/* ---------------------------------------------------------------------------- * ATMEL Microcontroller Software Support * ---------------------------------------------------------------------------- * Copyright (c) 2008, Atmel Corporation * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the disclaimer below. * * Atmel's name may not be used to endorse or promote products derived from * this software without specific prior written permission. * * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ---------------------------------------------------------------------------- */ //------------------------------------------------------------------------------ /// \unit /// /// !Purpose /// /// HX8347 driver /// /// !Usage /// /// Explanation on the usage of the code made available through the header file. //------------------------------------------------------------------------------ //------------------------------------------------------------------------------ // Headers //------------------------------------------------------------------------------ #include #include #ifdef BOARD_LCD_HX8347 #include "hx8347.h" //------------------------------------------------------------------------------ // Types //------------------------------------------------------------------------------ typedef volatile unsigned short REG16; //------------------------------------------------------------------------------ // Definitions //------------------------------------------------------------------------------ /// LCD index register address #define LCD_IR(baseAddr) (*((REG16 *)(baseAddr))) /// LCD status register address #define LCD_SR(baseAddr) (*((REG16 *)(baseAddr))) /// LCD data address #define LCD_D(baseAddr) (*((REG16 *)((unsigned int)(baseAddr) + BOARD_LCD_RS))) /// HX8347 ID code #define HX8347_HIMAXID_CODE 0x47 /// HX8347 LCD Registers #define HX8347_R00H 0x00 #define HX8347_R01H 0x01 #define HX8347_R02H 0x02 #define HX8347_R03H 0x03 #define HX8347_R04H 0x04 #define HX8347_R05H 0x05 #define HX8347_R06H 0x06 #define HX8347_R07H 0x07 #define HX8347_R08H 0x08 #define HX8347_R09H 0x09 #define HX8347_R0AH 0x0A #define HX8347_R0CH 0x0C #define HX8347_R0DH 0x0D #define HX8347_R0EH 0x0E #define HX8347_R0FH 0x0F #define HX8347_R10H 0x10 #define HX8347_R11H 0x11 #define HX8347_R12H 0x12 #define HX8347_R13H 0x13 #define HX8347_R14H 0x14 #define HX8347_R15H 0x15 #define HX8347_R16H 0x16 #define HX8347_R18H 0x18 #define HX8347_R19H 0x19 #define HX8347_R1AH 0x1A #define HX8347_R1BH 0x1B #define HX8347_R1CH 0x1C #define HX8347_R1DH 0x1D #define HX8347_R1EH 0x1E #define HX8347_R1FH 0x1F #define HX8347_R20H 0x20 #define HX8347_R21H 0x21 #define HX8347_R22H 0x22 #define HX8347_R23H 0x23 #define HX8347_R24H 0x24 #define HX8347_R25H 0x25 #define HX8347_R26H 0x26 #define HX8347_R27H 0x27 #define HX8347_R28H 0x28 #define HX8347_R29H 0x29 #define HX8347_R2AH 0x2A #define HX8347_R2BH 0x2B #define HX8347_R2CH 0x2C #define HX8347_R2DH 0x2D #define HX8347_R35H 0x35 #define HX8347_R36H 0x36 #define HX8347_R37H 0x37 #define HX8347_R38H 0x38 #define HX8347_R39H 0x39 #define HX8347_R3AH 0x3A #define HX8347_R3BH 0x3B #define HX8347_R3CH 0x3C #define HX8347_R3DH 0x3D #define HX8347_R3EH 0x3E #define HX8347_R40H 0x40 #define HX8347_R41H 0x41 #define HX8347_R42H 0x42 #define HX8347_R43H 0x43 #define HX8347_R44H 0x44 #define HX8347_R45H 0x45 #define HX8347_R46H 0x46 #define HX8347_R47H 0x47 #define HX8347_R48H 0x48 #define HX8347_R49H 0x49 #define HX8347_R4AH 