Yes, brownout detect is off. But good idea, tho. --Bob redtock8@dxtron wrote: > Is brownout detect off? > ================================= > DXTron Technology Inc > Atlanta, Ga > PCB Assembly > TH and SMT > PCB Design > PIC Chip Programming > Systems Design and Programming > ================================= > redrock8@dxtron.com > www.dxtron.com > ================================= > ----- Original Message ----- From: "Bob Axtell" > To: "Microcontroller discussion list - Public." > Sent: Thursday, March 10, 2005 1:04 PM > Subject: [EE] Problem With ICD2: Strange Effects > > >> I'm trying to debug a complex PCB based on LF88 >> running at 3.5V. For the last 6 weeks, bringing up >> the earlier code, no problems were discovered at all. >> A 3 week lull ensued, caused by external issues. Now >> that they are resolved, I have returned to it, only to >> discover than the ICD2 is acting very strangely. >> >> 1. The ICD2 seems to work perfectly- no errors are >> posted to MPLAB7.0 at all. >> >> 2. The LF88 acts like it is operating correctly. The >> PA and PB registers act in MPLAB as if they are >> working correctly (MPLAB shows them correctly >> changing state). But get this: the actual LF88 itself >> has no pin state changes at all!!! With a scope attached, >> not an edge transition occurs! >> >> 3. I have checked for ICD2 debug PGM area overruns, >> for protected register overwrites, everything I can think of. >> >> I have one more ICD2 I can switch to, but it is RS232 only. >> Before I rip up the station, does anybody have any ideas? >> >> -- >> >> I am running MCs ICD2, short (6") cable, external GND, >> on a 1200Mhz 256Mb Win2K system. >> >> --Bob > > -- Note: To protect our network, attachments must be sent to attach@engineer.cotse.net . 1-866-263-5745 USA/Canada http://beam.to/azengineer -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist