libaoliang 发表于 2012-2-24 11:59:57

我的ATMEGA3290P驱动段式LCD程序,为什么点不亮?

我的ATMEGA3290P驱动段式LCD程序,为什么点不亮?初始化有问题吗?
程序如下:
#include <avr/io.h>
//#include<avr/eeprom.h>
//#include<stdio.h>
//#include <avr/signal.h>
//#include <avr/pgmspace.h>




unsigned char mask = {
0b11000000,
0b00110000,
0b00001100,
0b00000011
};

//unsigned char shift = {0, 2 , 4, 6 };
unsigned char LCD_DisBuffer;
                                 
unsigned intNumberMap = {
0b11110110,
0b10100010,
0b11101101,
0b11101011,
0b10111010,
0b11011011,
0b11011111,
0b11100010,
0b11111111,
0b11111011
};

#define vref   1500
#define verf_zero    83

//uint8_t FHR100,FHR10,FHR1;
//extern uint8_t FHR ;
//uint16_tFHRLevel;

/*******************************************************************************
* Function Name   : ConvertNum
* Description   : ?????????????
* Inputs          : InputNum--????
* Outputs         : None
* Return          : None
* Notes         : None
*******************************************************************************/

void ConvertNum(unsigned int SPI_DATA)
{
unsigned int temp,Num=0;
unsigned char i,j;
unsigned int lcd_buffer;
temp=(unsigned int)(((unsigned long)((unsigned long)SPI_DATA*vref))/14745);
temp=temp-verf_zero;
for(i=0;i<4;i++)
          {


               Num=NumberMap;


      for(j=0;j<4;j++)

      {
         lcd_buffer =Num & mask;
                // temp2>>shift
      //LCD_DisBuffer = LCD_DisBuffer |(unsigned char)( temp2>> (unsigned char)shift);

}



      temp=temp/10;

switch (i)
{

   case 0:
   
   /* Enable the write access on the LCD RAM First banck */
   // LCD->CR4 &= (uint8_t)~LCD_CR4_PAGECOM;

      //COM0
       
      LCD_DisBuffer=lcd_buffer;
      LCD_DisBuffer=lcd_buffer<<2;
      LCD_DisBuffer=lcd_buffer<<4;
      LCD_DisBuffer=lcd_buffer<<6;

      break;

   case 1:
   
      LCD_DisBuffer|=lcd_buffer>>2;
      LCD_DisBuffer|=lcd_buffer;
      LCD_DisBuffer|=lcd_buffer<<2;
      LCD_DisBuffer|=lcd_buffer<<4;
      break;

   case 2:
   
      LCD_DisBuffer|=lcd_buffer>>4;
      LCD_DisBuffer|=lcd_buffer>>2;
      LCD_DisBuffer|=lcd_buffer;
      LCD_DisBuffer|=lcd_buffer<<2;
      break;
   case 3:
      LCD_DisBuffer|=lcd_buffer>>6;
      LCD_DisBuffer|=lcd_buffer>>4;
      LCD_DisBuffer|=lcd_buffer>>2;
      LCD_DisBuffer|=lcd_buffer;
      break;
}



                }

}

//uint16_t Num, tmp = 0;
//uint8_t i;

//if((InputNum>='0')&&(InputNum<='9'))
//{
//Num=NumberMap;
//}
// else
//{
//   Num=0;
// }

//for(i = 0;i < 4; i++)
// {
//   tmp = Num & mask;
//   LCD_DisBuffer = (uint8_t)(tmp >> (uint8_t)shift);
// }

//}

void LCD_Init(void)
{
/* Use 32kHz crystal oscillator */
/* 1/3 Bias and 1/4 duty, SEG0:SEG28 is used as port pins */
LCDCRB = (1<<LCDCS) | (1<<LCDMUX1)| (1<<LCDMUX0)| (1<<LCDPM3)| (1<<LCDPM0);
/* Using 16 as prescaler selection and 7 as LCD Clock Divide */
/* gives a frame rate of 49 Hz */
LCDFRR = (1<<LCDCD2) | (1<<LCDCD1);
/* Set segment drive time to 150 &brvbar;&Igrave;s and output voltage to 3 V*/
LCDCCR = (1<<LCDDC1) | (1<<LCDCC3) ;
/* Enable LCD, default waveform and no interrupt enabled */
LCDCRA = (1<<LCDEN);
}

void LCD_update(void)
{
/* LCD Blanking and Low power waveform are unchanged. */
/* Update Display memory. */

LCDDR00 = LCD_DisBuffer;
LCDDR05 = LCD_DisBuffer;
LCDDR10 = LCD_DisBuffer;
LCDDR15 = LCD_DisBuffer;

}

int main (void)

{
   PORTA = 0xFF;
   DDRA= 0xFF;
   
   PORTC = 0xFF;
   DDRC= 0xFF;

   PORD = 0xFF;
   DDRD= 0xFF;

   PORTG = 0xFF;
   DDRG= 0xFF;


LCD_Init();

while(1)
{
unsigned int Output;
Output=0x0406;
ConvertNum(Output);//PRESSURE TO BE 0x0406;

LCD_update();

}

}

GNMXD 发表于 2012-10-17 14:02:50

请问 你这个 MCU 的芯片你是哪里买的？

donkey456 发表于 2013-7-18 10:11:00

程序太长了，，没心思看，，
页: [1]
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