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embassy fc2

famicom simulator written with rust and veryl. This repository includes embed software and hardware projects. Currently software is used to send signals for cpu test.

examples

Before run below samples, there are some step needs.

  1. program FPGA with veryls/FC2 HDL files.
  2. connect stm32l476rg and FPGA with usart.(default pin function is below.)
  3. run software

single test runner

cd packages/stm32l476rg
cargo run --bin jmp_tests

If test passed, message shown as below. If test not passed, invalid status message shown or signal blocking will occure.

...
INFO  rw flag is high
└─ jmp_abs_test::__cortex_m_rt_main @ src/bin/jmp_abs_test.rs:36
INFO  write target memory row.
└─ jmp_abs_test::__cortex_m_rt_main @ src/bin/jmp_abs_test.rs:44
INFO  write target memory high.
└─ jmp_abs_test::__cortex_m_rt_main @ src/bin/jmp_abs_test.rs:47
INFO  write operation mode.
└─ jmp_abs_test::__cortex_m_rt_main @ src/bin/jmp_abs_test.rs:50
INFO  write tx reg.
└─ jmp_abs_test::__cortex_m_rt_main @ src/bin/jmp_abs_test.rs:53
INFO  test passed!
└─ jmp_abs_test::__cortex_m_rt_main @ src/bin/jmp_abs_test.rs:5

multiple test runner

To check tests at once, run test-executor.

> cd packages/test-executor
> cargo run
   Compiling test-executor v0.1.0 (/home/ys/workspace/Rust/embassyFc2/packages/test-executor)
    Finished dev [unoptimized + debuginfo] target(s) in 0.45s
     Running `target/debug/test-executor`
   Compiling stm32l476rg v0.1.0 (/home/ys/workspace/Rust/embassyFc2/packages/stm32l476rg)
    Finished dev [unoptimized + debuginfo] target(s) in 0.33s
     Running `probe-run --chip STM32L476rg target/thumbv7em-none-eabi/debug/cl_tests`
(HOST) INFO  flashing program (83 pages / 83.00 KiB)
(HOST) INFO  success!
(HOST) WARN  `defmt::timestamp!` implementation was found, but timestamp is not part of the log format; consider adding the timestamp `{t}` argument to the log format
────────────────────────────────────────────────────────────────────────────────
cl_tests passed.
    Finished dev [unoptimized + debuginfo] target(s) in 0.05s
     Running `probe-run --chip STM32L476rg target/thumbv7em-none-eabi/debug/cmp_tests`
(HOST) INFO  flashing program (83 pages / 83.00 KiB)
(HOST) INFO  success!
(HOST) WARN  `defmt::timestamp!` implementation was found, but timestamp is not part of the log format; consider adding the timestamp `{t}` argument to the log format
────────────────────────────────────────────────────────────────────────────────
cmp_tests passed.
...

execute nestest until specified line

nestest includes automation executing system within program counter to 0c000h.

This system can call execute_sequence-[line] in make command. This command executes nestest until specified line of dump_logs/nestest.log with checking valid cpu register value comparing of nestest.log .

Nestest file prepared with mif(Memory initialization file).

make execute_sequence-[UntilLine]

default pin function.

stm32 FPGA description
PA0 GPIO4 RW(LOW=write, HIGH=read)
PA1 GPIO5 Nop(Low if cpumode in fpga is not nop)
PA4 GPIO6 Resb
PA10 GPIO0 RX
PA9 GPIO1 TX
PA12 GPIO2 RTS
PA11 GPIO3 CTS

requirements

  • usbblaster rules
cat /etc/udev/rules.d/51-usbblaster.rules
# USB-Blaster
SUBSYSTEM=="usb", ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6001", MODE="0666"
SUBSYSTEM=="usb", ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6002", MODE="0666"
SUBSYSTEM=="usb", ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6003", MODE="0666"

# USB-Blaster II
SUBSYSTEM=="usb", ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6010", MODE="0666"
SUBSYSTEM=="usb", ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6810", MODE="0666"
  • stm32 rules
❯ cat /etc/udev/rules.d/49-stm32.rules
# 0483:5740 - STM32F4 Dsicovery in USB Serial Mode (CN5)
ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", ENV{ID_MM_DEVICE_IGNORE}="1"
ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", ENV{MTP_NO_PROBE}="1"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", MODE:="0666"
KERNEL=="ttyACM*", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", MODE:="0666"

# 0483:df11 - STM32F4 Discovery in DFU mode (CN5)
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE:="0666"