diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 28 |
1 files changed, 11 insertions, 17 deletions
@@ -38,24 +38,18 @@ static inline uint8_t read_reg(uint8_t reg) return SPDR; } -static inline void spi_write(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); -} - static inline void write_reg(uint8_t reg, uint8_t val) { - uint8_t i; - - for (i = 0; read_reg(reg) != val && i < 10; i++) - spi_write(reg, val); + while (read_reg(reg) != 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); + } } static inline void print_config(void) @@ -86,7 +80,7 @@ void radio_init(void) _delay_ms(100); /* power on reset delay */ - write_reg(0x00, 0b00001100); /* use 2-byte CRC */ + write_reg(0x00, 0b00001101); /* rx mode, 2-byte CRC */ write_reg(0x01, 0b00111111); /* enable auto ack on all pipes */ write_reg(0x02, 0b00000001); /* enable rx address on pipe 0 */ write_reg(0x03, 0b00000001); /* set address width to 3 bytes */ |