NOTE:VCI=3.3V,使用RGB接口必需要用SPI对LCD进行初始化. //************************指令***************************** void write_command (unsigned char y) // (uchar y,uchar x) { unsigned char i; cs=0; rs=0; for(i=0;i<8;i++) { scl=0; if (y&0x80) { sdi=1; } else { sdi=0; } scl=1; y=y<<1; } cs=1; } //************************************数据*************************** void write_data(unsigned char w) // (uchar w, uchar v) { unsigned char i; cs=0; rs=1; for(i=0;i<8;i++) { scl=0; if (w&0x80) { sdi=1; } else { sdi=0; } scl=1; w=w<<1; } cs=1; } /*************************************************/ void initi(void) { res=1; delay(1); res=0; delay(10); res=1; delay(120); //--------------------------------ST7789S Frame rate setting----------------------------------// write_command(0x36); // Memory Access Control write_data(0x00); //-------------ST7789V Frame rate setting-----------// write_command(0xb2); write_data(0x08); write_data(0x08); write_data(0x00); write_data(0X22); write_data(0X22); write_command(0xb7); write_data(0x35); //--------------ST7789V Power setting---------------// write_command(0xBB);//VCOM write_data(0x3E); write_command(0xC0); //Power control write_data(0x2c); write_command(0xC2); write_data(0X01); write_command(0xC3); write_data(0X09);//0D gvdd write_command(0xC4); write_data(0X20); write_command(0xC6); write_data(0X0F);//0x0F write_command(0xd0); write_data(0Xa4); write_data(0Xa1); //---------------ST7789V gamma setting-------------// write_command(0xE0); //Set Gamma write_data(0xF0); write_data(0x03); write_data(0x05); write_data(0x08); write_data(0x08); write_data(0x05); write_data(0x1F); write_data(0X44); write_data(0x2F); write_data(0x14); write_data(0x0B); write_data(0x0A); write_data(0x06); write_data(0x0D); write_command(0XE1); //Set Gamma write_data(0xF0); write_data(0x03); write_data(0x06); write_data(0x05); write_data(0x04); write_data(0x12); write_data(0x1F); write_data(0x53); write_data(0x2F); write_data(0x27); write_data(0x0A); write_data(0x0A); write_data(0x05); write_command(0x21); //反显 //*********SET RGB Interfae*************** write_command(0xB0); write_data(0x11); //set RGB interface and DE mode. write_data(0x00); write_data(0x00); write_command(0xB1); write_data(0x40); // set DE mode ; SET Hs,Vs,DE,DOTCLK signal polarity write_data(0x00); write_data(0x00); write_command(0x3a); write_data(0x50); //18 RGB ,55-16BIT RGB //************************ write_command(0x2A); //Frame rate control write_data(0x00); write_data(0x00); write_data(0x00); write_data(0xEF); write_command(0x2B); //Display function control write_data(0x00); write_data(0x00); write_data(0x01); write_data(0x3F); write_command(0x11); delay(120); //Delay 120ms write_command(0x29); //display on write_command(0x2c); } //********************************************************************************************* void EnterSleep (void) { write_command(0x28); delay(20); write_command(0x10); RGB_OFF(); } //********************************************************* void ExitSleep (void) { RGB_ON(); delay(30); write_command(0x11); delay(120); write_command(0x29); }