diff options
Diffstat (limited to 'nRF24L01/radio.c')
| -rw-r--r-- | nRF24L01/radio.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/nRF24L01/radio.c b/nRF24L01/radio.c deleted file mode 100644 index c26e5f7..0000000 --- a/nRF24L01/radio.c +++ /dev/null @@ -1,133 +0,0 @@ -#include <stdlib.h> - -#include <avr/io.h> -#include <util/delay.h> - -#include "radio.h" -#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 NRF24L01_CE PB0 -#define NRF24L01_CE_DDR DDRB -#define NRF24L01_CE_PORT DDRB - -#define NRF24L01_POWER_ON_RST_DELAY 100 - -#define NRF24L01_REG_CONFIG 0x00 -#define NRF24L01_REG_EN_AA 0x01 -#define NRF24L01_REG_EN_RXADDR 0x02 -#define NRF24L01_REG_SETUP_AW 0x03 -#define NRF24L01_REG_SETUP_RETR 0x04 -#define NRF24L01_REG_RF_CH 0x05 -#define NRF24L01_REG_RF_SETUP 0x06 -#define NRF24L01_REG_STATUS 0x07 -#define NRF24L01_REG_OBSERVE_TX 0x08 -#define NRF24L01_REG_RPD 0x09 -#define NRF24L01_REG_RX_ADDR_P0 0x0A -#define NRF24L01_REG_RX_ADDR_P1 0x0B -#define NRF24L01_REG_RX_ADDR_P2 0x0C -#define NRF24L01_REG_RX_ADDR_P3 0x0D -#define NRF24L01_REG_RX_ADDR_P4 0x0E -#define NRF24L01_REG_RX_ADDR_P5 0x0F -#define NRF24L01_REG_TX_ADDR 0x10 -#define NRF24L01_REG_RX_PW_P0 0x11 -#define NRF24L01_REG_RX_PW_P1 0x12 -#define NRF24L01_REG_RX_PW_P2 0x13 -#define NRF24L01_REG_RX_PW_P3 0x14 -#define NRF24L01_REG_RX_PW_P4 0x15 -#define NRF24L01_REG_RX_PW_P5 0x16 -#define NRF24L01_REG_FIFO_STATUS 0x17 -#define NRF24L01_REG_DYNPD 0x1C -#define NRF24L01_REG_FEATURE 0x1D - -#define NRF24L01_NOP 0xFF -#define NRF24L01_R_REGISTER 0x00 -#define NRF24L01_W_REGISTER 0x20 -#define NRF24L01_R_RX_PAYLOAD 0x60 -#define NRF24L01_W_TX_PAYLOAD 0xA0 -#define NRF24L01_FLUSH_TX 0xE1 -#define NRF24L01_FLUSH_RX 0xE2 - -#define NRF24L01_MASK_RX_DR 6 -#define NRF24L01_MASK_TX_DS 5 -#define NRF24L01_MASK_MAX_RT 4 -#define NRF24L01_PWR_UP 1 -#define NRF24L01_PRIM_RX 0 -#define NRF24L01_ERX_P1 1 -#define NRF24L01_ERX_P0 0 - -static inline uint8_t read_reg(uint8_t reg) -{ - SPI_PORT &= ~(1 << SPI_SS); - SPDR = NRF24L01_R_REGISTER | reg; - while (!(SPSR & (1 << SPIF))) - ; - SPDR = 0; - while (!(SPSR & (1 << SPIF))) - ; - SPI_PORT |= (1 << SPI_SS); - return SPDR; -} - -static inline void write_reg(uint8_t reg, uint8_t val) -{ - SPI_PORT &= ~(1 << SPI_SS); - SPDR = NRF24L01_W_REGISTER | reg; - while (!(SPSR & (1 << SPIF))) - ; - SPDR = val; - while (!(SPSR & (1 << SPIF))) - ; - SPI_PORT |= (1 << SPI_SS); -} - -void radio_send(const char *data, uint8_t n) -{ -} - -uint8_t radio_recv(char *buf, uint8_t n) -{ -} - -void radio_listen(void) -{ -} - -void radio_init(const struct radio_cfg *cfg) -{ - uint8_t conf; - - SPI_DDR |= (1 << SPI_SS) | (1 << SPI_SCK) | (1 << SPI_MOSI); - SPI_PORT |= (1 << SPI_SS); - SPCR |= (1 << SPE) | (1 << MSTR); - - NRF24L01_CE_DDR |= (1 << NRF24L01_CE); - NRF24L01_CE_PORT &= ~(1 << NRF24L01_CE); - - _delay_ms(NRF24L01_POWER_ON_RST_DELAY); - - // disable IRQs, set CRC encoding scheme to 2 bytes - conf = 0; - conf |= (1 << NRF24L01_MASK_RX_DR); - conf |= (1 << NRF24L01_MASK_TX_DS); - conf |= (1 << NRF24L01_MASK_MAX_RT); - conf |= (1 << NRF24L01_CRCO); - write_reg(NRF24L01_REG_CONFIG, conf); - - // only use data pipe 0 - conf = 0; - conf &= ~(1 << NRF24L01_ERX_P1); - conf |= (1 << NRF24L01_ERX_P0); - write_reg(NRF24L01_REG_EN_RXADDR, conf); - - // set address width to 3 bytes - write_reg(NRF24L01_REG_SETUP_AW, 0x01); - - -} |