Can anyone advise please?
I written a simple prog for an 18F1320 using an RC network (62K+100pF) giving an fosc of approx 100KHz. I've flashed a device and the program runs perfectly with the correct fosc/4 (25KHz) waveform on RA6/OSC2.
Now, if I replace the 18F1320 with a MPLAB ICE2000, PCM18XJO and DVA18XP180 and execute from within MPLAB IDE (V7.31), RA6/OSC2 has a frequency of approx 1MHz with ringing on the leading edge.
It seems obvious that I haven't got the emulation hardware set up correctly. I think I can work around this by setting the config bit to EC mode and clocking externally but I'd rather use my RC network.
Any ideas? Thanks, Simon