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Zephyr project on STM32

   Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
  • Install host dependencies.
  • Import toolchain and SDK.
  • Create, configure, build and manage apps.
  • Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench

System Workbench for STM32


Openocd: "failed to get read pointer"

IDE: System Workbench for STM32

Bildschirmfoto 2019 02 02 Um 23.57.20


Debug or Run from inside SW4STM32:

Open On-Chip Debugger 0.10.0-dev-00015-gaaf1808 (2018-11-13-12:57)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.htmlQuestion
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_nsrst_delay: 100
adapter speed: 1800 kHz
Info : clock speed 1800 kHz
Info : STLINK v2.1 JTAG v32 API v2 M22 VID 0x0483 PID 0x374B
Info : using stlink api v2
Info : Target voltage: 3.247525
Info : Stlink adapter speed set to 1800 kHz
Info : STM32F767ZITx.cpu: hardware has 8 breakpoints, 4 watchpoints
Info : accepting ‘gdb’ connection on tcp/3333
Info : Stlink adapter speed set to 1800 kHz
adapter speed: 1800 kHz
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x0805a838 msp: 0x2007c000
Info : Stlink adapter speed set to 4000 kHz
adapter speed: 4000 kHz
Info : flash size probed value 2048
Info : flash size probed value 2048
Info : Stlink adapter speed set to 1800 kHz
adapter speed: 1800 kHz
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x0805a838 msp: 0x2007c000
Info : Stlink adapter speed set to 4000 kHz
adapter speed: 4000 kHz
Info : Padding image section 0 with 8 bytes
Error: failed to get read pointer
Error: timed out while waiting for target halted
target halted due to debug-request, current mode: Handler HardFault
xPSR: 0x01000003 pc: 0x0805a5e4 msp: 0x2007bfe0
Error: error waiting for target flash write algorithm
Error: error writing to flash at address 0x08000000 at offset 0x00040000
Info : Stlink adapter speed set to 1800 kHz
adapter speed: 1800 kHz
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x0805a838 msp: 0x2007c000

Happened with a NUCLEO-F767ZI development board until yesterday.
I have a bunch of other boards: no problem.
I can flash with STM32CubeProgrammer and from inside my app on the board.
But it’s annoying not being able to debug the board.
Thank you for any help.

Found the problem:
Independent Watchdog (IWDG) was set to hardware mode in the chip.
Solution:
Disable it in the option bytes in the chip.

Sorry for the inconvenience, hopefully helpful if someone else has the same situation.