How to change frequency of ST-Link/V3 SWD in STM32CubeIDE

[hansd56]

I have problems programming internal flash of an STM32F7 in SWD mode at 24000 KHz with ST-Link/V3. Verification fails. JTAG is ok but it adjusts itself to 21333 KHz. If I use the standalone CubeProg I have an option to reduce the Frequency (even though in big steps 24000->8000??). 24000 fails and 8000 is ok.

Where can I find a similar option in STM32CubeIDE?

[Markus GIRDLAND]

The ST-LINK GDB Server will only work with 4000 KHz for now, there's a fix coming for V3 but I'm not sure as to when.

If you want to use SWD at 24000 KHz then you would need to use the OpenOCD debugger instead.

Debug coniguration -> Debugger tab -> Debug Probe -> ST-LINK (OpenOCD) -> Show generator options... -> Frequency -> 24 MHz

[RRoon]

Hi Markus,

I have the same problem as @hansd56​ . CUBEIDE fails verification. It runs STLINKV3 at 24MHz.

I tried CUBE Programmer at 24000 and it failed also. I then changed it to 8000 and it works fine.

However I cannot slow the clock in CUDBEIDE ?

When is this going to be fixed ?

I am already suffering many problems due to CUBEIDE/TouchGFx integration problems.!!!

[hansd56]

Hi Markus, not sure what you are saying. Look at log from STM32CubeIDE.

Waiting for debugger connection...

Debugger connected

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

                      STM32CubeProgrammer v2.1.0                 

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

Log output file:  C:\Users\hansd\AppData\Local\Temp\STM32CubeProgrammer_a13612.log

ST-LINK SN : 0038001A3137510439383538

ST-LINK FW : V3J3M2B3S1

Voltage    : 3.30V

SWD freq   : 24000 KHz

Connect mode: Under Reset

Reset mode : Hardware reset

Device ID  : 0x449

Device name : STM32F74x/STM32F75x

Flash size : 1 MBytes

Device type : MCU

Device CPU : Cortex-M7

Memory Programming ...

Opening and parsing file: ST-LINK_GDB_server_a13612.srec

 File         : ST-LINK_GDB_server_a13612.srec

 Size         : 397724 Bytes

 Address      : 0x08000000

Erasing memory corresponding to segment 0:

Erasing internal memory sectors [0 5]

Download in Progress:

File download complete

Time elapsed during download operation: 00:00:05.268

Verifying ...

Error: Data mismatch found at address 0x08027804 (byte = 0x7B instead of 0x93)

Error: Download verification failed

Encountered Error when opening C:\ST\STM32CubeIDE_1.0.0\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_1.0.0.201904021149\tools\bin\STM32_Programmer_CLI.exe

Error in STM32CubeProgrammer

If I do the same with the standalone STM32Cube Programmer I have the option to select a slower frequency and it works. The same option is missing in STM32CubeIDE.

[hansd56]

Hi Markus, Thanks for your reply. I had another go at this. As it looks like OCD allows SWD speed to be set whereas GDB assumes 24000KHz with ST-Link V3. Do you know why it goes from 24000KHz to 8000KHz and nothing in between?