I have a device which I have flashed numerous times over this past week. I recently implemented a new debug connection (to replace my hack solder job), and was able to flash without issue.
Fast forward a few hours - I am now continually getting the "No Cortex-M SW Device Found" error. I think of 40+ attempts, two were able to successfully flash. I have verified all my connectivity.
What really gets me is the inconsistency - why would ~2 of 40 attempts work, but the other 38 fail? Any ideas on how to fix this issue?
Thanks in advance!