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?

[waclawek.jan · Accepted solution]

This

 

should result in debugger connecting without reset. There should be a counterpart to this in the CLI too.

JW

[ADiet.1]

I tried that, but when I use the mode HOTPLUG I get incorrect results! The application returns bytes that are incorrect!!

[ADiet.1]

I asked for 8 bytes at two different addresses and when using HOTPLUG I got the results swapped (checked with GUI application). now it seems to be working. I have the feeling I cannot rely on these tools. What can I do?

[Pavel A.]

If you can reproduce inconsistent or wrong reads, please post a bug report here.

[waclawek.jan]

> I asked for 8 bytes at two different addresses and when using HOTPLUG I got the results swapped (checked with GUI application).

Show.

Also, try to read out a known piece of ROM memory, e.g. the device ID or Unique ID, and compare to expected values, and/or readout under reset.

JW

[ADiet.1]

I also noticed something else: I just did this command:

 .\STM32_Programmer_CLI.exe -c port=SWD -w8 0x08080000 0xAA 0x00 0x00 0x00 0x00 0x00 -w8 0x08080C00 0x00 0x00 0x00 0x00 0x00 0x00 -v

to write some bytes, and this command did NOT trigger a reset. I thought with "mode=Normal" it is resetting?

I just connected with the GUI version and disconnected, and that did trigger a reset. Maybe the version (2.12.0) I am using on the CLI has bugs?

[ADiet.1]

Example of incorrect results: Is that flag AE now on 0x08080000 or on 0x08080C00? Which output is the correct one?

PS C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>  .\STM32_Programmer_CLI.exe -c port=SWD mode=NORMAL -r8 0x08080000 8 -r8 0x08080C00 8
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.12.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF6E065056705437210781
ST-LINK FW  : V2J29S7
Board       : --
Voltage     : 3.24V
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 AE 00 00 00
 
0x08080C00 : 00 00 00 00 00 00 00 00
 
PS C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>  .\STM32_Programmer_CLI.exe -c port=SWD mode=HOTPLUG -r8 0x08080000 8 -r8 0x08080C00 8
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.12.0
      -------------------------------------------------------------------
 
ST-LINK SN  : 53FF6E065056705437210781
ST-LINK FW  : V2J29S7
Board       : --
Voltage     : 3.24V
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 AE 00 00 00

PS C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin> .\STM32_Programmer_CLI.exe -c port=SWD mode=NORMAL -r8 0x08080000 8 -r8 0x08080C00 8

   -------------------------------------------------------------------

            STM32CubeProgrammer v2.12.0

   -------------------------------------------------------------------

ST-LINK SN : 53FF6E065056705437210781

ST-LINK FW : V2J29S7

Board    : --

Voltage   : 3.24V

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 AE 00 00 00

0x08080C00 : 00 00 00 00 00 00 00 00

PS C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin> .\STM32_Programmer_CLI.exe -c port=SWD mode=HOTPLUG -r8 0x08080000 8 -r8 0x08080C00 8

   -------------------------------------------------------------------

            STM32CubeProgrammer v2.12.0

   -------------------------------------------------------------------

ST-LINK SN : 53FF6E065056705437210781

ST-LINK FW : V2J29S7

Board    : --

Voltage   : 3.24V

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 AE 00 00 00

[ADiet.1]

Just opened a bug report. Something is definitively not correct with the STM32CubeProgrammer application!

[Aziz BRIGUI]

Hello @ADiet.1​,

I can't reproduce the issue you're facing for now. However, could you please share the trace for the following CLI instructions ? Erasing the flash might change things depending on the application you're running. If this is the case, I will provide further details on what is happening.

>STM32_Programmer_CLI.exe -c port=SWD -e all
>STM32_Programmer_CLI.exe -c port=SWD mode=NORMAL -r8 0x08080000 8 -r8 0x08080C00 8
>STM32_Programmer_CLI.exe -c port=SWD mode=HOTPLUG -r8 0x08080000 8 -r8 0x08080C00 8

Your feedback will be very helpful.

Thanks,

Aziz