?? adccont.c
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/* Author : ADI - Apps www.analog.com/MicroConverter
Date : October 2003
File : ADCcont.c
Hardware : ADuC842
Description : Performs ADC conversions in continuous mode at a
rate of 104KSPS (assuming an 2.097152 Mclk).
Outputs ADC results via UART. Continuously
flashes LED.
All rate calculations assume an 2.097152MHz Mclk. */
#include<stdio.h>
#include<aduc842.h>
sbit LED = 0x0B4;
void adc_int() interrupt 6{
printf("%02BX%02BX\n",ADCDATAH,ADCDATAL);
return;
}
void DELAY(int length);
void main(void)
{
int CHAN = 0;
T3CON=0x083;
T3FD= 0x02D;
SCON = 0x052;
/* PRECONFIGURE... */
ADCCON1 = 0x0AC; // power up ADC /8 + 4 acq clock
ADCCON2 = CHAN ; // select channel to convert
/*LAUNCH CONTINUOUS CONVERSIONS...*/
EA = 1; // enable interrupts
EADC = 1; // enable ADC interrupt
CCONV = 1; // begin continuous conversions
/* CONTINUE WITH OTHER CODE... */
for (;;)
{
DELAY(20);
LED ^= 1; // blink (complement) the LED
}
// the micro is free to continue with other tasks (flashing the LED in
// this case) while the ADC is continuously converting, and results
// are being handled by the ADC interrupt service routine.
}
void DELAY(int length)
{
while (length >=0)
length--;
}
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