How can I use the STM32CubeProgrammer windows executable to read a memory area without the device resetting?

[ADiet.1]

I have been trying to read a memory area as follows on windows power shell:

.\STM32_Programmer_CLI.exe -c port=SWD -r8 0x08080000 8 -r8 0x08080C00 8

but that triggers a reset of the device. I do not want a device reset, I just want to read the memory as specified. How to do that?

[ADiet.1]

Here is the output:

PS C:\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>  ./STM32_Programmer_CLI.exe -c port=SWD  -e all
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.13.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF71065056705420540981
ST-LINK FW  : V2J29S7
Board       : --
SWD freq    : 4000 KHz
Connect mode: Normal
Reset mode  : Software reset
Device ID   : 0x447
Revision ID : Rev Z
Device name : STM32L07x/L08x/L010
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M0+
BL Version  : 0xB2
 
 
Mass erase ...
 
Mass erase successfully achieved
PS C:\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>  ./STM32_Programmer_CLI.exe -c port=SWD  mode=NORMAL -r8 0x08080000 8 -r8 0x08080C00 8
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.13.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF71065056705420540981
ST-LINK FW  : V2J29S7
Board       : --
Voltage     : 3.21V
SWD freq    : 4000 KHz
Connect mode: Normal
Reset mode  : Software reset
Device ID   : 0x447
Revision ID : Rev Z
Device name : STM32L07x/L08x/L010
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M0+
BL Version  : 0xB2
 
0x08080000 : 00 00 00 00 00 00 00 00
 
0x08080C00 : 00 00 00 00 00 00 00 00
 
PS C:\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>  ./STM32_Programmer_CLI.exe -c port=SWD  mode=HOTPLUG -r8 0x08080000 8 -r8 0x08080C00 8
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.13.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF71065056705420540981
ST-LINK FW  : V2J29S7
Board       : --
Voltage     : 3.20V
SWD freq    : 4000 KHz
Connect mode: Hot Plug
Reset mode  : Software reset
Device ID   : 0x447
Revision ID : Rev Z
Device name : STM32L07x/L08x/L010
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M0+
BL Version  : 0xB2
 
0x08080000 : 00 00 00 00 00 00 00 00
 
0x08080C00 : 00 00 00 00 00 00 00 00

[waclawek.jan]

My guess is that this is related to the dual-bank operation and its related flags (UFB maybe?).

With hot-plug, the running program may switch the mapping without knowledge of the programmer, and then it's always questionable, how far the programmer/debugger should force its settings to the application.

JW

[Aziz BRIGUI]

Thanks for sharing @ADiet.1​ !

Now with the flash erased, try to write data in EEPROM (starting from 0x08080000), and verify if the issue persists (you can use the -w32 option via CLI)

Then, visualize the EEPROM data, you will find that the same data is displayed in both modes(Hotplug and Normal)

Do you confirm this ?

[ADiet.1]

Hello, here is the output:

PS C:\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin> ./STM32_Programmer_CLI.exe -c port=SWD mode=NORMAL -r8 0x08080000 8 -r8 0x08080C00 8
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.13.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF6E065056705437210781
ST-LINK FW  : V2J29S7
Board       : --
Voltage     : 3.23V
SWD freq    : 4000 KHz
Connect mode: Normal
Reset mode  : Software reset
Device ID   : 0x447
Revision ID : Rev Z
Device name : STM32L07x/L08x/L010
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M0+
BL Version  : 0xB2
 
0x08080000 : 00 00 00 00 00 00 00 00
 
0x08080C00 : 00 00 00 00 00 00 00 00
 
PS C:\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin> ./STM32_Programmer_CLI.exe -c port=SWD mode=HOTPLUG -r8 0x08080000 8 -r8 0x08080C00 8
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.13.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF6E065056705437210781
ST-LINK FW  : V2J29S7
Board       : --
Voltage     : 3.23V
SWD freq    : 4000 KHz
Connect mode: Hot Plug
Reset mode  : Software reset
Device ID   : 0x447
Revision ID : Rev Z
Device name : STM32L07x/L08x/L010
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M0+
BL Version  : 0xB2
 
0x08080000 : 00 00 00 00 00 00 00 00
 
0x08080C00 : 00 00 00 00 00 00 00 00

[Tesla DeLorean]

Would perhaps help not to carry multiple duplicate threads?

https://community.st.com/s/question/0D53W00002B9rrzSAB/how-to-write-bytes-to-flash-without-restart

[ADiet.1]

Yes that is right! Feel free to close this thread. I do not see that I can do it

[Aziz BRIGUI]

Hello @ADiet.1​ ,

The output you shared is similar to the previous one (first words of EEPROM1 and EEPROM2 are empty).

=> This doesn't show the inconsistent reads you are getting.

Please run the following CLI instructions with the flash erased and share the full log in an attached text file :

>STM32_Programmer_CLI -c port=SWD -blankcheck
>STM32_Programmer_CLI -c port=SWD -w32 0x08080000 0xAAAAAAAA
>STM32_Programmer_CLI -c port=SWD -w32 0x08080C00 0xBBBBBBBB
>STM32_Programmer_CLI -c port=SWD mode=NORMAL -r8 0x08080000 8 -r8 0x08080C00 8
>STM32_Programmer_CLI -c port=SWD mode=HOTPLUG -r8 0x08080000 8 -r8 0x08080C00 8

Thanks,

Aziz

[ADiet.1]

I guess the inconsistency is another ticket.

[Aziz BRIGUI]

Hi @ADiet.1​ ,

I mean the issue you talked about here on this post:

 

Aziz

[ADiet.1]

Maybe what I mean is the following:

Checking the flag BFB2 on UI and command line gives inconsistent results! I have no idea to know which one is correct!