When trying to program the efuse byte on an AT90PWM3B, I get the following
error:
avrdude: reading input file "0x49"
avrdude: writing efuse (1 bytes):
Writing | | 0% 0.00s
***failed;
Writing | ################################################## | 100% 0.06s
avrdude: 1 bytes of efuse written
avrdude: verifying efuse memory against 0x49:
avrdude: load data efuse data from input file 0x49:
avrdude: input file 0x49 contains 1 bytes
avrdude: reading on-chip efuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
0x49 != 0x01
avrdude: verification error; content mismatch
I've checked the lock bits, which are unlocked, and confirmed that I can
successfully write lfuse. The efuse always reads back as 0x01, which
doesn't seem right, as I've never modified it and the datasheet default is
0xF9. I'm using a USBTinyISP programmer.
Am I doing something stupid or is there something wrong with avrdude here?
- Matthew
_______________________________________________
AVR-chat mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/avr-chat
