I'm using LoRa development board from Acsip based on STM32L073RZ micocontroller (ARM Cortex M0+ family). SWD pins on this board is as following: 3.3V, SWD(/A13), SWC(/A14), GND.
Initially swd connection was working fine, but after I flashed a simple blink program on pins A13 and A14, SWD is not detecting. Now I'm getting a message showing STLink USB communication error and STLink utility software got hanged.
Checked with cable replacement but no use. No problem with STlink device as it is working fine with other boards.
Is it the problem caused by flashing blink program? if so, how can I overcome it?