Author Topic: pic16f84a (Read 1150 times)

synchronous · « **on:** March 12, 2009, 06:09:38 PM »

anu po problem pag nagkocoruppt ung pic16f84a?

Philippine Electronics Forum · « **on:** March 12, 2009, 06:09:38 PM »

toasted siopao · « **Reply #1 on:** March 12, 2009, 06:10:57 PM »

Hmmm, kindly elaborate pls.

Philippine Electronics Forum · « **Reply #1 on:** March 12, 2009, 06:10:57 PM »

clarkent · « **Reply #2 on:** March 13, 2009, 12:16:52 PM »

anong ibig sabihin mo ng nagccorrupt?

yung parang mata na kumukurap?nyahaha

joke lang.

ang ibig sabihin mo ba ay pagbinuburn(pinoprogram) mo na ang pic nag eerror sya?

kasi kung ganyan ang case, pwedeng busted na yung pic or sira din ang programmer mo. ako kasi dalawa ang ginagamit kong programmer e. minsan akala ko sira na yung pic ko, pero pag tinatry ko yung isang programmer ok nmn. so, it's either sira ang pic or may deperensya ang programmer mo.

Philippine Electronics Forum · « **Reply #2 on:** March 13, 2009, 12:16:52 PM »

SpongeBob · « **Reply #3 on:** March 13, 2009, 03:50:54 PM »

anong corrupt? sa gobyerno ba?

... baka may mga floating pins o kaya kulang sa bypass capacitors kaya unstable operation

Philippine Electronics Forum · « **Reply #3 on:** March 13, 2009, 03:50:54 PM »

clarkent · « **Reply #4 on:** March 13, 2009, 04:27:29 PM »

^yup pwede rin yan ang reason kung nakalagay na mismo sa circuit ang pic.

Philippine Electronics Forum · « **Reply #4 on:** March 13, 2009, 04:27:29 PM »

Otrebron · « **Reply #5 on:** April 03, 2009, 09:46:59 AM »

I agree dun sa floating pins and bypass capacitor for filtering. I think kong already programmed na yung PIC tapos na corrupt, pwedeng ang dahilan ay noise or some voltage spikes na nagtrigger sa MCLR pins. Yun ang kelangan mo linisin dagdag ka ng filter caps

subzer0 · « **Reply #6 on:** April 03, 2009, 10:16:08 AM »

Quote from: synchronous on March 12, 2009, 06:09:38 PM

anu po problem pag nagkocoruppt ung pic16f84a?

san ba located yung PIN4(MCLR/Vpp)?baka kasi may nagtitrigger dyan na higher than 12V kaya na eerase yung laman na hex file(example malapit sya sa 12V power rail).kung sa programmer naman ang minsan kasi like jdm programmer wala syang external source and pagmalapit na malapit yung PIC IC saka lang ma reread at ma po program ng maayos.unlike sa ICD2 na may external source kahit mahaba ng kaunti ok parin yung programming ng PIC using ICSP.

clarkent · « **Reply #7 on:** April 03, 2009, 02:02:32 PM »

^ sa normal operation hindi po ata pwedeng lumagpas sa VDD ang pumapasok sa MCLR. dapat nga may pull up resistor pa e. para lagi syang high na high.yung high na may tama. ahihi

Philippine Electronics Forum · « **Reply #7 on:** April 03, 2009, 02:02:32 PM »

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