# YMF-262 Firmware for Nucleo F722ZE Board and STM32F7 MCU


## Building

To build a Flashable .elf file issue the following commands:

- Debug:

	```cmake --preset Debug && cmake --build --preset Debug```

- Release:

	```cmake --preset Release && cmake --build --preset Release```

## Flashing:
To flash the .elf file please issue the following command:
  
```openocd -f interface/stlink.cfg -f target/stm32f7x.cfg -c "program YMF262_Devboard_Firmware.elf verify reset exit"```

## Testing

The HAL logic is unit-tested on the host (x86) using GoogleTest, with a `FakeGpio` mock that records the GPIO operations instead of touching hardware. This verifies the YMF262 write choreography (two-cycle address/data sequence and timing) without needing the physical chip.

To build and run the tests:

````cd Tests
	cmake -B build
	cmake --build build
	./build/run_tests```

GoogleTest is fetched automatically via CMake FetchContent on the first configure (requires internet).
````