新手求指教 LCD 不能实时更新

只看该作者 · 2012-5-11 09:05

#include <m8c.h>       // part specific constants and macros
#include "PSoCAPI.h" // PSoC API definitions for all User Modules
#include <stdlib.h>

int CountValue1;
int b;
int c;
char str[15];
BYTE oldvalue;

displayvalue(a)
{

b=a;

if(b>0)
{
   LCD_Start();
   itoa(str, b, 10);
  LCD_Position(1,0); // Place LCD cursor at row 1, col 0.
   LCD_PrCString("freq:"); // Print "PSoC LCD" on the LDC
   LCD_Delay50uTimes(5);
   LCD_Position(1,6); // Place LCD cursor at row 0, col 5.
   LCD_PrString(str); // Print "PSoC LCD" on the LDC
}

}
void main(void)
{
  // Uncomment this line to enable Global Interrupts
// Insert your main routine code here.
LCD_Start();
LCD_Position(0,0); // Place LCD cursor at row 1, col 0.
LCD_PrCString("freq:null"); // Print "PSoC LCD" on the LDC

Timer8_Start();
Timer8_EnableInt();
Timer8_WritePeriod(0x64);
Timer8_WriteCompareValue(0x63);

M8C_EnableGInt;
Counter16_Start(); /* start the counter */

for( ; ; )
{
      int cou=000000;

   oldvalue=PRT1DR&0x80;
      if((oldvalue==0x80)&&((PRT1DR&0x80)==0x00))
{
            for(c=1 ; c<10000; c++)
{
      cou=13456;
   cou=cou+1;
displayvalue(cou);
}
}
      else
   {
   cou=000000;

   }

}
}

只看该作者 · 2012-5-14 17:39

你的P1_7接哪里?有下降沿来么?
而且这个也不对啊
cou=13456;
cou=cou+1;
displayvalue(cou);
应该是静态变量吧 static