = dut.sprite.grant();
|
||||||
|
|
||||||
|
let test = tests[idx];
|
||||||
|
let got = pack(reverse(gotVec));
|
||||||
|
let want = pack(reverse(test.want));
|
||||||
|
|
||||||
|
$display("\n # %0d: %s", idx+1, tests[idx].name);
|
||||||
|
$display(" input:",
|
||||||
|
"\n 0:", rw_str(test.cpu), "\n 1:", rw_str(test.debugger), "\n 2:", ro_str(test.palette),
|
||||||
|
"\n 3:", ro_str(test.tile1), "\n 4:", ro_str(test.tile2), "\n 5:", ro_str(test.sprite));
|
||||||
|
$display(" got : %03b %03b", got[5:3], got[2:0]);
|
||||||
|
$display(" want: %03b %03b", want[5:3], want[2:0]);
|
||||||
|
dynamicAssert(got == want, "wrong arbiter output");
|
||||||
|
endrule
|
||||||
|
|
||||||
|
(* no_implicit_conditions, fire_when_enabled *)
|
||||||
|
rule advance_test;
|
||||||
|
let next = idx+1;
|
||||||
|
let max = fromInteger(arrayLength(vectorToArray(tests)));
|
||||||
|
if (next == max) begin
|
||||||
|
$display("OK TestMemoryArbiter");
|
||||||
|
$finish;
|
||||||
|
end
|
||||||
|
else
|
||||||
|
idx <= next;
|
||||||
|
endrule
|
||||||
|
|
||||||
|
// function Stmt testMemoryArbiter();
|
||||||
|
// return seq
|
||||||
|
// testCase(idle, idle, idle, idle, idle, idle,
|
||||||
|
// grant(-1, -1));
|
||||||
|
//
|
||||||
|
// // Simple single-client accesses
|
||||||
|
// testCase(readA(1), idle, idle, idle, idle, idle,
|
||||||
|
// grant(0, -1));
|
||||||
|
// testCase(writeA(1), idle, idle, idle, idle, idle,
|
||||||
|
// grant(0, -1));
|
||||||
|
// testCase(idle, readA(1), idle, idle, idle, idle,
|
||||||
|
// grant(1, -1));
|
||||||
|
// testCase(idle, writeA(1), idle, idle, idle, idle,
|
||||||
|
// grant(1, -1));
|
||||||
|
// testCase(idle, idle, read(1), idle, idle, idle,
|
||||||
|
// grant(2, -1));
|
||||||
|
// testCase(idle, idle, idle, read(1), idle, idle,
|
||||||
|
// grant(-1, 0));
|
||||||
|
// testCase(idle, idle, idle, idle, read(1), idle,
|
||||||
|
// grant(-1, 1));
|
||||||
|
// testCase(idle, idle, idle, idle, idle, read(1),
|
||||||
|
// grant(-1, 2));
|
||||||
|
// endseq;
|
||||||
|
// endfunction
|
||||||
|
endmodule
|
||||||
|
|
||||||
|
endpackage
|
||||||
Loading…
Reference in New Issue