diff options
| -rw-r--r-- | rf_test/send.c | 43 |
1 files changed, 33 insertions, 10 deletions
diff --git a/rf_test/send.c b/rf_test/send.c index 7290c71..fe93a72 100644 --- a/rf_test/send.c +++ b/rf_test/send.c @@ -7,12 +7,12 @@ #include "serial.h" -#define SPI_SS PB2 -#define SPI_SCK PB5 -#define SPI_MISO PB4 -#define SPI_MOSI PB3 -#define SPI_DDR DDRB -#define SPI_PORT PORTB +#define SPI_SS PB2 +#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 @@ -22,6 +22,8 @@ #define RX_PCMSK PCMSK0 #define RX_PCINTVEC PCINT0_vect +#define PAYLOAD_LEN 32 + static inline uint8_t read_reg(uint8_t reg) { SPI_PORT &= ~(1 << SPI_SS); @@ -84,25 +86,42 @@ static inline uint8_t radio_recv(char *buf, uint8_t n) { uint8_t i; - if ((read_reg(0x28) & 0x04) != 0) + if ((read_reg(0x28) & 0x04)) { write_reg(0x01, 0x04); while ((read_reg(0x27) >> 7) != 1) ; + SPI_PORT &= ~(1 << SPI_SS); + SPDR = 0x00 | 0x7F; + while (!(SPSR & (1 << SPIF))) + ; for (i = 0; i < n; i++) { + SPDR = 0; + while (!(SPSR & (1 << SPIF))) + ; + buf[i] = SPDR; } + + SPI_PORT |= (1 << SPI_SS); } - return i; + return len; } -static inline void radio_init(void) +struct radio_cfg { + uint8_t payload_len +} + +static inline void radio_init(struct radio_cfg *cfg) { SPI_DDR |= (1 << SPI_SS) | (1 << SPI_SCK) | (1 << SPI_MOSI); SPI_PORT |= (1 << SPI_SS); SPCR |= (1 << SPE) | (1 << MSTR); + if (cfg->payload_len > 0) + write_reg(0x38, cfg->payload_len); + RX_DDR &= ~(1 << RX_PIN); PCICR |= (1 << RX_PCIE); RX_PCMSK |= (1 << RX_PCINT); @@ -110,10 +129,14 @@ static inline void radio_init(void) int main(void) { + struct radio_cfg cfg; + const char *s = "hello"; + cfg.payload_len = PAYLOAD_LEN; + serial_init(); - radio_init(); + radio_init(&cfg); sei(); |