I8080 8BIT 点亮 480x800 屏
注意芯片型号！
首先确认芯片型号是否为 V821L2-WXX，其他型号不支持 I8080 显示。
此次适配的 I8080 屏为 FPC39703MS-B200-40C-10，使用的是 I8080 8Bit 进行驱动。屏幕IC是 NT35510
引脚配置如下：
| V821 | 引脚复用功能 | TFT 模块 |
|---|---|---|
| PD1—PD8 | LCD-D3—LCD-D12 | D0—D7 |
| PD12 | LCD-VSYNC | TE |
| PD11 | LCD-HSYNC | RD |
| PD9 | LCD-CLK | WR |
| PD10 | LCD-DE | DC |
| PD14 | GPIO OUTPUT | CS |
| PD19 | GPIO OUTPUT | RESET |
编写 LCD 显示屏驱动
获取屏幕初始化序列
首先询问屏厂提供初始化序列，和屏幕手册。
这里我们使用 8Bit I8080 点屏，使用 8 位的初始化代码：
void LCD_Init(void)
{
RST=1;
Delay(5);
RST=0;
Delay(10);
RST=1;
Delay(120);
//NT35510SH_BOE3.97IPS_24BIT_20141224
WriteComm(0xFF00);WriteData(0x00AA);
WriteComm(0xFF01);WriteData(0x0055);
WriteComm(0xFF02);WriteData(0x00A5);
WriteComm(0xFF03);WriteData(0x0080);
WriteComm(0xF200);WriteData(0x0000);
WriteComm(0xF201);WriteData(0x0084);
WriteComm(0xF202);WriteData(0x0008);
WriteComm(0x6F00);WriteData(0x000A);
WriteComm(0xF400);WriteData(0x0013);
WriteComm(0xFF00);WriteData(0x00AA);
WriteComm(0xFF01);WriteData(0x0055);
WriteComm(0xFF02);WriteData(0x00A5);
WriteComm(0xFF03);WriteData(0x0000);
//Enable Page 1
WriteComm(0xF000);WriteData(0x0055);
WriteComm(0xF001);WriteData(0x00AA);
WriteComm(0xF002);WriteData(0x0052);
WriteComm(0xF003);WriteData(0x0008);
WriteComm(0xF004);WriteData(0x0001);
//AVDD Set AVDD 5.2V
WriteComm(0xB000);WriteData(0x000C);
WriteComm(0xB001);WriteData(0x000C);
WriteComm(0xB002);WriteData(0x000C);
//AVDD ratio
WriteComm(0xB600);WriteData(0x0046);
WriteComm(0xB601);WriteData(0x0046);
WriteComm(0xB602);WriteData(0x0046);
//AVEE -5.2V
WriteComm(0xB100);WriteData(0x000C);
WriteComm(0xB101);WriteData(0x000C);
WriteComm(0xB102);WriteData(0x000C);
//AVEE ratio
WriteComm(0xB700);WriteData(0x0026);
WriteComm(0xB701);WriteData(0x0026);
WriteComm(0xB702);WriteData(0x0026);
//VCL -2.5V
WriteComm(0xB200);WriteData(0x0000);
WriteComm(0xB201);WriteData(0x0000);
WriteComm(0xB202);WriteData(0x0000);
//VCL ratio
WriteComm(0xB800);WriteData(0x0034);
WriteComm(0xB801);WriteData(0x0034);
WriteComm(0xB802);WriteData(0x0034);
//VGH 15V (Free pump)
WriteComm(0xBF00);WriteData(0x0001);
WriteComm(0xB300);WriteData(0x0008);
WriteComm(0xB301);WriteData(0x0008);
WriteComm(0xB302);WriteData(0x0008);
//VGH ratio
WriteComm(0xB900);WriteData(0x0026);
WriteComm(0xB901);WriteData(0x0026);
WriteComm(0xB902);WriteData(0x0026);
//VGL_REG -10V
WriteComm(0xB500);WriteData(0x0008);
WriteComm(0xB501);WriteData(0x0008);
WriteComm(0xB502);WriteData(0x0008);
//WriteComm(0xC200);WriteData(0x0003);
//VGLX ratio
WriteComm(0xBA00);WriteData(0x0036);
WriteComm(0xBA01);WriteData(0x0036);
WriteComm(0xBA02);WriteData(0x0036);
//VGMP/VGSP 4.5V/0V
WriteComm(0xBC00);WriteData(0x0000);
WriteComm(0xBC01);WriteData(0x0080);
WriteComm(0xBC02);WriteData(0x0000);
//VGMN/VGSN -4.5V/0V
WriteComm(0xBD00);WriteData(0x0000);
WriteComm(0xBD01);WriteData(0x0080);
WriteComm(0xBD02);WriteData(0x0000);
//VCOM
WriteComm(0xBE00);WriteData(0x0000);
WriteComm(0xBE01);WriteData(0x0055); // 6A
//Gamma Setting
WriteComm(0xD100);WriteData(0x0000);
WriteComm(0xD101);WriteData(0x0001);
WriteComm(0xD102);WriteData(0x0000);
WriteComm(0xD103);WriteData(0x001C);
WriteComm(0xD104);WriteData(0x0000);
WriteComm(0xD105);WriteData(0x004E);
WriteComm(0xD106);WriteData(0x0000);
WriteComm(0xD107);WriteData(0x006A);
WriteComm(0xD108);WriteData(0x0000);
WriteComm(0xD109);WriteData(0x0085);
WriteComm(0xD10A);WriteData(0x0000);
WriteComm(0xD10B);WriteData(0x00AB);
WriteComm(0xD10C);WriteData(0x0000);
WriteComm(0xD10D);WriteData(0x00C4);
WriteComm(0xD10E);WriteData(0x0000);
WriteComm(0xD10F);WriteData(0x00FC);
WriteComm(0xD110);WriteData(0x0001);
WriteComm(0xD111);WriteData(0x0023);
WriteComm(0xD112);WriteData(0x0001);
WriteComm(0xD113);WriteData(0x0061);
