NUCLEO-F756ZG support

[brave-ulysses]

https://www.st.com/en/microcontrollers-microprocessors/stm32f7x6.html

756 has hash+crypto, otherwise the same as 746

this works as a start to supporting NUCLEO-F756ZG board

svt@asrock:/opt/micropython/ports/stm32/boards$ diff stm32f756.ld stm32f746.ld
2c2
<     GNU linker script for STM32F756
---
>     GNU linker script for STM32F746
svt@asrock:/opt/micropython/ports/stm32/boards$ diff stm32f756_af.csv stm32f746_af.csv
svt@asrock:/opt/micropython/ports/stm32/boards$ diff NUCLEO_F756ZG NUCLEO_F746ZG
diff NUCLEO_F756ZG/board.json NUCLEO_F746ZG/board.json
8c8
<         "nucleo_f756zg.jpg"
---
>         "nucleo_f746zg.jpg"
11c11
<     "product": "Nucleo F756ZG",
---
>     "product": "Nucleo F746ZG",
diff NUCLEO_F756ZG/mpconfigboard.h NUCLEO_F746ZG/mpconfigboard.h
6,7c6,7
< #define MICROPY_HW_BOARD_NAME       "NUCLEO-F756ZG"
< #define MICROPY_HW_MCU_NAME         "STM32F756"
---
> #define MICROPY_HW_BOARD_NAME       "NUCLEO-F746ZG"
> #define MICROPY_HW_MCU_NAME         "STM32F746"
diff NUCLEO_F756ZG/mpconfigboard.mk NUCLEO_F746ZG/mpconfigboard.mk
2,4c2,4
< CMSIS_MCU = STM32F756xx
< AF_FILE = boards/stm32f756_af.csv
< LD_FILES = boards/stm32f756.ld boards/common_ifs.ld
---
> CMSIS_MCU = STM32F746xx
> AF_FILE = boards/stm32f746_af.csv
> LD_FILES = boards/stm32f746.ld boards/common_ifs.ld
svt@asrock:/opt/micropython/ports/stm32/boards$ 

svt@asrock:/opt/micropython/ports/stm32$ sudo MICROPY_PY_ETH=RMII BOARD=NUCLEO_F756ZG make -j80 clean
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
rm -rf build-NUCLEO_F756ZG 
svt@asrock:/opt/micropython/ports/stm32$ sudo MICROPY_PY_ETH=RMII BOARD=NUCLEO_F756ZG make -j80
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
mkdir -p build-NUCLEO_F756ZG/genhdr
mkdir -p build-NUCLEO_F756ZG/build-NUCLEO_F756ZG/
.
.
.
CC build-NUCLEO_F756ZG/pins_NUCLEO_F756ZG.c
CC build-NUCLEO_F756ZG/frozen_content.c
LINK build-NUCLEO_F756ZG/firmware.elf
   text	   data	    bss	    dec	    hex	filename
 487808	    116	  78680	 566604	  8a54c	build-NUCLEO_F756ZG/firmware.elf
GEN build-NUCLEO_F756ZG/firmware0.bin
GEN build-NUCLEO_F756ZG/firmware1.bin
GEN build-NUCLEO_F756ZG/firmware.hex
GEN build-NUCLEO_F756ZG/firmware.dfu
svt@asrock:/opt/micropython/ports/stm32$ 

svt@asrock:/opt/micropython/ports/stm32$ st-flash write build-NUCLEO_F756ZG/firmware1.bin 0x08020000
st-flash 1.6.0
2022-11-25T10:43:15 INFO common.c: Loading device parameters....
2022-11-25T10:43:15 INFO common.c: Device connected is: F7 device, id 0x10016449
2022-11-25T10:43:15 INFO common.c: SRAM size: 0x50000 bytes (320 KiB), Flash: 0x100000 bytes (1024 KiB) in pages of 2048 bytes
2022-11-25T10:43:15 INFO common.c: Attempting to write 472976 (0x73790) bytes to stm32 address: 134348800 (0x8020000)
Flash page at addr: 0x08080000 erasedEraseFlash - Sector:0x6 Size:0x40000 
2022-11-25T10:43:20 INFO common.c: Finished erasing 3 pages of 262144 (0x40000) bytes
2022-11-25T10:43:20 INFO common.c: Starting Flash write for F2/F4/L4
2022-11-25T10:43:20 INFO flash_loader.c: Successfully loaded flash loader in sram
enabling 32-bit flash writes
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 32768
size: 14224
2022-11-25T10:43:27 INFO common.c: Starting verification of write complete
2022-11-25T10:43:31 INFO common.c: Flash written and verified! jolly good!
svt@asrock:/opt/micropython/ports/stm32$ st-flash write build-NUCLEO_F756ZG/firmware0.bin 0x08000000
st-flash 1.6.0
2022-11-25T10:43:39 INFO common.c: Loading device parameters....
2022-11-25T10:43:39 INFO common.c: Device connected is: F7 device, id 0x10016449
2022-11-25T10:43:39 INFO common.c: SRAM size: 0x50000 bytes (320 KiB), Flash: 0x100000 bytes (1024 KiB) in pages of 2048 bytes
2022-11-25T10:43:39 INFO common.c: Attempting to write 14948 (0x3a64) bytes to stm32 address: 134217728 (0x8000000)
Flash page at addr: 0x08000000 erased
2022-11-25T10:43:40 INFO common.c: Finished erasing 1 pages of 32768 (0x8000) bytes
2022-11-25T10:43:40 INFO common.c: Starting Flash write for F2/F4/L4
2022-11-25T10:43:40 INFO flash_loader.c: Successfully loaded flash loader in sram
enabling 32-bit flash writes
size: 14948
2022-11-25T10:43:40 INFO common.c: Starting verification of write complete
2022-11-25T10:43:40 INFO common.c: Flash written and verified! jolly good!
svt@asrock:/opt/micropython/ports/stm32$ 

> repl
Entering REPL. Use Control-X to exit.
>
MicroPython v1.19.1 on 2022-11-25; NUCLEO-F756ZG with STM32F756
Type "help()" for more information.
>>> 
>>> 

[jimmo]

Thanks @brave-ulysses -- would you be willing to submit a PR for this?

[brave-ulysses]

yes. are there directions on what to do?

[jimmo]

https://github.com/micropython/micropython/blob/master/CONTRIBUTING.md

This covers the MicroPython-specific bits. Otherwise it's just like submitting a PR to any other GitHub project (push to a branch in your fork, create PR from there).

[brave-ulysses]

thanks. i'm rtfm-ing atm. it's my first pull request...

[brave-ulysses]

could use a little help, here:

Run source tools/ci.sh && ci_commit_formatting_run
From https://github.com/micropython/micropython
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> upstream/master
run upstream/master..HEAD --no-merges
verify f1de942
error: commit f1de942: Unwanted email address: [email protected]
error: commit f1de942: Unwanted email address: [email protected]
warning: commit f1de942: Message should be signed-off. Use "git commit -s".
See https://github.com/micropython/micropython/blob/master/CODECONVENTIONS.md
Error: Process completed with exit code 1.

not sure where these email addresses are coming from