I'm have Atmel Studio 7, a J-Link EDU (configured for SWD) and a ATSAMD51G19A on an Adafruit ItsyBitsy M4 Express and I get a read failure each time I try to read the fuses in the Device Programming dialog. I can read the device signature and the flash just fine, but when I try read the fuses, it succeeds reading the SW0_WORD_x and TEMP_LOG_WORD_x words, but it fails to read the USER_WORD_x words, giving the error:
Memory read failed at offset 0x804008
This is really weird, because I can read that memory range without problem using the Segger J-Link Commander. Everything in the USER_WORDS is FF, which I assume is default.
Anybody know what might be causing this?
It looks like I'm not the only user seeing this problem... https://www.avrfreaks.net/forum/...