WriteComm(0xD114);WriteData(0x0001);
WriteComm(0xD115);WriteData(0x0094);
WriteComm(0xD116);WriteData(0x0001);
WriteComm(0xD117);WriteData(0x00E4);
WriteComm(0xD118);WriteData(0x0002);
WriteComm(0xD119);WriteData(0x0027);
WriteComm(0xD11A);WriteData(0x0002);
WriteComm(0xD11B);WriteData(0x0029);
WriteComm(0xD11C);WriteData(0x0002);
WriteComm(0xD11D);WriteData(0x0065);
WriteComm(0xD11E);WriteData(0x0002);
WriteComm(0xD11F);WriteData(0x00A6);
WriteComm(0xD120);WriteData(0x0002);
WriteComm(0xD121);WriteData(0x00CA);
WriteComm(0xD122);WriteData(0x0002);
WriteComm(0xD123);WriteData(0x00FD);
WriteComm(0xD124);WriteData(0x0003);
WriteComm(0xD125);WriteData(0x001D);
WriteComm(0xD126);WriteData(0x0003);
WriteComm(0xD127);WriteData(0x004D);
WriteComm(0xD128);WriteData(0x0003);
WriteComm(0xD129);WriteData(0x006A);
WriteComm(0xD12A);WriteData(0x0003);
WriteComm(0xD12B);WriteData(0x0095);
WriteComm(0xD12C);WriteData(0x0003);
WriteComm(0xD12D);WriteData(0x00AC);
WriteComm(0xD12E);WriteData(0x0003);
WriteComm(0xD12F);WriteData(0x00CB);
WriteComm(0xD130);WriteData(0x0003);
WriteComm(0xD131);WriteData(0x00EA);
WriteComm(0xD132);WriteData(0x0003);
WriteComm(0xD133);WriteData(0x00EF);
WriteComm(0xD200);WriteData(0x0000);
WriteComm(0xD201);WriteData(0x0001);
WriteComm(0xD202);WriteData(0x0000);
WriteComm(0xD203);WriteData(0x001C);
WriteComm(0xD204);WriteData(0x0000);
WriteComm(0xD205);WriteData(0x004E);
WriteComm(0xD206);WriteData(0x0000);
WriteComm(0xD207);WriteData(0x006A);
WriteComm(0xD208);WriteData(0x0000);
WriteComm(0xD209);WriteData(0x0085);
WriteComm(0xD20A);WriteData(0x0000);
WriteComm(0xD20B);WriteData(0x00AB);
WriteComm(0xD20C);WriteData(0x0000);
WriteComm(0xD20D);WriteData(0x00C4);
WriteComm(0xD20E);WriteData(0x0000);
WriteComm(0xD20F);WriteData(0x00FC);
WriteComm(0xD210);WriteData(0x0001);
WriteComm(0xD211);WriteData(0x0023);
WriteComm(0xD212);WriteData(0x0001);
WriteComm(0xD213);WriteData(0x0061);
WriteComm(0xD214);WriteData(0x0001);
WriteComm(0xD215);WriteData(0x0094);
WriteComm(0xD216);WriteData(0x0001);
WriteComm(0xD217);WriteData(0x00E4);
WriteComm(0xD218);WriteData(0x0002);
WriteComm(0xD219);WriteData(0x0027);
WriteComm(0xD21A);WriteData(0x0002);
WriteComm(0xD21B);WriteData(0x0029);
WriteComm(0xD21C);WriteData(0x0002);
WriteComm(0xD21D);WriteData(0x0065);
WriteComm(0xD21E);WriteData(0x0002);
WriteComm(0xD21F);WriteData(0x00A6);
WriteComm(0xD220);WriteData(0x0002);
WriteComm(0xD221);WriteData(0x00CA);
WriteComm(0xD222);WriteData(0x0002);
WriteComm(0xD223);WriteData(0x00FD);
WriteComm(0xD224);WriteData(0x0003);
WriteComm(0xD225);WriteData(0x001D);
WriteComm(0xD226);WriteData(0x0003);
WriteComm(0xD227);WriteData(0x004D);
WriteComm(0xD228);WriteData(0x0003);
WriteComm(0xD229);WriteData(0x006A);
WriteComm(0xD22A);WriteData(0x0003);
WriteComm(0xD22B);WriteData(0x0095);
WriteComm(0xD22C);WriteData(0x0003);
WriteComm(0xD22D);WriteData(0x00AC);
WriteComm(0xD22E);WriteData(0x0003);
WriteComm(0xD22F);WriteData(0x00CB);
WriteComm(0xD230);WriteData(0x0003);
WriteComm(0xD231);WriteData(0x00EA);
WriteComm(0xD232);WriteData(0x0003);
WriteComm(0xD233);WriteData(0x00EF);
WriteComm(0xD300);WriteData(0x0000);
WriteComm(0xD301);WriteData(0x0001);
WriteComm(0xD302);WriteData(0x0000);
WriteComm(0xD303);WriteData(0x001C);
WriteComm(0xD304);WriteData(0x0000);
WriteComm(0xD305);WriteData(0x004E);
WriteComm(0xD306);WriteData(0x0000);
WriteComm(0xD307);WriteData(0x006A);
WriteComm(0xD308);WriteData(0x0000);
WriteComm(0xD309);WriteData(0x0085);
WriteComm(0xD30A);WriteData(0x0000);
WriteComm(0xD30B);WriteData(0x00AB);
WriteComm(0xD30C);WriteData(0x0000);
WriteComm(0xD30D);WriteData(0x00C4);
WriteComm(0xD30E);WriteData(0x0000);
