Post by thread:[PIC] Re: : Re: [PIC]: Wisp628 and internal MCLR.

On 7/28/05, Wouter van Ooijen <spam_OUTwouterTakeThisOuTvoti.nl> wrote: > > Wouter, > > What is the underlying problem here? > > Is it the program (in the target PIC) that will start-up before > > programming (before MCLR to 13V) ? > > I don't know for sure, but I think so. Then even if raising MCLR to 13V > starts programming mode the PC will not be at 0000. A compareable > problem arises on Vdd-before-Vpp mode when the MCLR rises too slow. > > > Assuming I got that right, would prior erasing or disabling the > > oscillator solve the problem? > > Mayby, but the problem is entering programming mode and you need to do > that before you can change the configuration word! Why are people searching solutions in software while the wisp have anyway a lot of free pins for a Vdd driven scheme. The problem was solved before even appears. Vasile