spi.c

lpc2131的串口程序

#include "config.h"


uint8 SPI_SendData(uint8 nDSEN,uint16 data)
{
  IO0CLR|=(uint32)(1<<nDSEN);
  S0SPDR=data;
  while((S0SPSR & 0x80)==0);
  IO0SET|=(uint32)(1<<nDSEN);
  return(S0SPDR);
}