/* E40RB-I-MW430-CB MIPI DSI TFT Display Driver File Created on March 23, 2026, 1:40 PM @Company Focus LCDs LCDs Made Simple www.focuslcds.com @File Name E40RB-I-MW430-CB-2LANE-MIPI-CODE.txt @Summary This is the driver source file for the TFT Display Display: 4.0" TFT LCD 480 x 800 Controller Chip: ST7701S Interface: MIPI DSI MCU/MPU: Generic @Version Version 1.0.0 (Semantic Versioning 2.0.0) @Description This source file provides initialization for the 4.0" TFT display. */ /*******************************************************************************/ /******************************************************************************* (c) 2023 Focus LCDs and its subsidiaries. You may use this software and any derivatives exclusively with Focus LCDs products. THIS SOFTWARE IS SUPPLIED BY FOCUS LCDS "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE, OR ITS INTERACTION WITH FOCUS LCDS PRODUCTS, COMBINATION WITH ANY OTHER PRODUCTS, OR USE IN ANY APPLICATION. IN NO EVENT WILL FOCUS LCDS BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF FOCUS LCDS HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, FOCUS LCDS' TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, THAT YOU HAVE PAID DIRECTLY TO FOCUSLCDS FOR THIS SOFTWARE. FOCUS LCDS PROVIDES THIS SOFTWARE CONDITIONALLY UPON YOUR ACCEPTANCE OF THESE TERMS. *******************************************************************************/ //**************************// NOTE:VCI=3.3V,IOVCC=1.8V, Display resolution:480*800 params->dsi.vertical_sync_active=4 params->dsi.vertical_backporch=20 params->dsi.vertical_frontporch=10 params->dsi.horizontal_sync_active=4 params->dsi.horizontal_backporch=35 params->dsi.horizontal_frontporch=20 params->RGB_CLOCK=(27) Frame Rate=60HZ //************************************** //--------------------initial code-----------------------------------------// void LCD_Init(void) { RST=1; delay(1) //MS RST=0; delay(10);//MS RST=1; delay(120)//MS //*******************************/ write_command(0x11); //OUT SLEEP delay(120); /*-------------------------------Bank0 Setting--------------------------------*/ /*--------------------------Display Control setting---------------------------*/ write_command(0xFF); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x10); write_command(0xC0); //480*800 write_data(0x63); write_data(0x00); write_command(0xC1); write_data(0x11); write_data(0x02); write_command(0xC2); //Inversion selection write_data(0x37); //31 2-DOT 37-Column write_data(0x08); //write_command(0xC7); //write_data(0x04); write_command(0xCC); write_data(0x18); //**********GAMMA SET***************// write_command(0xB0); write_data(0x40); write_data(0xC9); write_data(0x91); write_data(0x0D); write_data(0x12); write_data(0x07); write_data(0x02); write_data(0x09); write_data(0x09); write_data(0x1F); write_data(0x04); write_data(0x50); write_data(0x0F); write_data(0xE4); write_data(0x29); write_data(0xDF); write_command(0xB1); write_data(0x40); write_data(0xCB); write_data(0xD0); write_data(0x11); write_data(0x92); write_data(0x07); write_data(0x00); write_data(0x08); write_data(0x07); write_data(0x1C); write_data(0x06); write_data(0x53); write_data(0x12); write_data(0x63); write_data(0xEB); write_data(0xDF); /*-----------------------------End Gamma Setting------------------------------*/ /*------------------------End Display Control setting-------------------------*/ /*-----------------------------Bank0 Setting End-----------------------------*/ /*-------------------------------Bank1 Setting--------------------------------*/ /*--------------------- Power Control Registers Initial ----------------------*/ write_command(0xFF); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x11); write_command(0xB0); write_data(0x65); /*--------------------------------Vcom Setting--------------------------------*/ write_command(0xB1); write_data(0x6A);//65+++ /*------------------------------End Vcom Setting------------------------------*/ write_command(0xB2);//VGH write_data(0x87); write_command(0xB3); write_data(0x80); write_command(0xB5); //VGL write_data(0x49); write_command(0xB7); write_data(0x85); write_command(0xB8); //avdd write_data(0x20); write_command(0xB9); //Power Control 2 write_data(0x10); write_command(0xC1); write_data(0x78); write_command(0xC2); write_data(0x78); write_command(0xD0); write_data(0x88); delay(100); /*--------------------End Power Control Registers Initial --------------------*/ //********GIP SET********************/// write_command(0xE0); write_data(0x00); write_data(0x00); write_data(0x02); write_command(0xE1); write_data(0x08); write_data(0x00); write_data(0x0A); write_data(0x00); write_data(0x07); write_data(0x00); write_data(0x09); write_data(0x00); write_data(0x00); write_data(0x33); write_data(0x33); write_command(0xE2); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_command(0xE3); write_data(0x00); write_data(0x00); write_data(0x33); write_data(0x33); write_command(0xE4); write_data(0x44); write_data(0x44); write_command(0xE5); write_data(0x0E); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x10); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0A); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0C); write_data(0x60); write_data(0xA0); write_data(0xA0); write_command(0xE6); write_data(0x00); write_data(0x00); write_data(0x33); write_data(0x33); write_command(0xE7); write_data(0x44); write_data(0x44); write_command(0xE8); write_data(0x0D); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0F); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x09); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0B); write_data(0x60); write_data(0xA0); write_data(0xA0); write_command(0xEB); write_data(0x02); write_data(0x01); write_data(0xE4); write_data(0xE4); write_data(0x44); write_data(0x00); write_data(0x40); write_command(0xEC); write_data(0x02); write_data(0x01); write_command(0xED); write_data(0xAB); write_data(0x89); write_data(0x76); write_data(0x54); write_data(0x01); write_data(0xFF); write_data(0xFF); write_data(0xFF); write_data(0xFF); write_data(0xFF); write_data(0xFF); write_data(0x10); write_data(0x45); write_data(0x67); write_data(0x98); write_data(0xBA); write_command(0xFF); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x00); //write_command(0x35);//TE ON write_command(0x36); write_data(0x00);//10-180 write_command(0x3A); write_data(0x70); write_command(0x29); //DISP ON delay(25); //******************************************* void EnterSleep (void) { write_command(0x28); delay(10); write_command(0x10); } //********************************************************* void ExitSleep (void) { write_command(0x11); delay(120); write_command(0x29); }