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SPI FIFO INITIALIZATION

Question asked by Deepansh Goyal on Jul 4, 2015
Latest reply on Jul 10, 2015 by Earl Orlando Ramirez Sanchez

Can anyone please give me SPI FIFO initialization .The one I have made is not working properly.I am also posting my spi fifo initialization

void spi_master_fifo_init()

{

  SIM_SCGC6 |= SIM_SCGC6_DSPI0_MASK;

  // first set the spi2_mcr

   spi_pin_mapping();

  // MASTER MODE ,Continuous clock generation, peri chip select signal, when rx data overflow overwrite the shift register, all the chip select uses high signal for deactivating, doze mode is disabled, enalbe DSPI clocks always and is not controlled by external digital pins, tx and rx are enabled  

  SPI0_MCR = ((HALT) | (MODULE_DISABLE));

  SPI0_MCR = ((TX_DISABLE)|(MASTER_MODE)|(RX_DISABLE)|(SPI_MCR_ROOE_MASK)|(SPI_MCR_CLR_TXF_MASK)|SPI_MCR_CLR_RXF_MASK|(SPI_MCR_DCONF(0x00))|(SPI_MCR_CONT_SCKE_MASK & 0x01)|(SPI_MCR_PCSIS(31)));

  SPI0_CTAR0 = (SPI_CTAR_DBR_MASK & 0x00) | (SPI_CTAR_FMSZ(0x07)) | (SPI_CTAR_PDT(0x00)) | (SPI_CTAR_BR(0x08)) | (INACTIVE_CLOCK_POLARITY_LOW) | (CLOCK_PHASE_CAPTURE_ON_LOW) | (SPI_CTAR_PBR(0x03)) | (SPI_CTAR_PCSSCK(0x02) | (SPI_CTAR_PASC(0x00)) | (SPI_CTAR_CSSCK(0x06)) | (SPI_CTAR_ASC(0)) | (SPI_CTAR_PDT(0x00)) | (SPI_CTAR_DT(0))) ; // mode 0 operation

}

BUT its not working properly.

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