I have had some trouble like this, and it turned out to be a real stupid
error. I don�t know what software and what hardware you use for programming.
I use the Microchip PIC programmer and the MPLAB software, if you use the
same thing, please check out in your MPLAB IDE "OPTIONS" -> "DEVELOPMENT MODE"
"CLOCK" >>> this is got to be set to whatever you write into your ASM code.
You have to change this, whenever you change your clock settings in your assembler code,
or your PIC won�t work, it will program fine, nor error messages, but still won�t work.
Just a thought
Cheers
Friedel
At 09:33 a.m. 04/11/02 -0800, you wrote:
I have a little job going through ( big in terms of cash, but the small in terms of size). At it's heart is a pic 16f877 with a 32.768khz xtal which won't go.After initial hassle, and a phone call to the manufacturers, I now have 2x22pf caps from each end of the xtal to ground, (for ~12.5pF load) and a resistor in series with osc2 of 1.1k (CMAC suggested not less than 300 ohms and not more than 2K). Nothing. nada. I have tried lower & higher resistance and capacitance. I did swap pic and crystal for new parts at the same time. Any ideas? -- Regards, Declan Moriarty Applied Researches - Ireland's Foremost Electronic Hardware Genius A Slightly Serious(TM) Company Without the optimist, the pessimist wouldn't know how happy he isn't -- Author: Declan Moriarty INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
-- Author: Friedel Bruening INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
