| 1,27 → 1,52 |
|---|
| #include "maindefs.h" |
| #include "adc.h" |
| #include <adc.h> |
| |
| void adc_init() { |
| static ADC_DATA adc_data; |
| |
| void ADC_Init(unsigned char TAD, unsigned char FOSC) { |
| TRISAbits.TRISA0 = 1; |
| |
| OpenADC(ADC_FOSC_64 & ADC_RIGHT_JUST & ADC_0_TAD, |
| ADC_CH0 & ADC_INT_ON & ADC_REF_VDD_VSS, 0, |
| ADC_1ANA); |
| TRISAbits.TRISA1 = 1; |
| TRISAbits.TRISA2 = 1; |
| |
| adc_data.last_channel = 0; |
| adc_data.result = 0; |
| |
| ADCON0bits.VCFG1 = 0; // VRef- = AVss |
| ADCON0bits.VCFG0 = 0; // VRef+ = AVdd |
| ADCON1bits.ADFM = 1; // Right justified result |
| ADCON1bits.ADCAL = 1; // Calibrate A/D |
| ADCON1bits.ACQT = TAD; |
| ADCON1bits.ADCS = FOSC; |
| ADCON0bits.ADON = 1; // Enable A/D module |
| |
| ADCON0bits.GO_DONE = 1; // Start calibration |
| while (ADCON0bits.GO_DONE); // Wait for calibration to finish |
| PIR1bits.ADIF = 0; // Clear the IF flag |
| ADCON1bits.ADCAL = 0; // Normal A/D operation |
| |
| PIE1bits.ADIE = 1; // Enable A/D interrupt |
| |
| } |
| |
| void adc_start() { |
| ConvertADC(); |
| void ADC_Start(unsigned char channel) { |
| adc_data.last_channel = channel; |
| ADCON0bits.CHS = channel; // Set A/D channel |
| ADCON0bits.GO_DONE = 1; // Start A/D conversion |
| } |
| |
| void adc_stop() { |
| CloseADC(); |
| void ADC_Stop() { |
| ADCON0bits.ADON = 0; // Disable A/D module |
| } |
| |
| void adc_interrupt_handler() { |
| // Sends the ADC value to main() |
| unsigned int ret; |
| unsigned char length; |
| ret = ReadADC(); |
| length = 2; |
| // MQ_sendmsg_ToMainFromLow(length, MSGTYPE_ADC_NEWVALUE, &ret); |
| void ADC_Interrupt_Handler() { |
| adc_data.result = ADRES; |
| } |
| |
| char ADC_Get_Result(unsigned int* ret) { |
| if (ADCON0bits.GO_DONE) { |
| return 0; |
| } else { |
| *ret = adc_data.result; |
| return 1; |
| } |
| } |