My $50 Seeeduino Film was instantly destroyed!!! Not very happy at all. No big deal, except if you plug in a target which uses 3 Volts only. The customer that resolved his case by using to change the'defaultbitclock' at line 319 of the nf for his ATtiny85: defaultbitclock = 50 The customer was able to compile the Blink.ino sketch file through the Arduino IDE in order to upload code to the Attiny85. To modify the “hardcoded” avrdude used with the Arduino IDE, go to your nf file and modify the bitclock rate variable. Programming via Arduino with a modified “nf” Certain Arduino IDE’s like v1.0.1 has the avrdude’s command line hardcoded so it cannot be “changed.” You can view this by using the IDE into verbose mode. Just open a command line interface and specify the -B50 in the avrdude command line in order to slow down the bitclock rate in the programmer (sck) to 50 microseconds. ![]() Most likely the original bitclock setting was too fast for the chip which would cause a failure to write/read the chip’s memory correctly. A customer had a similar issue and found it through some of the resources that I had provided him.
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