Josverl/flash_stm32.md

## flash_stm32.md

      
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              flash_stm32.md
            
          
    Flash STM32 boards on Windows, Linux and Mac OS using the STM32CubeProgrammer

Download the STM32CubeProgrammer software from the ST website.
https://www.st.com/en/development-tools/stm32cubeprog.html#overview
install it and add it to your shell's path (e.g. .bashrc or .profile)

add to path if not already there.
$env:Path += ";C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin"
Flash a device.
In this case the board is a pyboard v1.1 connected to COM7:

mpremote list
COM7 206437A1304E f055:9800 Microsoft None

Put the stm32 board in bootloader mode.
mpremote COM7 bootloader
show/confirm device(s) in DFU-Mode

STM32_Programmer_CLI --list
Note , STM32 Cube programmer uses USB1 even if the serialport that is exposed is COM7
-------------------------------------------------------------------
                 STM32CubeProgrammer v2.13.0
-------------------------------------------------------------------
=====  DFU Interface   =====
Total number of available STM32 device in DFU mode: 1
Device Index           : USB1
USB Bus Number         : 001
USB Address Number     : 002
Product ID             : STM32  BOOTLOADER
Serial number          : 206437A1304E
Firmware version       : 0x011a
Device ID              : 0x0413
===== STLink Interface =====
Error: No ST-Link detected!

Test connection.
STM32_Programmer_CLI --connect port=USB1
# -------------------------------------------------------------------
# STM32CubeProgrammer v2.13.0
# -------------------------------------------------------------------
# USB speed   : Full Speed (12MBit/s)
# Manuf. ID   : STMicroelectronics
# Product ID  : STM32  BOOTLOADER
# SN          : 206437A1304E
# DFU protocol: 1.1
# Board       : --
# Device ID   : 0x0413
# Device name : STM32F405xx/F407xx/F415xx/F417xx
# Flash size  : 1 MBytes (default)
# Device type : MCU
# Revision ID : --
# Device CPU  : Cortex-M4

Optionally you can erase the device before flashing the new fimware.
STM32_Programmer_CLI --connect port=USB1 --erase all
Mass erase ...
Mass erase command correctly executed.
Note: if there's any flash protection, it will not be erased.

**Flash the firmware from the specified hex file
Note: the older .dfu files are not supported by STM32_Programmer_CLI
STM32_Programmer_CLI --connect port=USB1 --write "STM32\pybv11-thread-20220618-v1.19.1.hex"
STM32CubeProgrammer v2.13.0
-------------------------------------------------------------------
USB speed   : Full Speed (12MBit/s)
Manuf. ID   : STMicroelectronics
Product ID  : STM32  BOOTLOADER
SN          : 206437A1304E
DFU protocol: 1.1
-------------------------------------------------------------------
Board       : --
Device ID   : 0x0413
Device name : STM32F405xx/F407xx/F415xx/F417xx
Flash size  : 1 MBytes (default)
Device type : MCU
Revision ID : --  
Device CPU  : Cortex-M4
Memory Programming ...
Opening and parsing file: pybv11-thread-20220618-v1.19.1.hex
File          : pybv11-thread-20220618-v1.19.1.hex
Size          : 362.69 KB
Address       : 0x08000000
Erasing memory corresponding to segment 0:
Erasing internal memory sector 0
erasing sector 0000 @: 0x08000000 done
Erasing memory corresponding to segment 1:
Erasing internal memory sectors [5 7]
erasing sector 0005 @: 0x08020000 done
erasing sector 0006 @: 0x08040000 done
erasing sector 0007 @: 0x08060000 done
Download in Progress:
█████████████████████████████████████████▒▒▒▒▒▒▒▒▒ 78%
File download complete
Time elapsed during download operation: 00:00:13.961

Restarting the device.
I have not yet found a way to restart the MCU from script.
none of the likely commands work --go, --start or not while connected using USB -rst
There is a way by inspecting the .hex file before flashing,
and retrieving the start address from it
bincopy  info "STM32\pybv11-thread-20220618-v1.19.1.hex"
outputs Start address : 0x0805aa95


before-last line of the HEX file

:040000050805AA95AB
:04|0000|05|0805AA95|AB
import bincopy 
hex = bincopy.BinFile("STM32\pybv11-thread-20220618-v1.19.1.hex")
start_address = f"0x{hex.execution_start_address:08X}"
STM32_Programmer_CLI --connect port=USB1  --write "STM32\pybv11-thread-20220618-v1.19.1.hex" --go 0x0805aa95