Greeting all, been busy.

I have connected a 16f871 clko to a 16f870 clki, all seemed well.
Connected the 870 clko to a 16f818 clki, as per:

Method 2.

Connect OSC2 from the PIC1 with the Crystal, to OSC1 of PIC2 without. PIC2's OSC2 connects to PIC3's OSC1. PIC3's OSC2 connects to PIC4's OSC1... ad infinitum... Disadvantage: If one of the PICs failed, all the PICs down the chain from that PIC will cease operating also.


Results not so good. The 818 is not running, and have two more pics to drive.

O-scope shows a dc offset and diminishing low side, as it goes down the line.

Has anyone any ideas???

Thanks