38 lines
905 B
C
38 lines
905 B
C
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#include <detpic32.h>
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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 = 0;
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AD1CHSbits.CH0SA = 4;
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AD1CON1bits.ON = 1;
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IPC6bits.AD1IP = 2; // configure priority of A/D interrupts
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IEC1bits.AD1IE = 1; // enable A/D interrupts
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IFS1bits.AD1IF = 0; // clear A/D interrupt flag
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TRISD &= 0xF7FF; // Configure RD11 as output
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EnableInterrupts();
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AD1CON1bits.ASAM = 1;
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while (1) LATDbits.LATD11 = 0;
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}
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void _int_(27) isr_adc(void) {
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volatile int adc_value;
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adc_value = ADC1BUF0;
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IFS1bits.AD1IF = 0;
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AD1CON1bits.ASAM = 1;
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LATDbits.LATD11 = 1;
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}
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// Conversão A/D: 3340 ns
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// Conversão + latência + prologo: 4020 ns
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// Epilogo: 632 ns
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//
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// Overhead total: 4020 - 3340 + 632 = 680 + 632 = 1312 ns
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