WriteComm(0xD30F);WriteData(0x00FC);
WriteComm(0xD310);WriteData(0x0001);
WriteComm(0xD311);WriteData(0x0023);
WriteComm(0xD312);WriteData(0x0001);
WriteComm(0xD313);WriteData(0x0061);
WriteComm(0xD314);WriteData(0x0001);
WriteComm(0xD315);WriteData(0x0094);
WriteComm(0xD316);WriteData(0x0001);
WriteComm(0xD317);WriteData(0x00E4);
WriteComm(0xD318);WriteData(0x0002);
WriteComm(0xD319);WriteData(0x0027);
WriteComm(0xD31A);WriteData(0x0002);
WriteComm(0xD31B);WriteData(0x0029);
WriteComm(0xD31C);WriteData(0x0002);
WriteComm(0xD31D);WriteData(0x0065);
WriteComm(0xD31E);WriteData(0x0002);
WriteComm(0xD31F);WriteData(0x00A6);
WriteComm(0xD320);WriteData(0x0002);
WriteComm(0xD321);WriteData(0x00CA);
WriteComm(0xD322);WriteData(0x0002);
WriteComm(0xD323);WriteData(0x00FD);
WriteComm(0xD324);WriteData(0x0003);
WriteComm(0xD325);WriteData(0x001D);
WriteComm(0xD326);WriteData(0x0003);
WriteComm(0xD327);WriteData(0x004D);
WriteComm(0xD328);WriteData(0x0003);
WriteComm(0xD329);WriteData(0x006A);
WriteComm(0xD32A);WriteData(0x0003);
WriteComm(0xD32B);WriteData(0x0095);
WriteComm(0xD32C);WriteData(0x0003);
WriteComm(0xD32D);WriteData(0x00AC);
WriteComm(0xD32E);WriteData(0x0003);
WriteComm(0xD32F);WriteData(0x00CB);
WriteComm(0xD330);WriteData(0x0003);
WriteComm(0xD331);WriteData(0x00EA);
WriteComm(0xD332);WriteData(0x0003);
WriteComm(0xD333);WriteData(0x00EF);
WriteComm(0xD400);WriteData(0x0000);
WriteComm(0xD401);WriteData(0x0001);
WriteComm(0xD402);WriteData(0x0000);
WriteComm(0xD403);WriteData(0x001C);
WriteComm(0xD404);WriteData(0x0000);
WriteComm(0xD405);WriteData(0x004E);
WriteComm(0xD406);WriteData(0x0000);
WriteComm(0xD407);WriteData(0x006A);
WriteComm(0xD408);WriteData(0x0000);
WriteComm(0xD409);WriteData(0x0085);
WriteComm(0xD40A);WriteData(0x0000);
WriteComm(0xD40B);WriteData(0x00AB);
WriteComm(0xD40C);WriteData(0x0000);
WriteComm(0xD40D);WriteData(0x00C4);
WriteComm(0xD40E);WriteData(0x0000);
WriteComm(0xD40F);WriteData(0x00FC);
WriteComm(0xD410);WriteData(0x0001);
WriteComm(0xD411);WriteData(0x0023);
WriteComm(0xD412);WriteData(0x0001);
WriteComm(0xD413);WriteData(0x0061);
WriteComm(0xD414);WriteData(0x0001);
WriteComm(0xD415);WriteData(0x0094);
WriteComm(0xD416);WriteData(0x0001);
WriteComm(0xD417);WriteData(0x00E4);
WriteComm(0xD418);WriteData(0x0002);
WriteComm(0xD419);WriteData(0x0027);
WriteComm(0xD41A);WriteData(0x0002);
WriteComm(0xD41B);WriteData(0x0029);
WriteComm(0xD41C);WriteData(0x0002);
WriteComm(0xD41D);WriteData(0x0065);
WriteComm(0xD41E);WriteData(0x0002);
WriteComm(0xD41F);WriteData(0x00A6);
WriteComm(0xD420);WriteData(0x0002);
WriteComm(0xD421);WriteData(0x00CA);
WriteComm(0xD422);WriteData(0x0002);
WriteComm(0xD423);WriteData(0x00FD);
WriteComm(0xD424);WriteData(0x0003);
WriteComm(0xD425);WriteData(0x001D);
WriteComm(0xD426);WriteData(0x0003);
WriteComm(0xD427);WriteData(0x004D);
WriteComm(0xD428);WriteData(0x0003);
WriteComm(0xD429);WriteData(0x006A);
WriteComm(0xD42A);WriteData(0x0003);
WriteComm(0xD42B);WriteData(0x0095);
WriteComm(0xD42C);WriteData(0x0003);
WriteComm(0xD42D);WriteData(0x00AC);
WriteComm(0xD42E);WriteData(0x0003);
WriteComm(0xD42F);WriteData(0x00CB);
WriteComm(0xD430);WriteData(0x0003);
WriteComm(0xD431);WriteData(0x00EA);
WriteComm(0xD432);WriteData(0x0003);
WriteComm(0xD433);WriteData(0x00EF);
WriteComm(0xD500);WriteData(0x0000);
WriteComm(0xD501);WriteData(0x0001);
WriteComm(0xD502);WriteData(0x0000);
WriteComm(0xD503);WriteData(0x001C);
WriteComm(0xD504);WriteData(0x0000);
WriteComm(0xD505);WriteData(0x004E);
WriteComm(0xD506);WriteData(0x0000);
WriteComm(0xD507);WriteData(0x006A);
WriteComm(0xD508);WriteData(0x0000);
WriteComm(0xD509);WriteData(0x0085);
WriteComm(0xD50A);WriteData(0x0000);
