| 0,0 → 1,161 |
|---|
| #include <xc.h> |
| #include "defines.h" |
| #include "base_INTERRUPTS.h" |
| #include "base_UART.h" |
| #include "base_I2C.h" |
| #include "base_TIMERS.h" |
| |
| void Interrupt_Init() { |
| // Peripheral base_INTERRUPTS.can have their priority set to high or low |
| // Decide on the priority of the enabled peripheral interrupts (0 is low, 1 is high) |
| |
| // High priority interrupts |
| IPR1bits.RC1IP = 1; // USART1 RX interrupt |
| IPR1bits.TX1IP = 1; // USART1 TX interrupt |
| // IPR3bits.RC2IP = 1; // USART2 RX interrupt |
| IPR1bits.SSPIP = 1; // I2C interrupt |
| // IPR3bits.SSP2IP = 1; // MSSP2 (SPI2) interrupt |
| |
| // Low priority interrupts |
| // INTCON2bits.TMR0IP = 0; // Timer0 interrupt |
| IPR1bits.TMR1IP = 0; // Timer1 interrupt |
| // IPR2bits.TMR3IP = 0; // Timer 3 interrupt |
| // IPR1bits.ADIP = 0; // ADC interupt |
| // INTCON2bits.RBIP = 0; // Port B interrupt |
| // INTCON3bits.INT1IP = 0; // INT1 interrupt |
| |
| // Enable Port B interrupt |
| // INTCONbits.RBIE = 1; |
| // Enable interrupt for INT1 |
| // INTCON3bits.INT1IE = 1; |
| } |
| |
| void Interrupt_Enable() { |
| // Peripheral base_INTERRUPTS.can have their priority set to high or low. |
| // Enable both high-priority interrupts and low-priority interrupts |
| RCONbits.IPEN = 1; |
| INTCONbits.GIEH = 1; |
| INTCONbits.GIEL = 1; |
| } |
| |
| void Interrupt_Disable() { |
| RCONbits.IPEN = 0; |
| INTCONbits.GIEH = 0; |
| INTCONbits.GIEL = 0; |
| } |
| |
| void interrupt InterruptHandlerHigh(void) { |
| // We need to check the interrupt flag of each enabled high-priority interrupt to |
| // see which device generated this interrupt. Then we can call the correct handler. |
| |
| // // Check to see if we have an SPI2 interrupt |
| // if (PIR3bits.SSP2IF) { |
| // // Call the handler |
| // SPI2_Recv_Interrupt_Handler(); |
| // |
| // // Clear the interrupt flag |
| // PIR3bits.SSP2IF = 0; |
| // |
| // return; |
| // } |
| |
| // Check to see if we have an I2C interrupt |
| if (PIR1bits.SSPIF) { |
| |
| // Call the handler |
| I2C_Interrupt_Handler(); |
| |
| // Clear the interrupt flag |
| PIR1bits.SSPIF = 0; |
| |
| return; |
| } |
| |
| // Check to see if we have an interrupt on USART1 RX |
| if (PIR1bits.RC1IF) { |
| // Call the interrupt handler |
| UART1_Recv_Interrupt_Handler(); |
| |
| // Clear the interrupt flag |
| PIR1bits.RC1IF = 0; |
| |
| return; |
| } |
| |
| #ifndef _DEBUG // Disable UART1 TX interrupt for debug mode (using printf) |
| // Check to see if we have an interrupt on USART1 TX |
| if (PIR1bits.TX1IF) { |
| // Call the interrupt handler |
| UART1_Send_Interrupt_Handler(); |
| |
| // Clear the interrupt flag |
| PIR1bits.TX1IF = 0; |
| |
| return; |
| } |
| #endif |
| |
| // // Check to see if we have an interrupt on USART2 RX |
| // if (PIR3bits.RC2IF) { |
| // DBG_PRINT_INT("INT: UART2 RX\r\n"); |
| // // Call the interrupt handler |
| // uart_2_recv_interrupt_handler(); |
| // |
| // // Clear the interrupt flag |
| // PIR3bits.RC2IF = 0; |
| // } |
| } |
| |
| void interrupt low_priority InterruptHandlerLow() { |
| // // Check to see if we have an interrupt on INT1 |
| // if (INTCON3bits.INT1IF) { |
| // DBG_PRINT_INT("INT: INT1\r\n"); |
| // int1_interrupt_handler(); |
| // |
| // INTCON3bits.INT1IF = 0; |
| // } |
| |
| // // Check to see if we have an interrupt on any port B inputs <4:7> |
| // if (INTCONbits.RBIF) { |
| // DBG_PRINT_INT("INT: Port B\r\n"); |
| // port_b_int_interrupt_handler(); |
| // |
| // INTCONbits.RBIF = 0; |
| // } |
| |
| // // Check to see if we have an interrupt on timer 0 |
| // if (INTCONbits.TMR0IF) { |
| // DBG_PRINT_INT("INT: Timer 0\r\n"); |
| // // Call the handler |
| // timer0_interrupt_handler(); |
| // |
| // // Clear this interrupt flag |
| // INTCONbits.TMR0IF = 0; |
| // } |
| |
| // Check to see if we have an interrupt on timer 1 |
| if (PIR1bits.TMR1IF) { |
| // Call the interrupt handler |
| Timer1_Interrupt_Handler(); |
| |
| // Clear the interrupt flag |
| PIR1bits.TMR1IF = 0; |
| } |
| |
| // // Check to see if we have an interrupt on timer 3 |
| // if (PIR2bits.TMR3IF) { |
| // DBG_PRINT_INT("INT: Timer 3\r\n"); |
| // timer3_interrupt_handler(); |
| // |
| // PIR2bits.TMR3IF = 0; |
| // } |
| |
| // // Check to see if we have an interrupt on ADC |
| // if (PIR1bits.ADIF) { |
| // // Call the interrupt handler |
| // ADC_Interrupt_Handler(); |
| // |
| // // Clear the interrupt flag |
| // PIR1bits.ADIF = 0; |
| // } |
| } |