PDP-11 ON RETRO-EP4CE15
Work in Progress
Contents
Build
- RETRO-EP4CE15
- Requires QM Tech Cyclone V FPGA Board
- Requires EP4CE55 Cyclone IV Card
- PDP2011 by Sytse van Slooten
- David Richards PDP-11 Build on A-ESTF V2 EP4CE22 Board
- System Images
J1 - I/O Connector (5CEFA2F23 FPGA Card pin numbers)
- J1-50 = GND
- J1-49 = GND
- J1-48 = PIN_M22 = resetbtn
- J1-47 = PIN_L22 = sw_cont
- J1-46 = PIN_L18 = sw_halt
- J1-45 = PIN_L19 = tx2
- J1-44 = PIN_M18 = rx2
- J1-43 = PIN_N19 = rts2
- J1-42 = PIN_M21 = cts2
- J1-41 = PIN_M20 = led_run
- J1-40 = PIN_N20 = xu_sclk
- J1-39 = PIN_N21 = xu_mosi
- J1-38 = PIN_P16 = xu_miso
- J1-37 = PIN_P17 = xu_debug_tx
- J1-36 = PIN_T20 = xu_cs
- J1-35 = PIN_T19 = max7219_load
- J1-34 = PIN_P22 = max7219_data
- J1-33 = PIN_R21 = max7219_clock
- J1-1 = VCC
- J1-2 = VCC
Configuration Switches/Jumpers/LEDs
J3 - Configuration Jumpers (5CEFA2F23 FPGA Card pin numbers)
| Function | DIP Switch | FPGA Pin |
|---|---|---|
rp boot
(off=boot to debugger) (on=rp boot) |
1 | PIN_L17 |
Buzzer
(off=not buzz) (on=buzzes constantly) |
2 | PIN_K17 |
rk boot
(off=rk boot) (on=boot to debugger) |
3 | PIN_K22 |
Swap console
(off=vga console) (on=RS-232 console) |
4 | PIN_K21 |
Switches
| Function | J10 Pin | FPGA Pin |
|---|---|---|
| resetbtn | SW9 | PIN_J16 |
| sw_halt | J10-30 | PIN_N14 |
| sw_cont | J10-32 | PIN_P15 |
| led_run | D8 | PIN_T15 |
Serial Port
- PIN_T5 = rx1 (in)
- PIN_T6 = tx1 (out)
- PIN_R16 = rx2 (in)
- PIN_P14 = tx2 (out)
- PIN_P16 = rts2 (out)
- PIN_N16 = cts2 (in)
External 8 Digit 7 segment MAX7219 LED
- PIN_L15 max7219_data J10-24
- PIN_N12 max7219_load J10-26
- PIN_N15 max7219_clock J10-28
Resources
- PDP2011 by Sytse van Slooten
- David J Richards - copied and adapted from pdp2011 by Sytse van Slooten
- David Richards PDP-11 Build
- Scott L Baker PDP11-SOC - PDP-11/20 CPU + UART + Timer + I/O Ports coded in VHDL and implemented for the Lattice iCE40-hx8k dev board
- PDP-11 on BitSavers
- w11: PDP 11/70 CPU and SoC - a PDP-11/70 CPU with memory management unit, but without floating point unit,
- Guide to run operating system images on w11a systems
Pin List
# Analysis & Synthesis Assignments # ================================ set_global_assignment -name FAMILY "Cyclone V" set_global_assignment -name TOP_LEVEL_ENTITY top set_global_assignment -name EDA_DESIGN_ENTRY_SYNTHESIS_TOOL "Design Compiler" # Fitter Assignments # ================== set_global_assignment -name DEVICE 5CEFA2F23I7 set_global_assignment -name STRATIX_DEVICE_IO_STANDARD "3.3-V LVTTL" set_global_assignment -name CRC_ERROR_OPEN_DRAIN OFF set_global_assignment -name CYCLONEII_RESERVE_NCEO_AFTER_CONFIGURATION "USE AS REGULAR IO" set_global_assignment -name FORCE_CONFIGURATION_VCCIO ON # Pin & Location Assignments # ========================== set_location_assignment PIN_M9 -to clkin set_location_assignment PIN_M22 -to resetbtn set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to resetbtn set_location_assignment PIN_L22 -to sw_cont set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to sw_cont set_location_assignment PIN_L18 -to sw_halt set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to sw_halt set_location_assignment PIN_M20 -to led_run set_location_assignment PIN_L17 -to switch[0] set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to switch[0] set_location_assignment PIN_K17 -to switch[1] set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to