Bug in CLI v2.21.0 using -w commands

[blast3r]

Hi all,

I've searched for similar post but solutions provided did not work for my case.

For compatibility reasons I needed to upgrade from ST-Link to Cube programmer CLI but I've encountered roadblocks while using the -w commands with the Cube CLI.

If I write directly with the CubeProgrammer UI, no issue at all, but if i try using CLI below error pops-up:

C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>STM32_Programmer_CLI.exe -c port=SWD mode=UR -w8 0x08080000 0x02 -v -hardRst
-------------------------------------------------------------------
STM32CubeProgrammer v2.21.0
-------------------------------------------------------------------

ST-LINK SN : 54FF6C066685495431141687
ST-LINK FW : V2J46S7
Board : --
Voltage : 2.71V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x482
Revision ID : Rev X
Device name : STM32U575/STM32U585
Flash size : 1 MBytes
Device type : MCU
Device CPU : Cortex-M33
BL Version : 0x92
Debug in Low Power mode enabled

Downloading 8-bit data...

██████████████████████████████████████████████████Error:
Downloading 8-bit data failed...
If it's a Flash memory, it may be not erased or protected

Some details about:

• If I try to write the same data that is already stored, it works (maybe cause it verifies and succeed for this reason - eventhought the "Downloading 8-bit data done successfully" string appears)
• already tried -w32 an -w64 option with no success but same behaviour as per previous point

Thanks all for your help and support with this.

Regards

G

[Kouthair]

Hello Blast3r and welcome to the community!

According to UM2237, downloading using -w<8,16,32> requires the flash memory to be erased since it doesn't erase it in order to write.

STM32CubeProgrammer GUI does it for you automatically when you edit.