[AVR]/Mega1282009. 11. 22. 05:26

ATMega128 TFT LCD(COM26T2844) 테스트

ATMega128 TFT LCD(COM26T2844) 테스트


ATMega128을 이용하여 [LCD_EXP EVM] 보드를 테스트 했다.
자료 정리 차원에서 정리해 본다.

ATMega128 TFT LCD(COM26T2844) Pinmap



ATMega128 TFT LCD(COM26T2844) Driver Code
//-----------------------------------------------------------------------------
// TFT LCD(COM26T2844) Driver
#define TFT_DRV_COM44     1

#define LCD_EN_BIT      BIT5
#define LCD_EN_PORT      PORTB
#define LCD_ENABLE()     Cbi(LCD_EN_PORT, LCD_EN_BIT)
#define LCD_DISABLE()     Sbi(LCD_EN_PORT, LCD_EN_BIT)

#define LCD_RST_BIT      BIT4
#define LCD_RST_PORT     PORTD
#define LCD_RST_ON()     Sbi(LCD_RST_PORT, LCD_RST_BIT)
#define LCD_RST_OFF()     Cbi(LCD_RST_PORT, LCD_RST_BIT)

#define LCD_RS_BIT      BIT7
#define LCD_RS_PORT      PORTE
#define LCD_RS_OFF()     Cbi(LCD_RS_PORT, LCD_RS_BIT)
#define LCD_RS_ON()      Sbi(LCD_RS_PORT, LCD_RS_BIT)

#define LCD_WR_BIT      BIT3
#define LCD_WR_PORT      PORTG
#define LCD_WR_OFF()     Cbi(LCD_WR_PORT, LCD_WR_BIT)
#define LCD_WR_ON()      Sbi(LCD_WR_PORT, LCD_WR_BIT)

#define LCD_RD_BIT      //BIT7
#define LCD_RD_PORT      //PORTA
#define LCD_RD_OFF()     //Cbi(LCD_RD_PORT, LCD_RD_BIT)
#define LCD_RD_ON()      //Sbi(LCD_RD_PORT, LCD_RD_BIT)

#define LCD_BL_BIT      BIT4
#define LCD_BL_PORT      PORTB
#define LCD_BL_OFF()     Cbi(LCD_BL_PORT, LCD_BL_BIT)
#define LCD_BL_ON()      Sbi(LCD_BL_PORT, LCD_BL_BIT)

#define TFTGpioInit()     DDRA = 0xFF;\
          DDRC = 0xFF;\
          Sbi(DDRB, BIT4|BIT5);\
          Sbi(DDRD, BIT4);\
          Sbi(DDRE, BIT7);\
          Sbi(DDRG, BIT3);

#define DATA_OUT(Data)     PORTA = (Data&0xFF); PORTC = ((Data>>8)&0xFF)


TFT LCD 기본 테스트 예제코드
#include "system.h"
#include "serial.h"
#include "tft_lcd.h"

//-----------------------------------------------------------------------------
int main(void)
{
 SystemInit();
 int delay_time = 1;
  
 Led1Init();
 Led1On();

 //Serial Init
 U0_Init(BAUD_115200);
 printf("myAVR Mega128 Test Program1\r\n");
 
 TftLcd_Init();         //Initial LCD 

 while(1)
 {
   Disp_Full_Color(Red);
  Delay(delay_time);
  Disp_Full_Color(Green);
  Delay(delay_time);
  Disp_Full_Color(Blue);
  Delay(delay_time);

  Ver_8Gray_Disp() ;
  Delay(delay_time);
  Hor_8Gray_Disp() ;
  Delay(delay_time);
  Ver_8Color_Disp() ;
  Delay(delay_time);
  Hor_8Color_Disp() ;
  Delay(delay_time); 
 }
}
//-----------------------------------------------------------------------------


테스트 동영상
ATMega128 7.3728Mhz에서 TFT LCD테스트



Posted by nexp

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