0x4A #define HX8347_R4BH 0x4B #define HX8347_R4CH 0x4C #define HX8347_R4DH 0x4D #define HX8347_R4EH 0x4E #define HX8347_R4FH 0x4F #define HX8347_R50H 0x50 #define HX8347_R51H 0x51 #define HX8347_R64H 0x64 #define HX8347_R65H 0x65 #define HX8347_R66H 0x66 #define HX8347_R67H 0x67 #define HX8347_R70H 0x70 #define HX8347_R72H 0x72 #define HX8347_R90H 0x90 #define HX8347_R91H 0x91 #define HX8347_R93H 0x93 #define HX8347_R94H 0x94 #define HX8347_R95H 0x95 //------------------------------------------------------------------------------ // External functions //------------------------------------------------------------------------------ // External delay 1 ms function extern void DelayMS(unsigned int ms); #define Delay(ms) DelayMS(ms) //------------------------------------------------------------------------------ // Global functions //------------------------------------------------------------------------------ //------------------------------------------------------------------------------ /// Write data to LCD Register. /// \param pLcdBase LCD base address. /// \param reg Register address. /// \param data Data to be written. //------------------------------------------------------------------------------ void LCD_WriteReg(void *pLcdBase, unsigned char reg, unsigned short data) { LCD_IR(pLcdBase) = reg; LCD_D(pLcdBase) = data; } //------------------------------------------------------------------------------ /// Read data from LCD Register. /// \param pLcdBase LCD base address. /// \param reg Register address. /// \return data Data to be read. //------------------------------------------------------------------------------ unsigned short LCD_ReadReg(void *pLcdBase, unsigned char reg) { LCD_IR(pLcdBase) = reg; return LCD_D(pLcdBase); } //------------------------------------------------------------------------------ /// Read LCD status Register. /// \param pLcdBase LCD base address. /// \param reg Register address. /// \return data Status Data. //------------------------------------------------------------------------------ unsigned short LCD_ReadStatus(void *pLcdBase) { return LCD_SR(pLcdBase); } //------------------------------------------------------------------------------ /// Prepare to write GRAM data. /// \param pLcdBase LCD base address. //------------------------------------------------------------------------------ void LCD_WriteRAM_Prepare(void *pLcdBase) { LCD_IR(pLcdBase) = HX8347_R22H; } //------------------------------------------------------------------------------ /// Write data to LCD GRAM. /// \param pLcdBase LCD base address. /// \param color 16-bits RGB color. //------------------------------------------------------------------------------ void LCD_WriteRAM(void *pLcdBase, unsigned short color) { // Write 16-bit GRAM Reg LCD_D(pLcdBase) = color; } //------------------------------------------------------------------------------ /// Prepare to read GRAM data. /// \param pLcdBase LCD base address. //------------------------------------------------------------------------------ void LCD_ReadRAM_Prepare(void *pLcdBase) { LCD_IR(pLcdBase) = HX8347_R22H; } //------------------------------------------------------------------------------ /// Read GRAM data. /// \param pLcdBase LCD base address. /// \return 16-bits RGB color. //------------------------------------------------------------------------------ unsigned short LCD_ReadRAM(void *pLcdBase) { // Read 16-bit GRAM Reg return