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deepakomanna
Joined: 06 Mar 2007
Posts: 92
Location: Pune,India
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| Problem with 12F609 |
 Posted: Thu Dec 30, 2010 6:01 am |
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Dear All,
I am using 12F609 device & MPLAB 8.53ver. CCS Ver 4.073.
Logic is,
Whenever Power is made 'ON' PIN A2 should have to be High, then in the loop make PIN A2 HIGH & LOW depends upon PIN A0 & A1 Status.
On the testing Board once the Power is made 'ON' PIN A0 = High & PIN A1 = LOW.
I programmed this into device & put on the board. But When Power is made ON PIN A2 goes High & immediately becomes Low. Actually PIN A0 is High. I tried with 12F629. It works fine. Below is my source code.
| Code: |
#include <12F609.h>
#Fuses IOSC4,INTRC_IO,NOWDT,PUT,NOMCLR,PROTECT,BROWNOUT
//Internal RC Osc, no CLKOUT,No Watch Dog Timer,Power Up Time ON,Internal MCLR,Code Protect ON,Brownout detect ON,
//************** function prototypes *********************************************/
void init_CPU(void);
void init_CPU()
{
/**************** PORT SETTINGS ***********************/
OUTPUT_A(0X04); //Initially make o/p low
PORT_A_PULLUPS(0X00); // diable internal pullups,bcz external pull ups are connected.
SET_TRIS_A(0X13); //0001 0011 I/P = GP1,GP2,GP4 O/P = GP0,GP3,GP55.
SETUP_COMPARATOR(NC_NC_NC_NC); // comparator off
//SETUP_ADC(ADC_OFF);
//SETUP_ADC(VSS_VDD );
}
void main()
{
int16 i;
for(i=0;i<30000;i++); //Dealy TO Stable VDD
init_CPU();
OUTPUT_HIGH(PIN_A2);
while(TRUE)
{
while(INPUT(PIN_A0));
OUTPUT_LOW(PIN_A2);
while(INPUT(PIN_A1)== 0);
OUTPUT_LOW(PIN_A2);
}
}
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Please help me to solve this problem
_________________
Thank You,
With Best Regards,
Deepak. |
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deepakomanna
Joined: 06 Mar 2007
Posts: 92
Location: Pune,India
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| Solved:Problem with 12f609 |
| Posted: Fri Dec 31, 2010 4:46 am |
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With reference above post I made following changes in the code,
#byte ANSEL = 0x9F
#byte OSCTUNE = 0x90
with this change my problem is solved
Thanks to this forum !
_________________
Thank You,
With Best Regards,
Deepak. |
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