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Issue with OCD

BenDa
Associate II

Every time I hit "RUN" to send the code to my board I get the following annoying error. The board still receives the code but I want understand why this is happening and how to solve this problem.

I am programming a NUCLEO f303Re board using STM32CubeIDE v1.15 on a MacOs with Ventura.

This error shows up no matter the code that I send to the board.

Here is the Error :

Open On-Chip Debugger 0.12.0-00029-gf77e7cb03 (2023-12-15-13:29) [https://github.com/STMicroelectronics/OpenOCD]

Licensed under GNU GPL v2

For bug reports, read

http://openocd.org/doc/doxygen/bugs.html

Info : Listening on port 6666 for tcl connections

Info : Listening on port 4444 for telnet connections

Info : STLINK V2J44M29 (API v2) VID:PID 0483:374B

Info : Target voltage: 3.277318

Info : Unable to match requested speed 8000 kHz, using 4000 kHz

Info : Unable to match requested speed 8000 kHz, using 4000 kHz

Info : clock speed 4000 kHz

Info : stlink_dap_op_connect(connect)

Info : SWD DPIDR 0x2ba01477

Info : [STM32F303RETx.cpu] Cortex-M4 r0p1 processor detected

Info : [STM32F303RETx.cpu] target has 6 breakpoints, 4 watchpoints

Info : starting gdb server for STM32F303RETx.cpu on 3333

Info : Listening on port 3333 for gdb connections

Info : [STM32F303RETx.cpu] external reset detected

Info : accepting 'gdb' connection on tcp/3333

[STM32F303RETx.cpu] halted due to debug-request, current mode: Thread

xPSR: 0x01000000 pc: 0x080005e0 msp: 0x20010000

Info : Unable to match requested speed 8000 kHz, using 4000 kHz

Info : Unable to match requested speed 8000 kHz, using 4000 kHz

Info : device id = 0x10036446

Info : flash size = 512 KiB

Info : accepting 'gdb' connection on tcp/3333

[STM32F303RETx.cpu] halted due to debug-request, current mode: Thread

xPSR: 0x01000000 pc: 0x080005e0 msp: 0x20010000

Info : Unable to match requested speed 8000 kHz, using 4000 kHz

Info : Unable to match requested speed 8000 kHz, using 4000 kHz

[STM32F303RETx.cpu] halted due to debug-request, current mode: Thread

xPSR: 0x01000000 pc: 0x080005e0 msp: 0x20010000

Info : dropped 'gdb' connection

shutdown command invoked

Info : dropped 'gdb' connection

4 REPLIES 4
Andrew Neil
Evangelist III

Does your code put the microcontroller into sleep and/or deactivate the SWD lines?

I don't think so.

This happens even if send the code to the board without configuring anything in the .ioc file and without modifying the autogenerated code.

Putting the microcontroller into sleep (possibly also deactivating the SWD lines) would be done in user code rather than autogenerated stuff.

 

EDIT:

What if you try just a simple "blinky" example?

Sincerily I am kind of a newbie and I wouldn't even know how to put the microcontroller into sleep or how to deactivate the SWD lines.

I get the error message even with simple blinky stuff.