Subversion Repositories Code-Repo

Rev

Rev 114 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
113 Kevin 1 
#include "maindefs.h"
2 
#include "pwm.h"
3 
#include <pwm.h>
4 
 
5 
void pwm_init() {
6 
    // Configure pins RC5 and RC7 as outputs
7 
    TRISCbits.TRISC0 = 0;
8 
    TRISCbits.TRISC1 = 0;
9 
    TRISCbits.TRISC2 = 0;
10 
    LATCbits.LATC0 = 0;
11 
    LATCbits.LATC1 = 0;
12 
    LATCbits.LATC2 = 0;
13 
 
14 
    RPOR11 = 14;    // Set RP11 to ECCP1 PWM Output Channel A
15 
    RPOR12 = 15;    // Set RP12 to ECCP1 PWM Output Channel B
115 Kevin 16 
#ifdef _REMOTE
113 Kevin 17 
    RPOR13 = 18;    // Set RP13 to ECCP2 PWM Output
115 Kevin 18 
#endif
113 Kevin 19 
}
20 
 
21 
void pwm_IR_start() {
22 
    OpenPWM1(0x3D);  // 38kHz frequency
23 
    SetDCPWM1(0x80);  // 50% duty cycle
24 
 
25 
    // Wait for completion of a full PWM cycle before enabling output mode
26 
    while(!PIR1bits.TMR2IF);
27 
    SetOutputPWM1(SINGLE_OUT, PWM_MODE_1);
28 
 
29 
    // Enable ECCP1 output channels A and B
30 
    PSTR1CONbits.STRA = 1;
31 
    PSTR1CONbits.STRB = 1;
32 
}
33 
 
34 
void pwm_IR_stop() {
35 
    ClosePWM1();
36 
}
37 
 
114 Kevin 38 
void pwm_LED_on() {
115 Kevin 39 
#ifdef _REMOTE
113 Kevin 40 
    OpenPWM2(0xFF);     // Full period from timer
41 
    SetDCPWM2(0x80);    // 50% duty cycle
42 
    PSTR2CONbits.STRA = 1;  // Enable output channel A
115 Kevin 43 
#endif
44 
#ifdef _BASE_STATION
45 
    LATCbits.LATC2 = 1;
46 
#endif
114 Kevin 47 
    PWM_LED_STATE = 1;
113 Kevin 48 
}
49 
 
114 Kevin 50 
void pwm_LED_off() {
115 Kevin 51 
#ifdef _REMOTE
113 Kevin 52 
    ClosePWM2();
115 Kevin 53 
#endif
54 
#ifdef _BASE_STATION
55 
    LATCbits.LATC2 = 0;
56 
#endif
114 Kevin 57 
    PWM_LED_STATE = 0;
58 
}
59 
 
60 
void pwm_LED_toggle() {
61 
    if (PWM_LED_STATE) {
62 
        pwm_LED_off();
63 
    } else {
64 
        pwm_LED_on();
65 
    }
113 Kevin 66 
}