I have been working with a custom board using the STM32U073 for while, and have made a program that can active the USB system memory DFU. After this I suddenly cannot program the board anymore using the STM32CubeProgrammer.
I can read all the flash memory, but cannot program the flash anymore.
...
Debugger connected
Waiting for debugger connection...
vchg_ctrl_run (duration_ms=16174368) at xxx/vchg_ctrl.c:108
108 setVchg(vchg_state); // Set the charger state based on the conditions
connected to remote target localhost:61234
Note: automatically using hardware breakpoints for read-only addresses.
load "xxx/build/Debug/hp2_charger_stm32_new.elf"
Loading section .isr_vector, size 0xc0 lma 0x8000000
Loading section .text, size 0x10318 lma 0x80000c0
Loading section .rodata, size 0x754 lma 0x80103d8
Loading section .ARM, size 0x8 lma 0x8010b2c
Loading section .init_array, size 0x4 lma 0x8010b34
Loading section .fini_array, size 0x4 lma 0x8010b38
Loading section .data, size 0x138 lma 0x8010b3c
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STM32CubeProgrammer v2.20.0
-------------------------------------------------------------------
3
Log output file: C:\Users\jju\AppData\Local\Temp\STM32CubeProgrammer_a21944.log
ST-LINK SN : 066CFF535149756687104533
ST-LINK FW : V2J46M32
Board : NUCLEO-F070RB
Voltage : 3.26V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x489
Revision ID : Rev A
Device name : STM32U0xx
Flash size : 256 KBytes (default)
Device type : MCU
Device CPU : Cortex-M0+
BL Version : 0xD0
Debug in Low Power mode enabled
3
Opening and parsing file: ST-LINK_GDB_server_a21944.srec
2
Memory Programming ...
File : ST-LINK_GDB_server_a21944.srec
Size : 67.11 KB
Address : 0x08000000
2
Erasing memory corresponding to segment 0:
Erasing internal memory sectors [0 33]
Download in Progress:
2
Error: failed to download Sector[0]
Error: failed to download the File
Encountered Error when opening C:/Users/jju/AppData/Local/stm32cube/bundles/programmer/2.20.0/bin\STM32_Programmer_CLI.exe
Error in STM32CubeProgrammer
Error finishing flash operation
cube is killed by signal SIGTERM
