This project is based in the devebox stm32h743vti board (https://www.aliexpress.com/item/1005001683272407.html) This is still much in the works, no UI yet... The code uploaded runs by default as a 512KB REU.
##Pinout
##Expansion port:
| Stm32 | Expansion port name | Expansion port pin |
|---|---|---|
| PE0-PE15 | Address bus A0-A15 | Y - F |
| PA0-PA7 | Data bus D0-D7 | 21 - 14 |
| PA8 | Phi2 | E |
| PD0 | IRQ | 4 |
| PD1 | R/W | 5 |
| PD3 | IO1 | 7 |
| PD4 | GAME | 8 |
| PD5 | EXROM | 9 |
| PD6 | IO/2 | 10 |
| PD7 | ROML | 11 |
| PD8 | BA | 12 |
| PD9 | DMA | 13 |
| PD10 | ROMH | B |
| PD13 | RESET | C |
| PD14 | NMI | D |
| PB6 | 5V | 2 |
| Ground | Ground | 1 |
##Control pins
| Pin | Description |
|---|---|
| PB9 | debug line (to pin header) |
| PC0 | button1 (planned) |
| PC1 | button2 (planned) |
| PB3 | SCK SPI 1 |
| PB4 | MISO SPI 1 |
| PB5 | MOSI SPI 1 |
| PC4 | CS1 SPI 1 |
| PB13 | SCK SPI 2 |
| PB14 | MISO SPI 2 |
| PB15 | MOSI SPI 2 |
| PC5 | CS2 SPI 2 |