| 0,0 → 1,24 |
|---|
| #include "defines.h" |
| #include "ADC.h" |
| |
| void ADC_Init(void) { |
| ADCON0bits.ADON = 0; // Turn off ADC module |
| ADCON1bits.ADFM = 1; // Right justified data |
| ADCON1bits.ADCS = 0b110; // A/D conversion clock = FOSC/64 |
| ADCON1bits.ADNREF = 0; // Negative reference is VSS |
| ADCON1bits.ADPREF = 0b00; // Positive reference is VDD |
| } |
| |
| uint16_t ADC_Read(uint8_t channel) { |
| uint16_t ret; |
| |
| ADCON0bits.CHS = channel; // Set channel |
| ADCON0bits.ADON = 1; // Turn ADC on |
| __delay_us(10); // Wait the acquisition time |
| ADCON0bits.GO_nDONE = 1; // Start conversion |
| while (ADCON0bits.GO_nDONE == 1); // Wait for conversion to finish |
| ret = ADRESH << 8; // Read ADC value |
| ret |= ADRESL; |
| |
| return ret; |
| } |