ysawc / embassyfc2

developing NES on FPGA project.

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/6502 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.
...

default pin function.

stm32	FPGA	description
A0	GPIO4	RW(LOW=write, HIGH=read)
A1	GPIO5	Nop(Low if cpumode in fpga is not nop)
PA4	GPIO6	Resb
PA2	GPIO0	RX
PA9	GPIO1	TX
PA12	GPIO2	CTS
PA11	GPIO3	RTS

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"