diff options
Diffstat (limited to 'nrfm.c')
| -rw-r--r-- | nrfm.c | 34 |
1 files changed, 32 insertions, 2 deletions
@@ -1,6 +1,8 @@ #include <stdio.h> #include <stdlib.h> + #include <avr/io.h> +#include <avr/interrupt.h> #include <util/delay.h> #include "nrfm.h" @@ -13,16 +15,24 @@ #define SPI_DDR DDRB #define SPI_PORT PORTB -#define NRF_IRQ PD7 #define NRF_CE PB1 #define NRF_CE_DDR DDRB #define NRF_CE_PORT PORTB +#define NRF_IRQ PD7 +#define NRF_IRQ_DDR DDRD +#define NRF_IRQ_PORT PORTD +#define NRF_IRQ_PCIE PCIE2 +#define NRF_IRQ_PCINT PCINT23 +#define NRF_IRQ_PCMSK PCMSK2 +#define NRF_IRQ_PCINTVEC PCINT2_vect + #define NRF_NOP 0xFF #define NRF_R_REGISTER 0x1F #define NRF_W_REGISTER 0x20 -#define ADDRLEN 3 +#define PDLEN 33 +#define ADDRLEN 3 #define LEN(a) (sizeof(a) / sizeof(a[0])) @@ -123,6 +133,11 @@ void radio_init(uint8_t rxaddr[ADDRLEN]) NRF_CE_DDR |= (1 << NRF_CE); NRF_CE_PORT &= ~(1 << NRF_CE); + NRF_IRQ_DDR &= ~(1 << NRF_IRQ); + NRF_IRQ_PORT &= ~(1 << NRF_IRQ); + PCICR |= (1 << NRF_IRQ_PCIE); + NRF_IRQ_PCMSK |= (1 << NRF_IRQ_PCINT); + _delay_ms(110); /* power on reset delay */ write_reg(0x00, 0b00111100); /* use 2-byte CRC, enable only the rx interrupt */ @@ -139,3 +154,18 @@ void radio_init(uint8_t rxaddr[ADDRLEN]) write_reg_bulk(0x0A, rxaddr, ADDRLEN); } +ISR(NRF_IRQ_PCINTVEC) +{ + uint8_t i, n; + char buf[PDLEN]; + + cli(); + uart_write_line("Detected IRQ"); + + //n = radio_recv(buf, (PDLEN - 1)); + //buf[n] = '\0'; + + uart_write_line(buf); + + sei(); +} |