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Input through serial port causes random characters when in debug mode (CMSIS-DAP as debugger)

Ashok prajapati

Hi,

I am working FRDM K64F and getting some issues when I use CMSIS-DAP as debugger.
I am using serial port for input and output strings. Output is as expected but
when input characters they are very random. However when I am not in debug mode
things work just fine. I feel some issue in CMSIS-DAP settings but not sure what.

For example, I entered "dir" and "d\0\0\0rd\0rr".

CMSIS-DAP Details:

Serial No. 02400226392f4e4e0000000000000000
FW Version: 1.0
Core Clock: 120Mhz
Device Name: ARM CoreSight SW-DP

Please help...thanks in advance.