oled刷新屏幕有错误

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楼主

菊江先生|

楼主 | 2020-4-22 16:35 | 只看该作者回帖奖励

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OLED, AC, rc, ST, TI

我设置显示数据是小数点后三位，可屏幕显示的确是小数点后好几位，有时采集的数据，显示屏上也会出错。改了好长时间就是改不过来/。望指教。

int main(void)
{
char str1[8]={0};
char str2[8]={0};
char str3[6]={0};
unsigned char i;

LED_GPIO_Config();    /* LED&sup3;&otilde;&Ecirc;&frac14;&raquo;&macr; */
  USART_Config();       /* &acute;&reg;&iquest;&Uacute;&sup3;&otilde;&Ecirc;&frac14;&raquo;&macr; */

SysTick_Init();       /*&sup3;&otilde;&Ecirc;&frac14;&raquo;&macr;&Ntilde;&Oacute;&sup3;&Ugrave;&ordm;&macr;&Ecirc;&yacute;*/
  i2c_CfgGpio();    /*I2C×&Uuml;&Iuml;&szlig;&micro;&Auml;GPIO&sup3;&otilde;&Ecirc;&frac14;&raquo;&macr;*/
OLED_Init();    /* OLED&sup3;&otilde;&Ecirc;&frac14;&raquo;&macr; */
ADVANCE_TIM_Init();    //&sup2;&para;&raquo;&ntilde;pwm&micro;&Auml;


/*OLED&frac14;ì&sup2;&acirc;&sup2;&acirc;&Ecirc;&Ocirc;*/


  while(1)
{
  OLED_Fill(0xFF);//&Egrave;&laquo;&AElig;&Aacute;&micro;&atilde;&Aacute;&Aacute;
  Delay_s(2);

  OLED_Fill(0x00);//&Egrave;&laquo;&AElig;&Aacute;&Atilde;&eth;
  Delay_s(2);
for(i=0;i<2;i++)
  {
OLED_ShowCN(0+i*16,0,i);       //&sup2;&acirc;&Ecirc;&Ocirc;&Iuml;&Ocirc;&Ecirc;&frac34;&Ouml;&ETH;&Icirc;&Auml;

  }
  for(i=2;i<4;i++)
{
OLED_ShowCN(0+(i-2)*16,2,i);
}
  for(i=4;i<7;i++)
{
OLED_ShowCN(0+(i-4)*16,4,i);
}
  while(1)
  {
sprintf(str1,&quot;%.3f&quot;,Frequency); //这里出错
sprintf(str2,&quot;%8d&quot;,pinlvalue); //这里出错
  sprintf(str3,&quot;%.3f&quot;,DutyCycle); //这里出错
  OLED_ShowStr(33,0,(unsigned char*)str1,2);
  OLED_ShowStr(33,2,(unsigned char*)str2,2);
  OLED_ShowStr(49,4,(unsigned char*)str3,2);
  Delay_ms(200);
printf(&quot;\r\n time value = %d \r\n&quot;,pinlvalue);

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oled刷新屏幕有错误

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