We have an initial BASIC running on the STM32G431. This will be available to commercial customers, and customization can be done as well. Contact sales.
The initial clock setup and PLL programming for 170 MHz operation are complete. UART programming is done, the FIFO interrupts are a little different than anything I have seen, but now handled correctly. With a UART running, the monitor program helps a lot with debug. Much easier to poke around memory and the hardware registers, than using Serial Wire Debug.
Over the weekend Flash programming and BASIC interrupt handling should be added. Then running all the test programs.
This project is being done on one of the Nucleo boards.
Check that picture -- time to update the Copyright notice !!