WriteComm(0xD50B);WriteData(0x00AB);
WriteComm(0xD50C);WriteData(0x0000);
WriteComm(0xD50D);WriteData(0x00C4);
WriteComm(0xD50E);WriteData(0x0000);
WriteComm(0xD50F);WriteData(0x00FC);
WriteComm(0xD510);WriteData(0x0001);
WriteComm(0xD511);WriteData(0x0023);
WriteComm(0xD512);WriteData(0x0001);
WriteComm(0xD513);WriteData(0x0061);
WriteComm(0xD514);WriteData(0x0001);
WriteComm(0xD515);WriteData(0x0094);
WriteComm(0xD516);WriteData(0x0001);
WriteComm(0xD517);WriteData(0x00E4);
WriteComm(0xD518);WriteData(0x0002);
WriteComm(0xD519);WriteData(0x0027);
WriteComm(0xD51A);WriteData(0x0002);
WriteComm(0xD51B);WriteData(0x0029);
WriteComm(0xD51C);WriteData(0x0002);
WriteComm(0xD51D);WriteData(0x0065);
WriteComm(0xD51E);WriteData(0x0002);
WriteComm(0xD51F);WriteData(0x00A6);
WriteComm(0xD520);WriteData(0x0002);
WriteComm(0xD521);WriteData(0x00CA);
WriteComm(0xD522);WriteData(0x0002);
WriteComm(0xD523);WriteData(0x00FD);
WriteComm(0xD524);WriteData(0x0003);
WriteComm(0xD525);WriteData(0x001D);
WriteComm(0xD526);WriteData(0x0003);
WriteComm(0xD527);WriteData(0x004D);
WriteComm(0xD528);WriteData(0x0003);
WriteComm(0xD529);WriteData(0x006A);
WriteComm(0xD52A);WriteData(0x0003);
WriteComm(0xD52B);WriteData(0x0095);
WriteComm(0xD52C);WriteData(0x0003);
WriteComm(0xD52D);WriteData(0x00AC);
WriteComm(0xD52E);WriteData(0x0003);
WriteComm(0xD52F);WriteData(0x00CB);
WriteComm(0xD530);WriteData(0x0003);
WriteComm(0xD531);WriteData(0x00EA);
WriteComm(0xD532);WriteData(0x0003);
WriteComm(0xD533);WriteData(0x00EF);
WriteComm(0xD600);WriteData(0x0000);
WriteComm(0xD601);WriteData(0x0001);
WriteComm(0xD602);WriteData(0x0000);
WriteComm(0xD603);WriteData(0x001C);
WriteComm(0xD604);WriteData(0x0000);
WriteComm(0xD605);WriteData(0x004E);
WriteComm(0xD606);WriteData(0x0000);
WriteComm(0xD607);WriteData(0x006A);
WriteComm(0xD608);WriteData(0x0000);
WriteComm(0xD609);WriteData(0x0085);
WriteComm(0xD60A);WriteData(0x0000);
WriteComm(0xD60B);WriteData(0x00AB);
WriteComm(0xD60C);WriteData(0x0000);
WriteComm(0xD60D);WriteData(0x00C4);
WriteComm(0xD60E);WriteData(0x0000);
WriteComm(0xD60F);WriteData(0x00FC);
WriteComm(0xD610);WriteData(0x0001);
WriteComm(0xD611);WriteData(0x0023);
WriteComm(0xD612);WriteData(0x0001);
WriteComm(0xD613);WriteData(0x0061);
WriteComm(0xD614);WriteData(0x0001);
WriteComm(0xD615);WriteData(0x0094);
WriteComm(0xD616);WriteData(0x0001);
WriteComm(0xD617);WriteData(0x00E4);
WriteComm(0xD618);WriteData(0x0002);
WriteComm(0xD619);WriteData(0x0027);
WriteComm(0xD61A);WriteData(0x0002);
WriteComm(0xD61B);WriteData(0x0029);
WriteComm(0xD61C);WriteData(0x0002);
WriteComm(0xD61D);WriteData(0x0065);
WriteComm(0xD61E);WriteData(0x0002);
WriteComm(0xD61F);WriteData(0x00A6);
WriteComm(0xD620);WriteData(0x0002);
WriteComm(0xD621);WriteData(0x00CA);
WriteComm(0xD622);WriteData(0x0002);
WriteComm(0xD623);WriteData(0x00FD);
WriteComm(0xD624);WriteData(0x0003);
WriteComm(0xD625);WriteData(0x001D);
WriteComm(0xD626);WriteData(0x0003);
WriteComm(0xD627);WriteData(0x004D);
WriteComm(0xD628);WriteData(0x0003);
WriteComm(0xD629);WriteData(0x006A);
WriteComm(0xD62A);WriteData(0x0003);
WriteComm(0xD62B);WriteData(0x0095);
WriteComm(0xD62C);WriteData(0x0003);
WriteComm(0xD62D);WriteData(0x00AC);
WriteComm(0xD62E);WriteData(0x0003);
WriteComm(0xD62F);WriteData(0x00CB);
WriteComm(0xD630);WriteData(0x0003);
WriteComm(0xD631);WriteData(0x00EA);
WriteComm(0xD632);WriteData(0x0003);
WriteComm(0xD633);WriteData(0x00EF);
//Enable Page 0
WriteComm(0xF000);WriteData(0x0055);
WriteComm(0xF001);WriteData(0x00AA);
WriteComm(0xF002);WriteData(0x0052);
WriteComm(0xF003);WriteData(0x0008);
WriteComm(0xF004);WriteData(0x0000);
//Display control
