Posted on November 29, 2016 at 21:13
There is a problem with the transfer on SPI how to track that this left?! Here is the function code for the transfer of bytes via SPI and a picture with a logic analyzer, circled in red, what confuses me is that for a glitch!
void init_SPI(void){ CLK_PCKENR1 = 0x02; // Включаем тактирование SPI PC_DDR|=(1<<6)|(1<<5)|(1<<4);//MOSI(6) SCLK(5) CS(4) PC_CR1|=(1<<4); PC_CR2|=(1<<4); SPI_CR2|=(1<<1)|(1<<0);//CS Sofware SPI_CR1|=(1<<5)|(1<<4)|(1<<3)|(1<<2); //Fmaster/256, режим Master SPI_CR1&=~((1<<1)|(1<<0)); SPI_CR1|=(1<<6);// Включаем SPI}void spi_send_2(unsigned char dummy){ unsigned char tmp; SPI_DR=dummy; while (!SPI_SR_bit.TXE);}void cc1101_strobe(unsigned char s){//PC_ODR&=~(1<<4);spi_send_2(s);PC_ODR|=(1<<4);}void cc1101_init(){int a;PC_ODR&=~(1<<4);cc1101_strobe(SRES);for(a=0; a<74; a++){spi_send_2(cc_config[a]);}PC_ODR|=(1<<4);delay(100);}
