Gast
#1849979
Hallo zusammen, Habe diese Beitrag auch in Microchip Forum abgesendet, und wollte auch ihre Meinung, da die Diskussionen hier bei diesem Forum sind immer sehr produktiv. Sorry für den Englischen Text, aber iht könntet natürlich auf Deutsch antworten! "I am trying to load a very simple program in order to test the first programmation of a PIC24FJ128GA108, but have had no success. All connections are perfectly OK. PGC and PGD where checked with an oscilloscope and were correct. Self test is OK, but ICD2 can not even read the target device. I tested the ICD2 with an older target board (with a PIC16F mounted) and read was sucessful. Also checked with a 'scope the 32-bit code sent by ICD2 for ICSP initialization, it was also OK. I made a trial with an older version of MPLAB, but also didn´t work. That means MPLAB and ICD2 are working properly and the problem is with my target board/PIC24F. Checking the clock signal at the 8 MHz crystal, one can observe that clock signal is not stable, looks like the PIC is resetting itself constantly and that reflects the into the clock signal. I am using PGCE3 and PGCD3 pins for programming. Could this affect the programming, or does PIC24F "listen" ICSP commands in all 3 ports? Is there any specific combination of Configuration Bits in order to the first programmation work? Is there another way to test if the PIC is "burned"? Anyone here had a similar problem or have any hints to troubleshoot this? I thank you really much for your helpfulness!" Martin Horst