WriteComm(0xB100);WriteData(0x00CC);// MCU I/F & mipi cmd mode?CC, RGB I/F & mipi video mode ?FC
WriteComm(0xB101);WriteData(0x0000);
WriteComm(0xB400);WriteData(0x0010);
//Source hold time
WriteComm(0xB600);WriteData(0x0005);
//Gate EQ control
WriteComm(0xB700);WriteData(0x0070);
WriteComm(0xB701);WriteData(0x0070);
//Source EQ control (Mode 2)
WriteComm(0xB800);WriteData(0x0001);
WriteComm(0xB801);WriteData(0x0005);
WriteComm(0xB802);WriteData(0x0005);
WriteComm(0xB803);WriteData(0x0005);
//Inversion mode (C)
WriteComm(0xBC00);WriteData(0x0002); //02:2DOT
WriteComm(0xBC01);WriteData(0x0000);
WriteComm(0xBC02);WriteData(0x0000);
//BOE's Setting (default)
WriteComm(0xCC00);WriteData(0x0003);
WriteComm(0xCC01);WriteData(0x0050);
WriteComm(0xCC02);WriteData(0x0050);
//Porch Adjust
WriteComm(0xBD00);WriteData(0x0001);
WriteComm(0xBD01);WriteData(0x0084);
WriteComm(0xBD02);WriteData(0x0007);
WriteComm(0xBD03);WriteData(0x0031);
WriteComm(0xBD04);WriteData(0x0000);
WriteComm(0xBE00);WriteData(0x0001);
WriteComm(0xBE01);WriteData(0x0084);
WriteComm(0xBE02);WriteData(0x0007);
WriteComm(0xBE03);WriteData(0x0031);
WriteComm(0xBE04);WriteData(0x0000);
WriteComm(0xBF00);WriteData(0x0001);
WriteComm(0xBF01);WriteData(0x0084);
WriteComm(0xBF02);WriteData(0x0007);
WriteComm(0xBF03);WriteData(0x0031);
WriteComm(0xBF04);WriteData(0x0000);
WriteComm(0x3500);WriteData(0x0000);
WriteComm(0x3600);WriteData(0x0000);
WriteComm(0x3A00);WriteData(0x0055); //0x77:24BIT
WriteComm(0x1100);
Delay(120);
WriteComm(0x2900);
Delay(120);
}
编写屏幕驱动
选择一个现成的 LCD 驱动，复制一份出来改写即可，这里选择 st7789v_cpu.c 驱动来修改。
先复制一份，把驱动全部重命名新屏幕 nt35510_cpu，包括内置的变量与命名
代码内 st7789v 相关字段也重命名新屏幕 nt35510
找到初始化序列的部分 static void lcd_panel_nt35510_init(u32 sel, struct disp_panel_para *info)
查阅屏幕手册可知，这个屏幕的命令写是16位，数据写是8位或16位。
由于使用的是 8bit MCU 接口，一次无法传 16 位的数据，所以需要实现函数拆分成两部分发送。在这里封装两个函数供使用：
static void sunxi_lcd_cpu_write_index_16b_8b(u32 sel, u32 i)
{
sunxi_lcd_cpu_write_index(sel, (i >> 8) & 0xFF);
sunxi_lcd_cpu_write_index(sel, i & 0xFF);
}
static void sunxi_lcd_cpu_write_data_8b(u32 sel, u32 i)
{
sunxi_lcd_cpu_write_data(sel, i & 0xFF);
}
把原来的初始化序列删除，然后将屏厂提供的初始化序列复制进来。
| 屏厂函数 | LCD框架接口 |
|---|---|
WriteComm | sunxi_lcd_cpu_write_index_16b_8b |
WriteData | sunxi_lcd_cpu_write_data_8b |
Delayms | sunxi_lcd_delay_ms |
配置屏幕驱动
编辑文件 bsp/drivers/video/sunxi/disp2/disp/lcd/Kconfig 新增新驱动的索引
config LCD_SUPPORT_NT35510
bool "LCD support NT35510 panel"
default n
help
if you want to support NT35510 panel for display driver, select it.
编辑文件 bsp/drivers/video/sunxi/disp2/disp/Makefile 增加驱动引用
disp-$(CONFIG_LCD_SUPPORT_NT35510) += lcd/nt35510_cpu.o
编辑 bsp/drivers/video/sunxi/disp2/disp/lcd/panels.c 把屏幕驱动加入数组中
#if IS_ENABLED(CONFIG_LCD_SUPPORT_NT35510)
&nt35510_cpu_panel,
#endif
编辑 bsp/drivers/video/sunxi/disp2/disp/lcd/panels.h 把屏幕加入引用
#if IS_ENABLED(CONFIG_LCD_SUPPORT_NT35510)
extern struct __lcd_panel nt35510_cpu_panel;
#endif
配置屏幕开启
针对 i8080 屏幕，还需要写入 21H，29H开显示之后，还需要开启 GRAM 写入，对应寄存器是 2CH，一般屏厂会在初始化中提供，但是也有屏厂初始化中不提供这个指令。
如果出现这样屏幕可以亮但是花屏，且送显示没有反应的情况（如下图）
可以尝试增加开启 GRAM 写入的指令到初始化序列最后一行：
sunxi_lcd_cpu_write_index_16b_8b(0, 0x2c00);
完整屏幕驱动
完整的屏幕驱动如下：
#include "nt35510_cpu.h"
#define CPU_TRI_MODE
#define DBG_INFO(format, args...) \
(printk("[NT35510 LCD INFO] LINE:%04d-->%s:" format, __LINE__, \
__func__, ##args))
#define DBG_ERR(format, args...) \
(printk("[NT35510 LCD ERR] LINE:%04d-->%s:" format, __LINE__, \
__func__, ##args))
#define panel_reset(val) sunxi_lcd_gpio_set_value(sel, 0, val)
#define lcd_cs(val) sunxi_lcd_gpio_set_value(sel, 1, val)
static void lcd_panel_nt35510_init(u32 sel, struct disp_panel_para *info);
static void LCD_power_on(u32 sel);
static void LCD_power_off(u32 sel);
static void LCD_bl_open(u32 sel);
