spi.RecBuf

#include <file_config.h>

BOOL RecBuf  (
     U8* buf,    /* buffer to store data */
     U32 sz);    /* buffer size          */

The function RecBuf stores data read from the SPI interface. The parameter buf is a pointer to the buffer to store the data. The parameter sz specifies the buffer size in bytes.

The function is part of the SPI Driver. The prototype is defined in the file File_Config.h. Developers must customize the function.

• __TRUE - on success.
• __FALSE - on failure.

spi.BusSpeed, spi.CheckMedia, spi.Init, spi.Send, spi.SendBuf, spi.SetSS, spi.UnInit

/* SPI Device Driver Control Block */
SPI_DRV spi0_drv = {
  Init,
  UnInit,
  Send,
  SendBuf,
  RecBuf,
  BusSpeed,
  SetSS,
  CheckMedia
};

/* Receive SPI data to buffer. */
static BOOL RecBuf (U8 *buf, U32 sz) {
  U32 i;

  for (i = 0; i < sz; i++) {
    SSPDR = 0xFF;
    while (!(SSPSR & RNE));                   /* Wait while Rx FIFO is empty. */
    buf[i] = SSPDR;
  }
  return (__TRUE);
}