Hi AllFirst of all, Sorry for my bad english. Here's my problemI've made a COMIII, fsdip and fscom boards. I've been able to program all PIC's but... I made Fsled board, installed with new cable (cable was faulty but I realized it a bit too late. Ok, I was not able to program fs-led, tried to progamm some of the disps once again - without success.Ok then I found that the cable was faulty (shortened two wires). I installed good cable (between com and fsled) changed PIC, and... success all was ok. Then I tried to program other pic's - no way they seemed to be death. I've bought new pic-s - they can't be flashed in any way on any board now. It's strange, I've tested voltages there is a + 4.9 on pins 12 and 13 and 13.5 v on pin 4-th and when I turn off them on fsrouter, they have 0 as required. Old PIC's can be read but I don't want to test if I can write them. Any Ideas ?RegardsPawel

The cabel connecting FScom to serial port has to be short for flashing purposeKeep the lenght about 10cm and try flash again

Hi, Many thanks, it works now with short cable! But I shortened two cables Computer -> COM and COM -> any other PCB with PIC. But I don't understand why it worked with a long cables also !RegardsPawel

The short cabel has to be from Fscom to rs232 com port only for flashing purpose --after that you can replace for longer oneGlad thats helped