static void LCD_bl_close(u32 sel);
static void LCD_panel_init(u32 sel);
static void LCD_panel_exit(u32 sel);
static void LCD_cfg_panel_info(struct panel_extend_para *info)
{
#if defined(__DISP_TEMP_CODE__)
u32 i = 0, j = 0;
u32 items;
u8 lcd_gamma_tbl[][2] = {
/* {input value, corrected value} */
{ 0, 0 }, { 15, 15 }, { 30, 30 }, { 45, 45 },
{ 60, 60 }, { 75, 75 }, { 90, 90 }, { 105, 105 },
{ 120, 120 }, { 135, 135 }, { 150, 150 }, { 165, 165 },
{ 180, 180 }, { 195, 195 }, { 210, 210 }, { 225, 225 },
{ 240, 240 }, { 255, 255 },
};
u32 lcd_cmap_tbl[2][3][4] = {
{
{ LCD_CMAP_G0, LCD_CMAP_B1, LCD_CMAP_G2, LCD_CMAP_B3 },
{ LCD_CMAP_B0, LCD_CMAP_R1, LCD_CMAP_B2, LCD_CMAP_R3 },
{ LCD_CMAP_R0, LCD_CMAP_G1, LCD_CMAP_R2, LCD_CMAP_G3 },
},
{
{ LCD_CMAP_B3, LCD_CMAP_G2, LCD_CMAP_B1, LCD_CMAP_G0 },
{ LCD_CMAP_R3, LCD_CMAP_B2, LCD_CMAP_R1, LCD_CMAP_B0 },
{ LCD_CMAP_G3, LCD_CMAP_R2, LCD_CMAP_G1, LCD_CMAP_R0 },
},
};
items = sizeof(lcd_gamma_tbl) / 2;
for (i = 0; i < items - 1; i++) {
u32 num = lcd_gamma_tbl[i + 1][0] - lcd_gamma_tbl[i][0];
for (j = 0; j < num; j++) {
u32 value = 0;
value = lcd_gamma_tbl[i][1] +
((lcd_gamma_tbl[i + 1][1] -
lcd_gamma_tbl[i][1]) *
j) / num;
info->lcd_gamma_tbl[lcd_gamma_tbl[i][0] + j] =
(value << 16) + (value << 8) + value;
}
}
info->lcd_gamma_tbl[255] = (lcd_gamma_tbl[items - 1][1] << 16) +
(lcd_gamma_tbl[items - 1][1] << 8) +
lcd_gamma_tbl[items - 1][1];
memcpy(info->lcd_cmap_tbl, lcd_cmap_tbl, sizeof(lcd_cmap_tbl));
#endif
}
static s32 LCD_open_flow(u32 sel)
{
LCD_OPEN_FUNC(sel, LCD_power_on, 120);
#ifdef CPU_TRI_MODE
LCD_OPEN_FUNC(sel, LCD_panel_init, 100);
LCD_OPEN_FUNC(sel, sunxi_lcd_tcon_enable, 50);
#else
LCD_OPEN_FUNC(sel, sunxi_lcd_tcon_enable, 100);
LCD_OPEN_FUNC(sel, LCD_panel_init, 50);
#endif
LCD_OPEN_FUNC(sel, LCD_bl_open, 0);
return 0;
}
static s32 LCD_close_flow(u32 sel)
{
LCD_CLOSE_FUNC(sel, LCD_bl_close, 20);
#ifdef CPU_TRI_MODE
LCD_CLOSE_FUNC(sel, sunxi_lcd_tcon_disable, 10);
LCD_CLOSE_FUNC(sel, LCD_panel_exit, 50);
#else
LCD_CLOSE_FUNC(sel, LCD_panel_exit, 10);
LCD_CLOSE_FUNC(sel, sunxi_lcd_tcon_disable, 10);
#endif
LCD_CLOSE_FUNC(sel, LCD_power_off, 0);
return 0;
}
static void LCD_power_on(u32 sel)
{
/* config lcd_power pin to open lcd power0 */
sunxi_lcd_power_enable(sel, 0);
sunxi_lcd_pin_cfg(sel, 1);
}
static void LCD_power_off(u32 sel)
{
/* lcd_cs, active low */
lcd_cs(1);
sunxi_lcd_delay_ms(10);
/* lcd_rst, active hight */
panel_reset(1);
sunxi_lcd_delay_ms(10);
sunxi_lcd_pin_cfg(sel, 0);
/* config lcd_power pin to close lcd power0 */
sunxi_lcd_power_disable(sel, 0);
}
static void LCD_bl_open(u32 sel)
{
sunxi_lcd_pwm_enable(sel);
/* config lcd_bl_en pin to open lcd backlight */
sunxi_lcd_backlight_enable(sel);
}
static void LCD_bl_close(u32 sel)
{
/* config lcd_bl_en pin to close lcd backlight */
sunxi_lcd_backlight_disable(sel);
sunxi_lcd_pwm_disable(sel);
}
/* static int bootup_flag = 0; */
static void LCD_panel_init(u32 sel)
{
struct disp_panel_para *info =
kmalloc(sizeof(struct disp_panel_para), GFP_KERNEL);
DBG_INFO("\n");
bsp_disp_get_panel_info(sel, info);
lcd_panel_nt35510_init(sel, info);
kfree(info);
return;
}
static void LCD_panel_exit(u32 sel)
{
}
static void sunxi_lcd_cpu_write_index_16b_8b(u32 sel, u32 i)
{
sunxi_lcd_cpu_write_index(sel, (i >> 8) & 0xFF);
sunxi_lcd_cpu_write_index(sel, i & 0xFF);
}
static void sunxi_lcd_cpu_write_data_8b(u32 sel, u32 i)
{
sunxi_lcd_cpu_write_data(sel, i & 0xFF);
}
static void lcd_panel_nt35510_init(u32 sel, struct disp_panel_para *info)
{
DBG_INFO("\n");
/* lcd_cs, active low */
lcd_cs(0);
sunxi_lcd_delay_ms(5);
panel_reset(1);
sunxi_lcd_delay_ms(20);
panel_reset(0);
sunxi_lcd_delay_ms(20);
panel_reset(1);
sunxi_lcd_delay_ms(120);
