diff options
| -rw-r--r-- | rf_test/send.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/rf_test/send.c b/rf_test/send.c index 33bc3ce..39fd891 100644 --- a/rf_test/send.c +++ b/rf_test/send.c @@ -11,10 +11,22 @@ #define SPI_SCK PB5 #define SPI_MISO PB4 #define SPI_MOSI PB3 - #define SPI_DDR DDRB #define SPI_PORT PORTB +#define RX_PIN PB0 +#define RX_DDR DDRB +#define RX_PORT PORTB +#define RX_PCIE PCIE0 +#define RX_PCINT PCINT0 +#define RX_PCMSK PCMSK0 +#define RX_PCINTvec PCINT0_vect + +#define RX_BUFLEN 32 + +static char rxbuf[RX_BUFLEN]; +static volatile uint8_t rx_ready = 0; + static inline uint8_t read_reg(uint8_t reg) { SPI_PORT &= ~(1 << SPI_SS); @@ -50,7 +62,6 @@ static inline void radio_send(const char *data, uint8_t n) while ((read_reg(0x27) >> 7) != 1) ; - // queue data to FIFO register SPI_PORT &= ~(1 << SPI_SS); SPDR = 0x00 | 0x80; while (!(SPSR & (1 << SPIF))) @@ -62,8 +73,21 @@ static inline void radio_send(const char *data, uint8_t n) } SPI_PORT |= (1 << SPI_SS); - // initiate transmission by switching to TX mode - write_reg(0x01, 0x0C); + write_reg(0x01, 0x0C); + while (!read_reg(0x28)) + ; + + write_reg(0x01, 0x04); + while ((read_reg(0x27) >> 7) != 1) + ; + + // STDBY + ListenOn mode + write_reg(0x01, (read_reg(0x01) | 0x40)); +} + +static inline void radio_recv(char *buf, uint8_t n) +{ + uint8_t i; } static inline void radio_init(void) @@ -71,6 +95,10 @@ static inline void radio_init(void) SPI_DDR |= (1 << SPI_SS) | (1 << SPI_SCK) | (1 << SPI_MOSI); SPI_PORT |= (1 << SPI_SS); SPCR |= (1 << SPE) | (1 << MSTR); + + //RX_DDR &= ~(1 << RX_PIN); + //PCICR |= (1 << RX_PCIE); + //RX_PCMSK |= (1 << RX_PCINT); } int main(void) @@ -80,6 +108,8 @@ int main(void) serial_init(); radio_init(); + sei(); + for (;;) { radio_send(s, strlen(s)); serial_write_line("sent data"); @@ -89,3 +119,6 @@ int main(void) return 0; } +ISR(RX_PCINTvec) +{ +} |