epphal.c

来自「单片机MSP430与PDIUSBD12的固件代码,PDIUSBd12的驱动以及上」· C语言 代码 · 共 43 行

#include <msp430x14x.h>
#include "epphal.h"

void delay(void )
{
  unsigned int i;
  //for(i=0;i<30;i++)
  ;
}
 
void outportb(unsigned char Addr, unsigned char Data)
{
  //MCU_D12CS_0;
  
  if(Addr)  A0_COMMAND;
  else A0_DATA;  
  P5DIR = 0XFF;
  P5OUT = Data;
  D12_WR_0;
  _NOP(); 
  D12_WR_1;
  delay();
  //MCU_D12CS_1;  
}

unsigned char inportb(unsigned char Addr)
{
  unsigned char Data;
 // MCU_D12CS_0;
  if(Addr)  A0_COMMAND;
  else A0_DATA;
  
  P5DIR = 0X00;
  D12_RD_0; 
  Data = P5IN;
  D12_RD_1;
  //MCU_D12CS_1;
  delay();

   return Data;
  
}