our problem,
using demo9s08qg8 board ,control led1, led2 when ever read from adc value its compare X value accorading led1 on,led2 off
i write sample program
#include <hidef.h> /* for EnableInterrupts macro */
#include <MC9S08QG8.h> /* include peripheral declarations */
#include <MC9S08QG8.h> /* include peripheral declarations */
#define LED1 PTBD_PTBD6
#define LED1_DDR PTBDD_PTBDD6
#define LED1_MASK PTBD_PTBD6_MASK
#define LED2 PTBD_PTBD7
#define LED2_DDR PTBDD_PTBDD7
#define LED2_MASK PTBD_PTBD7_MASK
#define ON 1
#define OFF 0
#define OFF 0
void ADC_Init(void)
{
// set up adc
ADCSC1=0x63; // all channels selected disables the ADC
ADCSC2=0x00; // select software trigger
ADCCFG=0x90; // bus clock
APCTL1=0x08;
//APCTL1 = 0x00; // Disable all pins as ADC }inputs
}
APCTL1=0x08;
//APCTL1 = 0x00; // Disable all pins as ADC }inputs
}
void main(void)
{
{
ADC_Init(); // Microcontroller initialization
for (;
{
__RESET_WATCHDOG(); // Kicks the dog
while(ADCSC1_COCO==1);
{
if (ADCRL > 0x00) // ATD Output => 0xBF
{
PTBDD_PTBDD6=1;
}
else
{
PTBDD_PTBDD7=1;
for (;
{__RESET_WATCHDOG(); // Kicks the dog
while(ADCSC1_COCO==1);
{
if (ADCRL > 0x00) // ATD Output => 0xBF
{
PTBDD_PTBDD6=1;
}
else
{
PTBDD_PTBDD7=1;
}
}// End While
}// Loop forever
}//end main(void)
}// End While
}// Loop forever
}//end main(void)
interrupt 19 void ADC_ISR (void)
{
ADCRL=ADCSC1_ADCH;
ADCSC1_AIEN=0;
}
pls check this coding correct or not
ADCRL=ADCSC1_ADCH;
ADCSC1_AIEN=0;
}
pls check this coding correct or not
