Hello!
Most is in the title, but here are more details.
I have to update the firmware of a +/- 10 years old device based on F169.
As it was a very small scale development (4 devices + 1 in my lab), I still use
JTAG, the fuse is not blown.
The problem is that I cannot program it with an external power source. It
says that the device is unknown. (Yes, I have changed the power jumoer for
JTAG power vs battery power). The exat message is "Fatal error. Could not find
device (or device not supported). Session aborted."
Any idea of what may happen?
Thanks,
Pascal