MTF-TW70SN911 с контроллером SSD1963, мерцает с низкой частотой Опции

[Freeuser]

Есть дисплей MTF-TW70SN911 с контроллером SSD1963. Вроде все запустил, дисплей инициализировал, с хоста заливаю весь экран одним цветом. Все отображается, только на дисплее видно мерцание изображение, как на мониторе при 20 Гц. Может быть, кто-то работал с этим контроллером (SSD1963), какие установки нужно изменить для нормального отображения картинки? Панель 7'' 800х480.

[Nikson1200]

а как инициализировали?
у меня - вот так:
(сборная солянка из найденных в Инете примеров от Microchip и NewHeavenDisplay)

Код

/*********************************************************************
* Overview: Image orientation (can be 0, 90, 180, 270 degrees).
*********************************************************************/    
#define DISP_ORIENTATION    0
/*********************************************************************
* Overview: Panel Data Width (R,G,B) in (6,6,6)
*********************************************************************/
#define DISP_DATA_WIDTH                 18
/*********************************************************************
* Overview: Horizontal and vertical display resolution
*                  (from the glass datasheet).
*********************************************************************/
#define DISP_HOR_RESOLUTION 800
#define DISP_VER_RESOLUTION 480
/*********************************************************************
* Overview: Horizontal synchronization timing in pixels
*                  (from the glass datasheet).
*********************************************************************/
#define DISP_HOR_PULSE_WIDTH        1
#define DISP_HOR_BACK_PORCH        210
#define DISP_HOR_FRONT_PORCH        45    
/*********************************************************************
* Overview: Vertical synchronization timing in lines
*                  (from the glass datasheet).
*********************************************************************/
#define DISP_VER_PULSE_WIDTH        1
#define DISP_VER_BACK_PORCH        34    
#define DISP_VER_FRONT_PORCH        10
/*********************************************************************
* Definition for SPI interface for SSD1963
* Hardware dependent!
*********************************************************************/
#define GPIO3 3
#define GPIO2 2
#define GPIO1 1
#define GPIO0 0
#define LCD_RESET     0
#define LCD_SPENA    0
#define LCD_SPCLK    0
#define LCD_SPDAT    0


#define HT (DISP_HOR_RESOLUTION+DISP_HOR_PULSE_WIDTH+DISP_HOR_BACK_PORCH+DISP_HOR_FRONT_
PORCH)
#define HPS (DISP_HOR_PULSE_WIDTH+DISP_HOR_BACK_PORCH)

#define VT (DISP_VER_PULSE_WIDTH+DISP_VER_BACK_PORCH+DISP_VER_FRONT_PORCH+DISP_VER_RESOL
UTION)
#define VSP (DISP_VER_PULSE_WIDTH+DISP_VER_BACK_PORCH)

void Init_SSD1963 (void)
{

      RESET = 1;
      CS = 1;
      nRD = 1;
      nWR = 1;

      RESET = 0;
      __delay_cycles(100);
      RESET = 1;


      Write_Command(0xE2);            // Set PLL with OSC = 10MHz (hardware)
      CS = 0;
      Write_Data(0x21);
      Write_Data(0x02);                // Divider M = 2, PLL = 360/(M+1) = 120MHz
      Write_Data(0x54);                // Validate M and N values
      CS = 1;

      Write_Command(0xe6);           //SET PCLK freq=4.94MHz; pixel clock frequency
      CS = 0;
      Write_Data(0x00);
      Write_Data(0xB4);
      Write_Data(0xE7);
      CS = 1;


      Write_Command(0xE0);
      CS = 0;
      Write_Data(0x01);    //START PLL
      CS = 1;

      __delay_cycles(1000);

      Write_Command(0xe0);
      CS = 0;
      Write_Data(0x03);    //LOCK PLL
      CS = 1;

      Write_Command(0x01); //// Soft reset
      __delay_cycles(100);

      Write_Command(0xB0);                      //SET LCD MODE  SET TFT 18Bits MODE
      CS = 0;
      Write_Data(0x10);                          //SET TFT MODE & hsync+Vsync+DEN MODE
      Write_Data(0x80);                          //SET TFT MODE & hsync+Vsync+DEN MODE
      Write_Data((DISP_HOR_RESOLUTION-1)>>8);      //SET horizontal size=800-1 HightByte
      Write_Data((DISP_HOR_RESOLUTION-1) & 0xFF); //SET horizontal size=800-1 LowByte
      Write_Data((DISP_VER_RESOLUTION-1)>>8);      //SET vertical size=480-1 HightByte
      Write_Data((DISP_VER_RESOLUTION-1) & 0xFF); //SET vertical size=480-1 LowByte
      Write_Data(0x00);                          //SET even/odd line RGB seq.=RGB
      CS = 1;

      //Set horizontal period
      Write_Command(0xb4);        
      CS = 0;
      Write_Data((HT-1)>>8);            
      Write_Data((HT-1) & 0xFF);
      Write_Data((HPS-1)>>8);            
      Write_Data(HPS-1);
      Write_Data(DISP_HOR_PULSE_WIDTH-1);    
      Write_Data(0x00);            
      Write_Data(0x00);
      Write_Data(0x00);    
      CS = 1;

      //Set vertical period
      Write_Command(0xb6);         
      CS = 0;
      Write_Data((VT-1)>>8);            
      Write_Data((VT-1) & 0xFF);
      Write_Data((VSP-1)>>8);            
      Write_Data(VSP-1);
      Write_Data(DISP_VER_PULSE_WIDTH-1);    
      Write_Data(0x00);            
      Write_Data(0x00);
      CS = 1;

      // SET R G B format
      Write_Command(0x3a);
      CS = 0;
      Write_Data(0x55);
      CS = 1;

      //SET pixel data I/F format=8bit
      Write_Command(0xF0);
      CS = 0;
      Write_Data(0x00);
      CS = 1;

      //0xB8 command ????


      //---------
      Write_Command(0x2a);        //SET column address
      CS = 0;
      Write_Data(0x00);            //SET start column address=0
      Write_Data(0x00);
      Write_Data(0x03);            //SET end column address=799
      Write_Data(0x1f);
      CS = 1;

      Write_Command(0x2b);        //SET page address
      CS = 0;
      Write_Data(0x00);            //SET start page address=0
      Write_Data(0x00);
      Write_Data(0x01);            //SET end page address=479
      Write_Data(0xdf);
      CS = 1;

      Write_Command(0x29);        //SET display on
}

всё работает отлично, панель WF70ATIBGDA от Winstar

Сообщение отредактировал Nikson1200 - Jul 1 2010, 08:50

[Fynjisx]

можете привести пример кода как вывести изображение на TFT?