Empecé a jugar con una pantalla TFT barata, llamada HY28B. Es bastante conocido, supongo ... De todos modos, quiero cambiar la orientación de la pantalla al modo horizontal, pero de alguna manera no hace lo que quiero.
Intenté configurar la pantalla con esta configuración (ILI9325): enlace
Y cambié el valor del registro del modo de entrada (0x03) a 0x10B0, pero mi cadena aún está en modo retrato. Dibujé la cadena con el código de muestra de la pantalla de ebay.
Esta es la configuración exacta que estoy usando:
LCD_WriteReg(0xE5, 0x78F0); // set SRAM internal timing
LCD_WriteReg(0x01, 0x0100); // set Driver Output Control
LCD_WriteReg(0x02, 0x0700); // set 1 line inversion
LCD_WriteReg(0x03, 0x1030); // set GRAM write direction and BGR=1.
LCD_WriteReg(0x04, 0x0000); // Resize register
LCD_WriteReg(0x08, 0x0207); // set the back porch and front porch
LCD_WriteReg(0x09, 0x0000); // set non-display area refresh cycle ISC[3:0]
LCD_WriteReg(0x0A, 0x0000); // FMARK function
LCD_WriteReg(0x0C, 0x0000); // RGB interface setting
LCD_WriteReg(0x0D, 0x0000); // Frame marker Position
LCD_WriteReg(0x0F, 0x0000); // RGB interface polarity
//*************Power On sequence ****************//
LCD_WriteReg(0x10, 0x0000); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_WriteReg(0x11, 0x0007); // DC1[2:0], DC0[2:0], VC[2:0]
LCD_WriteReg(0x12, 0x0000); // VREG1OUT voltage
LCD_WriteReg(0x13, 0x0000); // VDV[4:0] for VCOM amplitude
LCD_WriteReg(0x07, 0x0001);
delay(200); // Dis-charge capacitor power voltage
LCD_WriteReg(0x10, 0x1090); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_WriteReg(0x11, 0x0227); // Set DC1[2:0], DC0[2:0], VC[2:0]
delay(50); // Delay 50ms
LCD_WriteReg(0x12, 0x001F); // 0012
delay(50); // Delay 50ms
LCD_WriteReg(0x13, 0x1500); // VDV[4:0] for VCOM amplitude
LCD_WriteReg(0x29, 0x0027); // 04 VCM[5:0] for VCOMH
LCD_WriteReg(0x2B, 0x000D); // Set Frame Rate
delay(50); // Delay 50ms
LCD_WriteReg(0x20, 0x0000); // GRAM horizontal Address
LCD_WriteReg(0x21, 0x0000); // GRAM Vertical Address
// ----------- Adjust the Gamma Curve ----------//
LCD_WriteReg(0x30, 0x0000);
LCD_WriteReg(0x31, 0x0707);
LCD_WriteReg(0x32, 0x0307);
LCD_WriteReg(0x35, 0x0200);
LCD_WriteReg(0x36, 0x0008);
LCD_WriteReg(0x37, 0x0004);
LCD_WriteReg(0x38, 0x0000);
LCD_WriteReg(0x39, 0x0707);
LCD_WriteReg(0x3C, 0x0002);
LCD_WriteReg(0x3D, 0x1D04);
//------------------ Set GRAM area ---------------//
LCD_WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
LCD_WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
LCD_WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
LCD_WriteReg(0x53, 0x013F); // Vertical GRAM Start Address
LCD_WriteReg(0x60, 0xA700); // Gate Scan Line
LCD_WriteReg(0x61, 0x0001); // NDL,VLE, REV
LCD_WriteReg(0x6A, 0x0000); // set scrolling line
//-------------- Partial Display Control ---------//
LCD_WriteReg(0x80, 0x0000);
LCD_WriteReg(0x81, 0x0000);
LCD_WriteReg(0x82, 0x0000);
LCD_WriteReg(0x83, 0x0000);
LCD_WriteReg(0x84, 0x0000);
LCD_WriteReg(0x85, 0x0000);
//-------------- Panel Control -------------------//
LCD_WriteReg(0x90, 0x0010);
LCD_WriteReg(0x92, 0x0600);
LCD_WriteReg(0x07, 0x0133); // 262K color and display ON