//--------------------------------------------------------- /* Program excerpt for: NHDev with NHD-3.5-320240MF-ATXL#-1 using SSD1963 (c)2010 Curt Lagerstam - Newhaven Display International, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. */ //--------------------------------------------------------- int TFT_35M_demo(void) { char filename[18] = "3_5_320240MF_"; char filetype[4] = ".bmp"; char filenumber[1] = "0"; //****NHDev code omitted**** while(1){ TFT_35M_Init(); //Initialize display if(openSD(filename)==0x30) //if file doesn't open, do nothing {while(1);} seekSD(108); //seek past bmp header bytes TFT_35M_Write_Command(0x28); //SET display off TFT_35M_WindowSet(0x0000,0x013f,0x0000,0x00ef); TFT_35M_Write_Command(0x2c); //write memory start GPIO_SetBits(GPIOC, RS); //set RS = data for(n=0;n<5;n++){ //320x240xRGB = 225KB per screen f_read(&File1, Buff, 46080, &blen); //write 1/5 of screen per loop = 46080bytes for(i=0;i<46080;i++){ GPIO_SetBits(GPIOC, nWR); GPIO_Write(GPIOB, Buff[i]); //write bytes to display GPIO_ResetBits(GPIOC, nWR); } } TFT_35M_Write_Command(0x29); //SET display on //****NHDev code omitted**** } return 1; } /******************************************************************************* * Function Name : TFT_35M_Init * Description : Initializes LCD. * Input : None * Output : None * Return : None *******************************************************************************/ void TFT_35M_Init(void) { GPIO_ResetBits(GPIOC, CS1); GPIO_SetBits(GPIOC, nRD); GPIO_ResetBits(GPIOC, nWR); GPIO_WriteBit(GPIOC, RES, Bit_RESET); delay(5); TFT_delay(10); GPIO_WriteBit(GPIOC, RES, Bit_SET); delay(100); TFT_delay(10); TFT_35M_Write_Command(0x01); //Software Reset delay(10); TFT_delay(10); TFT_35M_Write_Command(0x01); //Software Reset delay(10); TFT_delay(10); TFT_35M_Command_Write(0xe0,0x01); //START PLL TFT_35M_Command_Write(0xe0,0x03); //LOCK PLL TFT_35M_Write_Command(0xb0); //SET LCD MODE SET TFT 18Bits MODE GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x0c); //SET TFT MODE & hsync+Vsync+DEN MODE TFT_35M_Write_Data(0x80); //SET TFT MODE & hsync+Vsync+DEN MODE TFT_35M_Write_Data(0x01); //SET horizontal size=320-1 HightByte TFT_35M_Write_Data(0x3f); //SET horizontal size=320-1 LowByte TFT_35M_Write_Data(0x00); //SET vertical size=240-1 HightByte TFT_35M_Write_Data(0xef); //SET vertical size=240-1 LowByte TFT_35M_Write_Data(0x00); //SET even/odd line RGB seq.=RGB TFT_35M_Command_Write(0xf0,0x00); //SET pixel data I/F format=8bit TFT_35M_Command_Write(0x36,0x09); // SET Address Mode; RGB->BGR, flip vertical TFT_35M_Command_Write(0x3a,0x60); // SET R G B format = 6 6 6 TFT_35M_Write_Command(0xe6); //SET PCLK freq GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x01); TFT_35M_Write_Data(0xb4); TFT_35M_Write_Data(0xe7); TFT_35M_Write_Command(0xb4); //SET HBP, GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x01); //SET HSYNC Total=440 TFT_35M_Write_Data(0xb8); TFT_35M_Write_Data(0x00); //SET HBP 68 TFT_35M_Write_Data(0x46); TFT_35M_Write_Data(0x0f); //SET HBP 16=15+1 TFT_35M_Write_Data(0x00); //SET Hsync pulse start position TFT_35M_Write_Data(0x00); TFT_35M_Write_Data(0x00); //SET Hsync pulse subpixel start position TFT_35M_Write_Command(0xb6); //SET VBP, GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x01); //SET Vsync total TFT_35M_Write_Data(0x08); TFT_35M_Write_Data(0x00); //SET VBP=19 TFT_35M_Write_Data(0x0d); TFT_35M_Write_Data(0x07); //SET Vsync pulse 8=7+1 TFT_35M_Write_Data(0x00); //SET Vsync pulse start position TFT_35M_Write_Data(0x00); TFT_35M_Write_Command(0x2a); //SET column address GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x00); //SET start column address=0 TFT_35M_Write_Data(0x00); TFT_35M_Write_Data(0x01); //SET end column address=319 TFT_35M_Write_Data(0x3f); TFT_35M_Write_Command(0x2b); //SET page address GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x00); //SET start page address=0 TFT_35M_Write_Data(0x00); TFT_35M_Write_Data(0x00); //SET end page address=239 TFT_35M_Write_Data(0xef); TFT_35M_Write_Command(0x13); //SET normal mode TFT_35M_Write_Command(0x29); //SET display on } void TFT_35M_Write_Command(unsigned char command) { GPIO_Write(GPIOB, command); GPIO_ResetBits(GPIOC, RS); GPIO_ResetBits(GPIOC, nWR); GPIO_SetBits(GPIOC, nWR); } void TFT_35M_Write_Data(unsigned char data1) { GPIO_Write(GPIOB, data1); GPIO_ResetBits(GPIOC, nWR); GPIO_SetBits(GPIOC, nWR); } void TFT_35M_Command_Write(unsigned char REG,unsigned char VALUE) { TFT_35M_Write_Command(REG); GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(VALUE); } void TFT_35M_WindowSet(unsigned int s_x,unsigned int e_x,unsigned int s_y,unsigned int e_y) { TFT_35M_Write_Command(0x2a); //SET page address GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data((s_x)>>8); //SET start page address=0 TFT_35M_Write_Data(s_x); TFT_35M_Write_Data((e_x)>>8); //SET end page address=319 TFT_35M_Write_Data(e_x); TFT_35M_Write_Command(0x2b); //SET column address GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data((s_y)>>8); //SET start column address=0 TFT_35M_Write_Data(s_y); TFT_35M_Write_Data((e_y)>>8); //SET end column address=239 TFT_35M_Write_Data(e_y); }