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; } //**************LCD******************************* void initi(void) { res=1; delay(1); res=0; delay(10); res=1; delay(120); //--------------------------------ST7789S Frame rate setting----------------------------------// write_command(0xb2); write_data(0x0c); write_data(0x0c); write_data(0x00); write_data(0x33); write_data(0x33); write_command(0xb7); write_data(0x35); write_command(0x3A); write_data(0x55); //---------------------------------ST7789S Power setting--------------------------------------// write_command(0xbb); write_data(0x30);//vcom write_command(0xc3); write_data(0x1C);//17调深浅 write_command(0xc4); write_data(0x18); write_command(0xc6); write_data(0x0f); write_command(0xd0); write_data(0xa4); write_data(0xa2); //--------------------------------ST7789S gamma setting---------------------------------------// write_command(0xe0); write_data(0xf0); write_data(0x00); write_data(0x0a); write_data(0x10); write_data(0x12); write_data(0x1b); write_data(0x39); write_data(0x44); write_data(0x47); write_data(0x28); write_data(0x12); write_data(0x10); write_data(0x16); write_data(0x1b); write_command(0xe1); write_data(0xf0); write_data(0x00); write_data(0x0a); write_data(0x10); write_data(0x11); write_data(0x1a); write_data(0x3b); write_data(0x34); write_data(0x4e); write_data(0x3a); write_data(0x17); write_data(0x16); write_data(0x21); write_data(0x22); //*********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(0x66); //18 RGB ,55-16BIT RGB //************************ 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); }