testdrv.c

是一个键盘测试程序

#include <stdio.h>
#include "ledrv.h"

void udelay(long lDelay)
{
	int nULoop;

	for(nULoop = 0; nULoop < lDelay; nULoop++)
	{
		int nLoop;
		for(nLoop = 0; nLoop < 500; nLoop++);
	}
}

unsigned short* read_string () {
  FILE * pFile;
  long lSize;
  unsigned short * buffer;
  size_t result;

  pFile = fopen ( "msg.txt" , "rb" );
  if (pFile==NULL) {fputs ("File error",stderr); exit (1);}

  // obtain file size:
  fseek (pFile , 0 , SEEK_END);
  lSize = ftell (pFile);
  rewind (pFile);

  // allocate memory to contain the whole file:
  buffer = (unsigned short*) malloc (sizeof(char)*lSize);
  if (buffer == NULL) {fputs ("Memory error",stderr); exit (2);}

  // copy the file into the buffer:
  result = fread (buffer,1,lSize,pFile);
  if (result != lSize) {fputs ("Reading error",stderr); exit (3);}

  /* the whole file is now loaded in the memory buffer. */

  // terminate
  fclose (pFile);
  //free (buffer);
  return buffer;
}

int main() {
 //unsigned short text[] = { 0x56FD, 0x58FD,0x0000 };
 int i;
 int nCount = 0;
 unsigned short* text = read_string ();
 //unsigned short text[] = { 0xFF19, 0xFF11, 0x4E00, 0x0031, 0x4E09, 0x0066, 0x0079, 0x0057, 0x4E00, 0x4E8c, 0x4E09, 0x0000 };
 ledrv_t* drv = ledrv_init_default();
  
 //draw_line(drv,0,0,0,0);
 if(0) 
   {
  	ledrv_clear(drv);
	ledrv_flush(drv);
	sleep(1);

	//draw_text(drv,0,0,text);
  	ledrv_flush(drv);
     }
     /*
  for(i = 0; i < 5; i++)
     {
		ledrv_clear(drv);
		ledrv_flush(drv);
		sleep(1);
		//udelay(1 * 350 * 1000);
		nCount = draw_text(drv,0,2,text);
	    printf("count %d\n", i);
  		ledrv_flush(drv);
		sleep(1);
		//udelay(1 * 350 * 1000);
     } */
 
  static_draw(drv, text);
  sleep(1);
  from_right2left(drv,text,16);
  sleep(1);
  from_left2right(drv,text,3);
  sleep(1);
  from_top2bottom(drv,text,3);
  sleep(1);
  from_bottom2top(drv,text,1);
  sleep(1);
  flash_draw(drv, text,10);
  free(text);
  ledrv_destory(drv);	
  return 0;
}