On 20/11/2022 19:47, Nick Kraus wrote:
When trying to use a cmsis-dap debugger to capture SWO output, I think that the command to change baudrate doesn't send enough bytes to the debug probe. At line 663 of cmsis_dap.c (function cmsis_dap_cmd_dap_swo_baudrate()) it appears that 4 bytes are transferred for this command. I believe it should be 5 total (the command tag 0x19, then the 4-byte baudrate word), as described here <https://arm-software.github.io/CMSIS_5/DAP/html/group__DAP__SWO__Baudrate.html>.
Nick, your report looks correct. Could you please submit a fix to https://review.openocd.org ? For details see https://openocd.org/doc/doxygen/html/patchguide.html Thanks Tomas
