原创 用Proteus和Keil做ARM7仿真

最近发现Proteus里面也可以做ARM的仿真，不过只支持ARM7，手头又刚好有LPC2106的书，就顺便做了个1602液晶的仿真，感觉不错！

源代码如下：

#include "config.h"
#define LCM_RS   (1<<8)
#define LCM_RW   (1<<9)
#define LCM_EN   (1<<10)
#define LCM_BUSY (1<<7)

uint8 txt[]="Hi, Craftor!";

void delay(uint16 dly)
{
 uint16 i;
  while(--dly)
  for (i=0;i<5000;i++);

}
void chkbusy()
{
  IODIR = 0x700;
 while(1)
 {
   IOCLR = LCM_RS;
  IOSET = LCM_RW;
  IOSET = LCM_EN;
  if (!(IOPIN & LCM_BUSY)) break;
  IOCLR = LCM_EN;
 }
 IODIR = 0x7ff;
}

void write_cmd(uint8 dat)
{
  chkbusy();
 IOCLR = LCM_RS;
 IOCLR = LCM_RW;
 IOCLR = 0xff;
 IOSET = dat;
 IOSET = LCM_EN;
 delay(2);
 IOCLR = LCM_EN;
}

void write_dat(uint8 dat)
{
  chkbusy();
 IOSET = LCM_RS;
 IOCLR = LCM_RW;
 IOCLR = 0xff;
 IOSET = dat;
 IOSET = LCM_EN;
 delay(2);
 IOCLR = LCM_EN;
}

void lcm_init()
{
  write_cmd(0x38);
 write_cmd(0x06);
 write_cmd(0x0f);
}

void dis_txt(uint16 addr, uint8 *p)
{
  write_cmd(addr);
 while(*p != '\0')
  write_dat(*(p++));
}

int main(void)
{
 lcm_init();
 IODIR = 0x7ff;
 IOCLR = 0x7ff;
 dis_txt(0x80,txt);
 while(1);
}