# STM32H750VB_MRB

This is a WIP reference implementation for mruby on some random STM32 boards.  
It loads a script (`boot.rb`) from SD card, compiles to IREP and executes it.  

*They do have Python*

### What's working
* mRuby core and compiler
* UART(stdout)
* RTOS delay
* SD Card (FatFS)

### What's not working
* Everything else

### How to build
```bash
mkdir build && cd build
cmake -DCMAKE_TOOLCHAIN_FILE=arm-none-eabi.cmake  ..
```

### About targets
`_FLASH.elf` is not working, since H750VB only got 128kB Flash  
`_RAM.elf` is mean to be loaded by a debugger, e.g. ST-LINK

### Notes
This code is highly coupled with STM32H750(caused by fixed memory map).  
A custom board design is planned.

### License
Anything comes with its own license, either in the header of the file, or listed seperately.  
Others are subject to the `LICENSE` file.

### TODO
* QUADSPI XIP bootloader
* Driver wrappers
* File access and `load`/`require` support
* A custom board (hopefully)
* Platform independent (without CubeMX)