| 0,0 → 1,43 |
|---|
| #include "defines.h" |
| #include "TIMER.h" |
| |
| void TIMER1_Init(void) { |
| T1CONbits.TMR1CS = 0x0; // Clock source is instruction clock |
| T1CONbits.T1CKPS = 0x3; // Prescale of 1:8 |
| T1CONbits.T1OSCEN = 0x0; // Dedicated oscillator circuit disabled |
| T1CONbits.nT1SYNC = 0x0; // Sync clock input with system clock |
| T1CONbits.TMR1ON = 0; // Timer starts off |
| T1GCONbits.TMR1GE = 0; // Gate disabled |
| TMR1 = 0x0; |
| |
| PIE1bits.TMR1IE = 0; // Interrupt disabled |
| |
| // Instruction clock running at 8MHz |
| // 1:1 Prescale overflows at 122Hz (8.2ms period) |
| // 1:2 Prescale overflows at 61Hz (16.4ms period) |
| // 1:4 Prescale overflows at 30.5Hz (32.7ms period) |
| // 1:8 Prescale overflows at 15.3Hz (65.5ms period) |
| |
| // Instruction clock running at 4MHz |
| // 1:1 Prescale overflows at 61Hz (16.4ms period) |
| // 1:2 Prescale overflows at 30.5Hz (32.7ms period) |
| // 1:4 Prescale overflows at 15.3Hz (65.5ms period) |
| // 1:8 Prescale overflows at 7.6Hz (131.1ms period) |
| } |
| |
| void TIMER1_Start(void) { |
| TMR1 = 0x0; |
| T1CONbits.TMR1ON = 1; |
| } |
| |
| void TIMER1_Stop(void) { |
| T1CONbits.TMR1ON = 0; |
| } |
| |
| uint16_t TIMER1_Read(void) { |
| return TMR1; |
| } |
| |
| void TIMER1_Interrupt_Handler(void) { |
| |
| } |