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SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world. And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download (registration required) various documents highlighting:

System Workbench for STM32

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Newest OpenOCD fails with STM32L0

Posted by pmusz on 2020-04-27 21:39

Hello,
I’ve serious problem with simple, custom evalboard with onboard STM32L011. Here’s my log:

Open On-Chip Debugger 0.10.0+dev-00021-g524e8c8 (2019-04-12-08:33)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
srst_only separate srst_nogate srst_open_drain connect_assert_srst
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 8000 kHz
adapter_nsrst_delay: 100
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : clock speed 8000 kHz
Info : STLINK v2.1 JTAG v36 API v2 M26 VID 0x0483 PID 0x374B
Info : using stlink api v2
Info : Target voltage: 3.257596
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
Info : Stlink adapter speed set to 4000 kHz
Info : STM32L011F4Px.cpu: hardware has 4 breakpoints, 2 watchpoints
Info : Listening on port 3333 for gdb connections
Info : accepting ‘gdb’ connection on tcp/3333
target halted due to debug-request, current mode: Thread
xPSR: 0xf1000000 pc: 0x1ff00288 msp: 0x200007a8
STM32L0: Enabling HSI16
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
Info : Stlink adapter speed set to 4000 kHz
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
adapter speed: 4000 kHz
Info : Device: STM32L0xx (Cat.1)
Info : STM32L flash size is 16kb, base address is 0x8000000

I’ve just reinstalled SW4STM32 to newest version (already 2.9) - of course it isn’t hardware-related problem or incorrect wiring (this board was earlier used without doubt with STM32F0). I’m using built-in ST-link on Nucleo board, but standalone ST-link doesn’t work too.

I’ve read some topics about problems with OpenOCD and STM32L0 and L4 - but, what’s interesting - brand new Nucelo for L432 works fine.

Any ideas what’s the cause of this problem?
Thank you in advance!

Regards,
Przemek

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Posted by tarek bouchkati on 2020-04-27 21:50 Tunisia

Hi Przemyslaw ,

the log you provided does not contain any error information. and you haven’t described the unexpected behavior.
Could you please give more accurate problem description ?

The only hint that I can give you based on this log, is that your MCU is booting from system memory (bootloader) :

target halted due to debug-request, current mode: Thread
xPSR: 0xf1000000 pc: 0x1ff00288 msp: 0x200007a8

So maybe you need to check the boot pins / option bytes.
And if you have a flash programming issue, please provide a complete log with the error message.

Note: the latest version of System Workbench is already one year old, so please consider using a new fresh IDE like STM32CubeIDE

Kindly
Tarek

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Posted by pmusz on 2020-04-27 22:12

Hi Tarek,
thank you for fast reply. After printing line:

Info : STM32L flash size is 16kb, base address is 0x8000000

there is a long delay (maybe 1 min?) and after that only two lines appear in console:

Error: failed erasing sectors 0 to 0
Error: flash_erase returned -5

and “Terminate faliled” as well as:

Error in final launch sequence
Failed to execute MI command:
load /media/DATA/ARMworkspace/temp_test/Debug/temp_test.elf

Error message from debugger back end:
Error erasing flash with vFlashErase packet
Error erasing flash with vFlashErase packet

alerts are open.

I’ve checked BOOT0 pin - it’s ok (0V).
Also I’ve already installed newest CubeIDE - no change.

Regards,
Przemek

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