Hi,
I am working to run and debug some zephyr-rtos sample code for M4 core in stm32mp157c-dk2 board. I could manage to compile my code successfully but when i try to load firmware.elf for debugging cortex-M4 core independent of cortex-A7 core i get the following error message. I have also tried with A7 core booted up but the same error message is shown on debug console of platformIO.
I am using platformIO on vscode and st-link with OpenOCD for debugging
undefinedC:\Users.platformio\packages\toolchain-gccarmnoneeabi\bin\arm-none-eabi-gdb.exe: warning: Couldn’t determine a path for the index cache directory.
Reading symbols from C:\Users\Documents\PlatformIO\Projects\test4_mp1.pio\build\disco_mp157c_dk2\firmware.elf…
PlatformIO Unified Debugger → Redirecting...
PlatformIO: debug_tool = stlink
PlatformIO: Initializing remote target…
xPack OpenOCD, x86_64 Open On-Chip Debugger 0.11.0-00155-ge392e485e (2021-03-15-16:44)
Licensed under GNU GPL v2
For bug reports, read
OpenOCD: Bug Reporting
srst_only srst_pulls_trst srst_gates_jtag srst_open_drain connect_deassert_srstInfo : tcl server disabled
Info : telnet server disabled
Info : STLINK V2J37M26 (API v2) VID:PID 0483:3752
Info : Target voltage: 3.177996
2
Info : Unable to match requested speed 5000 kHz, using 4000 kHz
Info : clock speed 4000 kHz
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Info : stm32mp15x.cm4: hardware has 6 breakpoints, 4 watchpoints
Info : stm32mp15x.cpu0: hardware has 6 breakpoints, 4 watchpoints
Info : stm32mp15x.cpu0 rev 5, partnum c07, arch f, variant 0, implementor 41
Info : stm32mp15x.cpu0: MPIDR level2 0, cluster 0, core 0, multi core, no SMT
Info : stm32mp15x.cpu1: hardware has 6 breakpoints, 4 watchpoints
Info : stm32mp15x.cpu1 rev 5, partnum c07, arch f, variant 0, implementor 41
Info : stm32mp15x.cpu1: MPIDR level2 0, cluster 0, core 1, multi core, no SMT
Info : starting gdb server for stm32mp15x.cpu0 on pipe
Info : starting gdb server for stm32mp15x.cm4 on pipe
Info : accepting ‘gdb’ connection from pipe
Info : New GDB Connection: 1, Target stm32mp15x.cpu0, state: halted
Info : accepting ‘gdb’ connection from pipe
Info : New GDB Connection: 2, Target stm32mp15x.cm4, state: halted
4
Error: GDB missing ack(2) - assumed good
undefined debug reason 8 - target needs reset
8Error: GDB missing ack(2) - assumed good
SystemInit () at C:\Users.platformio\packages\framework-zephyr-hal-stm32\stm32cube\stm32mp1xx\soc\system_stm32mp1xx.c:149
149 CLEAR_REG(EXTI_C2->IMR3);
2
Error: GDB missing ack(2) - assumed good
15
Warn : negative reply, retrying
.pioinit:14: Error in sourced command file:
Reply contains invalid hex digit -72
i am not able to decipher what the error actually means. May i request anyone to suggest how to get the debug run for cortex M4 core in STM32MP157c-dk2 board? Any pointer or direction to look into will be very helpful.
