//----------------------------------------------------------------------------- //AVR Mega168 SPI HAL #define BIT0 0x01 #define BIT1 0x02 #define BIT2 0x04 #define BIT3 0x08 #define BIT4 0x10 #define BIT5 0x20 #define BIT6 0x40 #define BIT7 0x80 #define SPI0_SS_BIT BIT2 #define SPI0_SS_DDR DDRB #define SPI0_SS_PORT PORTB #define SPI0_SCLK_BIT BIT5 #define SPI0_SCLK_DDR DDRB #define SPI0_SCLK_PORT PORTB #define SPI0_MOSI_BIT BIT3 #define SPI0_MOSI_DDR DDRB #define SPI0_MOSI_PORT PORTB #define SPI0_MISO_BIT BIT4 #define SPI0_MISO_DDR DDRB #define SPI0_MISO_PORT PORTB #define SPI0_WaitForReceive() #define SPI0_RxData() (SPDR) #define SPI0_TxData(Data) (SPDR = Data) #define SPI0_WaitForSend() while( (SPSR & 0x80)==0x00 ) #define SPI0_SendByte(Data) SPI0_TxData(Data);SPI0_WaitForSend() #define SPI0_RecvBute() SPI0_RxData() // PB4(MISO), PB3(MOSI), PB5(SCK), PB2(/SS) // CS=1, waiting for SPI start // SPI mode 0, 4MHz #define SPI0_Init() DDRB |= SPI0_SS_BIT|SPI0_SCLK_BIT|SPI0_MOSI_BIT;\ PORTB = SPI0_SS_BIT;\ SPCR = 0x50 //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- //IInChip SPI HAL #define IINCHIP_SpiInit SPI0_Init #define IINCHIP_SpiSendData SPI0_SendByte #define IINCHIP_SpiRecvData SPI0_RxData #define IINCHIP_CS_BIT BIT2 #define IINCHIP_CS_DDR DDRB #define IINCHIP_CS_PORT PORTB #define IINCHIP_CSInit() (IINCHIP_CS_DDR |= IINCHIP_CS_BIT) #define IINCHIP_CSon() (IINCHIP_CS_PORT |= IINCHIP_CS_BIT) #define IINCHIP_CSoff() (IINCHIP_CS_PORT &= ~IINCHIP_CS_BIT) //-----------------------------------------------------------------------------