LCD_D(pLcdBase); } //------------------------------------------------------------------------------ /// Dump register data. /// \param pLcdBase LCD base address. /// \param startAddr Register start address. /// \param endAddr Register end address. //------------------------------------------------------------------------------ void LCD_DumpReg(void *pLcdBase, unsigned char startAddr, unsigned char endAddr) { unsigned short tmp; unsigned char addr; for (addr = startAddr; addr <= endAddr; addr++) { tmp = LCD_ReadReg(pLcdBase, addr); printf("LCD.r 0x%x = 0x%x\n\r", addr, tmp); } } //------------------------------------------------------------------------------ /// Initialize the LCD controller. /// \param pLcdBase LCD base address. //------------------------------------------------------------------------------ void LCD_Initialize(void *pLcdBase) { unsigned short chipid; // Check HX8347 chipid chipid = LCD_ReadReg(pLcdBase, HX8347_R67H); if(chipid != HX8347_HIMAXID_CODE) { printf("Read HX8347 chip ID error, skip initialization.\r\n"); return ; } // Start internal OSC LCD_WriteReg(pLcdBase, HX8347_R19H, 0x49); // OSCADJ=10 0000, OSD_EN=1 //60Hz LCD_WriteReg(pLcdBase, HX8347_R93H, 0x0C); // RADJ=1100 // Power on flow LCD_WriteReg(pLcdBase, HX8347_R44H, 0x4D); // VCM=100 1101 LCD_WriteReg(pLcdBase, HX8347_R45H, 0x11); // VDV=1 0001 LCD_WriteReg(pLcdBase, HX8347_R20H, 0x40); // BT=0100 LCD_WriteReg(pLcdBase, HX8347_R1DH, 0x07); // VC1=111 LCD_WriteReg(pLcdBase, HX8347_R1EH, 0x00); // VC3=000 LCD_WriteReg(pLcdBase, HX8347_R1FH, 0x04); // VRH=0100 LCD_WriteReg(pLcdBase, HX8347_R1CH, 0x04); // AP=100 LCD_WriteReg(pLcdBase, HX8347_R1BH, 0x10); // GASENB=0, PON=1, DK=0, XDK=0, DDVDH_TRI=0, STB=0 Delay(50); LCD_WriteReg(pLcdBase, HX8347_R43H, 0x80); // Set VCOMG=1 Delay(50); // Gamma for CMO 2.8 LCD_WriteReg(pLcdBase, HX8347_R46H, 0x95); LCD_WriteReg(pLcdBase, HX8347_R47H, 0x51); LCD_WriteReg(pLcdBase, HX8347_R48H, 0x00); LCD_WriteReg(pLcdBase, HX8347_R49H, 0x36); LCD_WriteReg(pLcdBase, HX8347_R4AH, 0x11); LCD_WriteReg(pLcdBase, HX8347_R4BH, 0x66); LCD_WriteReg(pLcdBase, HX8347_R4CH, 0x14); LCD_WriteReg(pLcdBase, HX8347_R4DH, 0x77); LCD_WriteReg(pLcdBase, HX8347_R4EH, 0x13); LCD_WriteReg(pLcdBase, HX8347_R4FH, 0x4C); LCD_WriteReg(pLcdBase, HX8347_R50H, 0x46); LCD_WriteReg(pLcdBase, HX8347_R51H, 0x46); //240x320 window setting LCD_WriteReg(pLcdBase, HX8347_R02H, 0x00); // Column address start2 LCD_WriteReg(pLcdBase, HX8347_R03H, 0x00); // Column address start1 LCD_WriteReg(pLcdBase, HX8347_R04H, 0x00); // Column address end2 LCD_WriteReg(pLcdBase, HX8347_R05H, 0xEF); // Column address end1 LCD_WriteReg(pLcdBase, HX8347_R06H, 0x00); // Row address start2 LCD_WriteReg(pLcdBase, HX8347_R07H, 0x00); // Row address start1 LCD_WriteReg(pLcdBase, HX8347_R08H, 0x01); // Row address end2 LCD_WriteReg(pLcdBase, HX8347_R09H, 0x3F); // Row address end1 // Display Setting LCD_WriteReg(pLcdBase, HX8347_R01H, 0x06); // IDMON=0, INVON=1, NORON=1, PTLON=0 LCD_WriteReg(pLcdBase, HX8347_R16H, 0xC8); // MY=1, MX=1, MV=0, BGR=1 LCD_WriteReg(pLcdBase, HX8347_R23H, 0x95); // N_DC=1001 0101 LCD_WriteReg(pLcdBase, HX8347_R24H, 0x95); // P_DC=1001 0101 LCD_WriteReg(pLcdBase, HX8347_R25H, 0xFF); // I_DC=1111 1111 LCD_WriteReg(pLcdBase, HX8347_R27H, 0x06); // N_BP=0000 0110 LCD_WriteReg(pLcdBase, HX8347_R28H, 0x06); // N_FP=0000 0110 LCD_WriteReg(pLcdBase, HX8347_R29H, 0x06); // P_BP=0000 0110 LCD_WriteReg(pLcdBase, HX8347_R2AH, 0x06); // P_FP=0000 0110 LCD_WriteReg(pLcdBase, HX8347_R2CH, 