| 0,0 → 1,31 |
|---|
| #include "maindefs.h" |
| #include "pwm.h" |
| #include <pwm.h> |
| |
| void pwm_init() { |
| // Configure pins RC5 and RC7 as outputs |
| TRISCbits.TRISC0 = 0; |
| TRISCbits.TRISC1 = 0; |
| LATCbits.LATC0 = 0; |
| LATCbits.LATC1 = 0; |
| |
| RPOR11 = 14; // Set RP11 to ECCP1 PWM Output Channel A |
| RPOR12 = 15; // Set RP12 to ECCP1 PWM Output Channel B |
| } |
| |
| void pwm_start() { |
| OpenEPWM1(0xFF, ECCP_1_SEL_TMR12); // 38kHz Frequency |
| SetDCEPWM1(512); // 50% Duty Cycle |
| |
| // Wait for completion of a full PWM cycle before enabling output mode |
| while(!PIR1bits.TMR2IF); |
| SetOutputEPWM1(SINGLE_OUT, PWM_MODE_1); |
| |
| // Enable ECCP1 output channels A and B |
| PSTR1CONbits.STRA = 1; |
| PSTR1CONbits.STRB = 1; |
| } |
| |
| void pwm_stop() { |
| CloseEPWM1(); |
| } |