/* NT35510SH_BOE3.97IPS_24BIT_20141224 */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF00);
sunxi_lcd_cpu_write_data_8b(0, 0x00AA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF01);
sunxi_lcd_cpu_write_data_8b(0, 0x0055);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF02);
sunxi_lcd_cpu_write_data_8b(0, 0x00A5);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF03);
sunxi_lcd_cpu_write_data_8b(0, 0x0080);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF200);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF201);
sunxi_lcd_cpu_write_data_8b(0, 0x0084);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF202);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0x6F00);
sunxi_lcd_cpu_write_data_8b(0, 0x000A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF400);
sunxi_lcd_cpu_write_data_8b(0, 0x0013);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF00);
sunxi_lcd_cpu_write_data_8b(0, 0x00AA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF01);
sunxi_lcd_cpu_write_data_8b(0, 0x0055);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF02);
sunxi_lcd_cpu_write_data_8b(0, 0x00A5);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xFF03);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
/* Enable Page 1 */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF000);
sunxi_lcd_cpu_write_data_8b(0, 0x0055);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF001);
sunxi_lcd_cpu_write_data_8b(0, 0x00AA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF002);
sunxi_lcd_cpu_write_data_8b(0, 0x0052);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF003);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF004);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
/* AVDD Set AVDD 5.2V */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB000);
sunxi_lcd_cpu_write_data_8b(0, 0x000C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB001);
sunxi_lcd_cpu_write_data_8b(0, 0x000C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB002);
sunxi_lcd_cpu_write_data_8b(0, 0x000C);
/* AVDD ratio */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB600);
sunxi_lcd_cpu_write_data_8b(0, 0x0046);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB601);
sunxi_lcd_cpu_write_data_8b(0, 0x0046);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB602);
sunxi_lcd_cpu_write_data_8b(0, 0x0046);
/* AVEE -5.2V */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB100);
sunxi_lcd_cpu_write_data_8b(0, 0x000C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB101);
sunxi_lcd_cpu_write_data_8b(0, 0x000C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB102);
sunxi_lcd_cpu_write_data_8b(0, 0x000C);
/* AVEE ratio */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB700);
sunxi_lcd_cpu_write_data_8b(0, 0x0026);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB701);
sunxi_lcd_cpu_write_data_8b(0, 0x0026);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB702);
sunxi_lcd_cpu_write_data_8b(0, 0x0026);
/* VCL -2.5V */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB200);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB201);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB202);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
/* VCL ratio */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB800);
sunxi_lcd_cpu_write_data_8b(0, 0x0034);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB801);
sunxi_lcd_cpu_write_data_8b(0, 0x0034);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB802);
sunxi_lcd_cpu_write_data_8b(0, 0x0034);
