23 lines
691 B
C
23 lines
691 B
C
#include <LPC17xx.h>
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unsigned long result, y; // global variable for ADC result
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int main(){
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LPC_PINCON -> PINSEL3 = 3 << 28; // P1.30 function 3
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LPC_SC -> PCONP = 1 << 12; // power control
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// ADCR
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LPC_ADC -> ADCR = 1 << 4 | 1 << 16 | 1 << 21 ; // ADC4, burst mode, ADC enable, start now
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// 1 << 24 instead of 1<<16 for non burst
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LPC_ADC -> ADINTEN = (1 << 4); // Interrupt (4th channel to be enabled)
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NVIC_EnableIRQ(ADC_IRQn); // Nested Vector Interrupt Controller
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while(1){} // infinite delay
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}
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void ADC_IRQHandler(void)
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{
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result = (LPC_ADC -> ADGDR & (0xFFF << 4) >> 4 ); // Read 12-bit ADC result
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y = (LPC_ADC -> ADDR4 & (0xFFF << 4) >> 4); // Done bit reset
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}
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