0x06); // I_BP=0000 0110 LCD_WriteReg(pLcdBase, HX8347_R2DH, 0x06); // I_FP=0000 0110 LCD_WriteReg(pLcdBase, HX8347_R3AH, 0x01); // N_RTN=0000, N_NW=001 LCD_WriteReg(pLcdBase, HX8347_R3BH, 0x01); // P_RTN=0000, P_NW=001 LCD_WriteReg(pLcdBase, HX8347_R3CH, 0xF0); // I_RTN=1111, I_NW=000 LCD_WriteReg(pLcdBase, HX8347_R3DH, 0x00); // DIV=00 LCD_WriteReg(pLcdBase, HX8347_R3EH, 0x38); // SON=38h LCD_WriteReg(pLcdBase, HX8347_R40H, 0x0F); // GDON=0Fh LCD_WriteReg(pLcdBase, HX8347_R41H, 0xF0); // GDOF=F0h } //------------------------------------------------------------------------------ /// Turn on the LCD. /// \param pLcdBase LCD base address. //------------------------------------------------------------------------------ void LCD_On(void *pLcdBase) { // Display ON Setting LCD_WriteReg(pLcdBase, HX8347_R90H, 0x7F); // SAP=0111 1111 LCD_WriteReg(pLcdBase, HX8347_R26H, 0x04); // GON=0, DTE=0, D=01 Delay(100); LCD_WriteReg(pLcdBase, HX8347_R26H, 0x24); // GON=1, DTE=0, D=01 LCD_WriteReg(pLcdBase, HX8347_R26H, 0x2C); // GON=1, DTE=0, D=11 Delay(100); LCD_WriteReg(pLcdBase, HX8347_R26H, 0x3C); // GON=1, DTE=1, D=11 } //------------------------------------------------------------------------------ /// Turn off the LCD. /// \param pLcdBase LCD base address. //------------------------------------------------------------------------------ void LCD_Off(void *pLcdBase) { LCD_WriteReg(pLcdBase, HX8347_R90H, 0x00); // SAP=0000 0000 LCD_WriteReg(pLcdBase, HX8347_R26H, 0x00); // GON=0, DTE=0, D=00 } //------------------------------------------------------------------------------ /// Set cursor of LCD srceen. /// \param pLcdBase LCD base address. /// \param x X-coordinate of upper-left corner on LCD. /// \param y Y-coordinate of upper-left corner on LCD. //------------------------------------------------------------------------------ void LCD_SetCursor(void *pLcdBase, unsigned short x, unsigned short y) { unsigned char x1, x2, y1, y2; x1 = x & 0xff; x2 = (x & 0xff00) >>8; y1 = y & 0xff; y2 = (y & 0xff00) >>8; LCD_WriteReg(pLcdBase, HX8347_R02H, x2); // column high LCD_WriteReg(pLcdBase, HX8347_R03H, x1); // column low LCD_WriteReg(pLcdBase, HX8347_R06H, y2); // row high LCD_WriteReg(pLcdBase, HX8347_R07H, y1); // row low } //------------------------------------------------------------------------------ /// Set the window size user can access. /// \param pLcdBase LCD base address. /// \param x_start X-coordinate of upper-left corner on LCD. /// \param y_start Y-coordinate of upper-left corner on LCD. /// \param x_end X-coordinate of bottom-right corner on LCD. /// \param y_end Y-coordinate of bottom-right corner on LCD. //------------------------------------------------------------------------------ void LCD_SetWindow(void *pLcdBase,unsigned short x_start, unsigned short y_start,unsigned short x_end, unsigned short y_end) { unsigned char x1, x2, y1, y2; x1 = x_start & 0xff; x2 = (x_start & 0xff00) >>8; y1 = y_start & 0xff; y2 = (y_start & 0xff00) >>8; LCD_WriteReg(pLcdBase, 0x02, x2); // column high LCD_WriteReg(pLcdBase, 0x03, x1); // column low LCD_WriteReg(pLcdBase, 0x06, y2); // row high LCD_WriteReg(pLcdBase, 0x07, y1); // row low x1 = x_end & 0xff; x2 = (x_end & 0xff00) >>8; y1 = y_end & 0xff; y2 = (y_end & 0xff00) >>8; LCD_WriteReg(pLcdBase, 0x04, x2); // column high LCD_WriteReg(pLcdBase, 0x05, x1); // column low LCD_WriteReg(pLcdBase, 0x08, y2); // row high LCD_WriteReg(pLcdBase, 0x09, y1); // row low } #endif //#ifdef BOARD_LCD_HX8347