diff options
| -rw-r--r-- | main.c | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -33,6 +33,18 @@ static inline uint8_t read_reg(uint8_t reg) return SPDR; } +static inline void write_reg(uint8_t reg, uint8_t val) +{ + SPI_PORT &= ~(1 << SPI_SS); + SPDR = (reg & 0x1F) | 0x20; + while (!(SPSR & (1 << SPIF))) + ; + SPDR = val; + while (!(SPSR & (1 << SPIF))) + ; + SPI_PORT |= (1 << SPI_SS); +} + void radio_init(void) { SPI_DDR |= (1 << SPI_SS) | (1 << SPI_SCK) | (1 << SPI_MOSI); @@ -43,6 +55,9 @@ void radio_init(void) NRF_CE_PORT &= ~(1 << NRF_CE); _delay_ms(NRF_RST_DELAY_MS); + + // Change the default 1-byte CRC code to 2-byte CRC code + write_reg(0x00, 0b00001100); } int main(void) |