there is a (.01v 1HZ ripple + 5V) when powering up on the usb, but no prob on the LM7805(high supply),
also I should add that the RFreceiver still lights up red(for when the transmitter is off) and turns green(when TX is on).
EDIT....: I broke out the scope on to the data line, I watched PORTD.1 and detected the pulse on both supplies with NO DIFFERENCE, so it turns out that it is the PIC that is not working on the high source, The pulse on the scope never changed @portD.1 when i enabled the high supply, but the PIC18F4620, does not detect, ( it is not locking up, is running other subroutines, and starts detecting again when high supply disables)???
DURRING my test, i powered up pickit, detected high on pinD.1(TXoff), an a pulse(TXon), before and after enabling/disableing high supply
DURRING powering high supply everything works, detects high on pinD.1(TXoff), but when i switch TXon it should force low and starts the pulse, but instead it drops low properly but then cannot go high again, even when TX is off again, IT cannot go high again until high supply is switched off???
sorry for the headaches, but i' v had this problem for a while, on several other circuits,