//VCI=3.3V //***********************寄存器指令***************************************** void write_command (unsigned char y) // (uchar y,uchar x) { unsigned char i; csb=0; sclb=0; sdi=0; sclb=1; for(i=0;i<8;i++) { sclb=0; if (y&0x80) { sdi=1; } else { sdi=0; } sclb=1; y=y<<1; } csb=1; } //**************************寄存器数据************************************* void write_data(unsigned char w) // (uchar w, uchar v) { unsigned char i; csb=0; sclb=0; sdi=1; sclb=1; for(i=0;i<8;i++) { sclb=0; if (w&0x80) { sdi=1; } else { sdi=0; } sclb=1; w=w<<1; } csb=1; } //********************送显示数据********************************* void write_data2(unsigned char data_l,data_h) { unsigned char a,i,b; csb=0; sclb=0; sdi=1; sclb=1; a=data_l; for(i=0;i<8;i++) { sclb=0; if (a&0x80) { sdi=1; } else { sdi=0; } sclb=1; a=a<<1; } csb=0; sclb=0; sdi=1; sclb=1; b=data_h; for(i=0;i<8;i++) { sclb=0; if (b&0x80) { sdi=1; } else { sdi=0; } sclb=1; b=b<<1; } csb=1; } /*************************************************/ 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); write_command(0x3a); write_data(0x55); //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); } //********************************************************* void ExitSleep (void) { write_command(0x11); delay(120); write_command(0x29); }