switch[1] set_location_assignment PIN_K22 -to switch[2] set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to switch[2] set_location_assignment PIN_K21 -to switch[3] set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to switch[3] set_location_assignment PIN_AA2 -to ps2k_c set_location_assignment PIN_AA1 -to ps2k_d set_location_assignment PIN_A15 -to vgah set_location_assignment PIN_A14 -to vgav set_location_assignment PIN_A13 -to o_vgab[1] set_location_assignment PIN_B13 -to o_vgab[0] set_location_assignment PIN_C13 -to o_vgag[1] set_location_assignment PIN_D13 -to o_vgag[0] set_location_assignment PIN_D12 -to o_vgar[1] set_location_assignment PIN_E12 -to o_vgar[0] set_location_assignment PIN_Y9 -to dram_addr[12] set_location_assignment PIN_T9 -to dram_addr[11] set_location_assignment PIN_R6 -to dram_addr[10] set_location_assignment PIN_W8 -to dram_addr[9] set_location_assignment PIN_T8 -to dram_addr[8] set_location_assignment PIN_U8 -to dram_addr[7] set_location_assignment PIN_V6 -to dram_addr[6] set_location_assignment PIN_U7 -to dram_addr[5] set_location_assignment PIN_U6 -to dram_addr[4] set_location_assignment PIN_N6 -to dram_addr[3] set_location_assignment PIN_N8 -to dram_addr[2] set_location_assignment PIN_P7 -to dram_addr[1] set_location_assignment PIN_P8 -to dram_addr[0] set_location_assignment PIN_P9 -to dram_ba_1 set_location_assignment PIN_T7 -to dram_ba_0 set_location_assignment PIN_AA7 -to dram_cas_n set_location_assignment PIN_V9 -to dram_cke set_location_assignment PIN_AB11 -to dram_clk set_location_assignment PIN_AB5 -to dram_cs_n set_location_assignment PIN_P12 -to dram_dq[15] set_location_assignment PIN_R12 -to dram_dq[14] set_location_assignment PIN_U12 -to dram_dq[13] set_location_assignment PIN_R11 -to dram_dq[12] set_location_assignment PIN_R10 -to dram_dq[11] set_location_assignment PIN_U11 -to dram_dq[10] set_location_assignment PIN_T10 -to dram_dq[9] set_location_assignment PIN_U10 -to dram_dq[8] set_location_assignment PIN_AA8 -to dram_dq[7] set_location_assignment PIN_AB8 -to dram_dq[6] set_location_assignment PIN_AA9 -to dram_dq[5] set_location_assignment PIN_Y10 -to dram_dq[4] set_location_assignment PIN_AB10 -to dram_dq[3] set_location_assignment PIN_AA10 -to dram_dq[2] set_location_assignment PIN_Y11 -to dram_dq[1] set_location_assignment PIN_AA12 -to dram_dq[0] set_location_assignment PIN_V10 -to dram_udqm set_location_assignment PIN_AB7 -to dram_ldqm set_location_assignment PIN_AB6 -to dram_ras_n set_location_assignment PIN_W9 -to dram_we_n set_location_assignment PIN_C11 -to tx1 set_location_assignment PIN_G10 -to rx1 set_location_assignment PIN_B11 -to cts1 set_location_assignment PIN_F10 -to rts1 set_location_assignment PIN_L19 -to tx2 set_location_assignment PIN_M18 -to rx2 set_location_assignment PIN_M21 -to cts2 set_location_assignment PIN_N19 -to rts2 set_location_assignment PIN_C16 -to sdcard_sclk set_location_assignment PIN_B15 -to sdcard_cs set_location_assignment PIN_B16 -to sdcard_miso set_location_assignment PIN_C15 -to sdcard_mosi set_location_assignment PIN_R21 -to max7219_clock set_location_assignment PIN_P22 -to max7219_data set_location_assignment PIN_T19 -to max7219_load set_location_assignment PIN_T20 -to xu_cs set_location_assignment PIN_P17 -to xu_debug_tx set_location_assignment PIN_P16 -to xu_miso set_location_assignment PIN_N21 -to xu_mosi set_location_assignment PIN_N20 -to xu_sclk
