I don't have a NUCLEO-STM32H7A3 board, but just out of curiosity: does the attached .dfu binary boot?
Install using dfu-util -a 0 -D firmware.dfu
Search found 5 matches
- Sun Dec 13, 2020 8:11 am
- Forum: Other Boards
- Topic: [NUCLEO-STM32H7A3] stm32lib port
- Replies: 2
- Views: 2250
- Mon Dec 07, 2020 6:52 pm
- Forum: Hardware Projects
- Topic: STM32H7A3 and external SPI RAM
- Replies: 0
- Views: 2861
STM32H7A3 and external SPI RAM
repl prompt on STM32H7A3. Working towards getting 8 mbyte ram on stm32 micropython.
```
MicroPython v1.13-237-g8db488963-dirty on 2020-12-07; DEVEBOX STM32H7XX with STM32H7A3
Type "help()" for more information.
>>> import gc
>>> gc.mem_free()
999584
```
https://github.com/koendv/micropython-spiram
```
MicroPython v1.13-237-g8db488963-dirty on 2020-12-07; DEVEBOX STM32H7XX with STM32H7A3
Type "help()" for more information.
>>> import gc
>>> gc.mem_free()
999584
```
https://github.com/koendv/micropython-spiram
- Sat Dec 05, 2020 9:45 am
- Forum: Other Boards
- Topic: New STM32H743VIT6 dev boards
- Replies: 36
- Views: 76763
Re: New STM32H743VIT6 dev boards
DEVEBOX STM32H750 micropython binaries and installation notes
- Thu Dec 03, 2020 7:43 am
- Forum: Other Boards
- Topic: New STM32H743VIT6 dev boards
- Replies: 36
- Views: 76763
Re: New STM32H743VIT6 dev boards
This is STM32H 750VB T6 boart with only 128K of flash! Don't believe sellers without any descriptions... STM says the H750 has only 128kbyte flash, but the chip I have has 2 mbyte flash on it. If you boot in DFU over USB the bootloader hangs if you try to write all 2mbyte. But connecting a debugger...
- Wed Oct 28, 2020 6:48 pm
- Forum: Drivers for External Components
- Topic: spi ram
- Replies: 1
- Views: 2181
spi ram
FYI: driver for external qspi ram. https://github.com/koendv/micropython-psram Perhaps a small explanation. I needed more ram than available, so I unsoldered an spi flash chip from a board, and soldered an spi ram in its place. Wrote a small driver; implemented a module for reading and writing bytes...