//--------------------------------------------------------- /* Program snippet for writing to Newhaven Display 3.5" TFT (c)2012 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); void TFT_35M_Init(void); void TFT_35M_Write_Command(unsigned char command); void TFT_35M_Write_Data(unsigned char data1); void TFT_35M_Command_Write(unsigned char REG,unsigned char VALUE); void TFT_35M_SendData(unsigned long color); void TFT_35M_WindowSet(unsigned int s_x,unsigned int e_x,unsigned int s_y,unsigned int e_y); void TFT_35M_FULL_ON(unsigned long dat); /******************************************************************************* * Function Name : TFT_35M_delay * Description : Short delay * Input : time * Output : None * Return : None *******************************************************************************/ void TFT_35M_delay(int time) { int i,j; for(i=0;i<(time^1000);i++){ for(j=0;j<(time^1000);j++){;}} } /******************************************************************************* * Function Name : TFT_35M_demo * Description : Loops through images on SD Card * Input : None * Output : None * Return : None *******************************************************************************/ int TFT_35M_demo(void) { char filename[18] = "3_5_320240MF_"; char filetype[4] = ".bmp"; char filenumber[1] = "0"; int i,n,result; char image = 0x30; UINT blen = sizeof(Buff); memset(Buff,3,sizeof(Buff)); while(1){ //continuous loop filename[13]='\0'; filenumber[0] = image; strncat(filename,filenumber,1); strncat(filename,filetype,4); //puts file number into string= "3_5_320240MF_0.bmp" //... //-----------MOUNT AND READ FROM SD CARD code removed //... TFT_35M_Init(); //initialize TFT TFT_35M_WindowSet(0x0000,0x013f,0x0000,0x00ef); //set window TFT_35M_Write_Command(0x2c); //write start GPIO_SetBits(GPIOC, RS); //RS=1 : write data for(n=0;n<32;n++){ //read from file 128 times, 7200 bytes each time f_read(&File1, Buff, 7200, &blen); // read line of pixels for(i=0;i<7200;i++){ GPIO_SetBits(GPIOC, nWR); GPIO_Write(GPIOB, Buff[i]); GPIO_ResetBits(GPIOC, nWR); } } //read next 7200 bytes //... //-----------CLOSE SD CARD FILE code removed //... UILCD_SetCursor(0,0);UILCD_DisplayString("Press SEL button");UILCD_SetCursor(1,0);UILCD_DisplayString("for next file. "); while(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_2)!=0){;} image++; //... //----------- OPEN SD CARD FILE code removed //... } 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_35M_delay(10); GPIO_WriteBit(GPIOC, RES, Bit_SET); delay(100); TFT_35M_delay(10); TFT_35M_Write_Command(0x01); //Software Reset delay(10); TFT_35M_delay(10); TFT_35M_Write_Command(0x01); //Software Reset delay(10); TFT_35M_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(0x3a,0x60); // SET R G B format = 6 6 6 TFT_35M_Write_Command(0xe6); //SET PCLK freq=4.94MHz ; pixel clock frequency GPIO_SetBits(GPIOC, RS); TFT_35M_Write_Data(0x0a); TFT_35M_Write_Data(0x3d); TFT_35M_Write_Data(0x70); 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 VBP 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(0x48); TFT_35M_Write_Data(0x00); //SET VBP=19 TFT_35M_Write_Data(0x0b); 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_SendData(unsigned long color) { GPIO_SetBits(GPIOC, RS); GPIO_Write(GPIOB, (color>>16)); GPIO_ResetBits(GPIOC, nWR); GPIO_SetBits(GPIOC, nWR); GPIO_Write(GPIOB, (color>>8)); GPIO_ResetBits(GPIOC, nWR); GPIO_SetBits(GPIOC, nWR); GPIO_Write(GPIOB, (color)); GPIO_ResetBits(GPIOC, nWR); GPIO_SetBits(GPIOC, nWR); } 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); } void TFT_35M_FULL_ON(unsigned long dat) { unsigned long x; TFT_35M_WindowSet(0x0000,0x013f,0x0000,0x00ef); TFT_35M_Write_Command(0x2c); for(x=0;x<307200;x++) { TFT_35M_SendData(dat); } } void TFT_35M_QUADS(void) { unsigned int i,j; TFT_35M_WindowSet(0x0000,0x013f,0x0000,0x00ef); TFT_35M_Write_Command(0x2c); for(j= 0 ;j<120;j++) { for(i=0;i<160;i++) { TFT_35M_SendData(0x0000FF); //blue } for(i=0;i<160;i++) { TFT_35M_SendData(0xFF0000); //red } } for(j= 0 ;j<120;j++) { for(i=0;i<160;i++) { TFT_35M_SendData(0xFFFF00); //yellow } for(i=0;i<160;i++) { TFT_35M_SendData(0x00FF00); //green } } } /*-------------------------------------------------------*/