45 lines
991 B
C
45 lines
991 B
C
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#include <detpic32.h>
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void delay(unsigned int ms) {
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resetCoreTimer();
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while (readCoreTimer() < ms * 20000);
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}
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int main() {
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TRISBbits.TRISB4 = 1;
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AD1PCFGbits.PCFG4 = 0;
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AD1CON1bits.SSRC = 7;
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AD1CON1bits.CLRASAM = 1;
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AD1CON3bits.SAMC = 16;
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AD1CON2bits.SMPI = 15;
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AD1CHSbits.CH0SA = 4;
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AD1CON1bits.ON = 1;
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TRISB |= 0x000F;
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int c = 0;
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int factor = 1;
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while (1) {
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if (c++ >= 100 / factor) {
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c = 0;
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putChar('\r');
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printStr("DS=");
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char input = PORTB & 0x000F;
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int i = 0;
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for (; i < 4; i++) {
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putChar((input >> (3 - i) & 0x0001) + '0');
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}
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}
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AD1CON1bits.ASAM = 1;
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while (IFS1bits.AD1IF == 0);
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int total = 0;
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int *p = (int *)(&ADC1BUF0);
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for (; p <= (int *)(&ADC1BUFF); p+=4)
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total += *p;
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factor = (total / 16) / 205 + 1;
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delay(10);
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}
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return 0;
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}
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