Hi all I need help with 12c508, i am loosing it


I have a 12f508 and trying initialize it
every think works except the GP2 pin
i need it to work as an out put. but it just doesnt work . I have
tried everything. I think it is somthing to do with the timer0 but i
dont know what.
anyways this is how i have initialized it.
#include
#fuses INTRC,NOWDT,NOPROTECT,NOMCLR
#use delay(clock = 4000000)
#use fast_io(B)
void main()
{
int8 turnoffdelay = shutdwn_delay_min; //shutdown delay variable
int8 MainPower_off;
int1 pinstatus; //stores the GP0 status
int1 toggle;
set_tris_B(0x29);
output_B(0x00);
PLS HElp I WILL REALY APRECIATE IT
Thanks Nadeem
Reply to
Nadeem
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This is not the correct newsgroup.
But anyway, you will need to set the OPTION register. See the datasheet.
Also note that the 12C508 is not the same as the 12F508 in every respect (you refer to both).
Best regards, Spehro Pefhany
Reply to
Spehro Pefhany
snipped-for-privacy@acuraembedded-dot-com.no-spam.invalid (Nadeem) wrote in news: snipped-for-privacy@corp.supernews.com:
Your main needs to end with an infinite loop
Scott
Reply to
Scott Seidman
I don't see anything in your code that sets the option register. As I recall, it defaults to use GP2 as a clock source on reset. This would make it an input pin and disregard the TRIS bits.
Mark Walsh
Reply to
Mark

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