ELEKTOR FORUMS

Judging by the replies to the JP1 questions, it seems that it may be possible to program the chip in place.

If this is the case, could you please provide the instructions on how to program the chip without removing it from the circuit? My programmer does not have a socked for the T89C51CC02UA type chips and if the chip can be re-programmed in line/place, it will be very useful when you release updates.

Short J1 pins together, apply power then run Atmel FLIP program. Load your HEX file via the serial port. Comms at 57600 8N1.