/* VGH 15V (Free pump) */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBF00);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB300);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB301);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB302);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
/* VGH ratio */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB900);
sunxi_lcd_cpu_write_data_8b(0, 0x0026);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB901);
sunxi_lcd_cpu_write_data_8b(0, 0x0026);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB902);
sunxi_lcd_cpu_write_data_8b(0, 0x0026);
/* VGL_REG -10V */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB500);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB501);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB502);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
/* sunxi_lcd_cpu_write_index_16b_8b(0, 0xC200);sunxi_lcd_cpu_write_data_8b(0, 0x0003); */
/* VGLX ratio */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBA00);
sunxi_lcd_cpu_write_data_8b(0, 0x0036);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBA01);
sunxi_lcd_cpu_write_data_8b(0, 0x0036);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBA02);
sunxi_lcd_cpu_write_data_8b(0, 0x0036);
/* VGMP/VGSP 4.5V/0V */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBC00);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBC01);
sunxi_lcd_cpu_write_data_8b(0, 0x0080);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBC02);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
/* VGMN/VGSN -4.5V/0V */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD00);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD01);
sunxi_lcd_cpu_write_data_8b(0, 0x0080);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD02);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
/* VCOM */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE00);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE01);
sunxi_lcd_cpu_write_data_8b(0, 0x0055); /* 6A */
/* Gamma Setting */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD100);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD101);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD102);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD103);
sunxi_lcd_cpu_write_data_8b(0, 0x001C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD104);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD105);
sunxi_lcd_cpu_write_data_8b(0, 0x004E);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD106);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD107);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD108);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD109);
sunxi_lcd_cpu_write_data_8b(0, 0x0085);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD10A);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD10B);
sunxi_lcd_cpu_write_data_8b(0, 0x00AB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD10C);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD10D);
sunxi_lcd_cpu_write_data_8b(0, 0x00C4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD10E);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD10F);
sunxi_lcd_cpu_write_data_8b(0, 0x00FC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD110);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD111);
sunxi_lcd_cpu_write_data_8b(0, 0x0023);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD112);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD113);
sunxi_lcd_cpu_write_data_8b(0, 0x0061);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD114);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD115);
sunxi_lcd_cpu_write_data_8b(0, 0x0094);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD116);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD117);
sunxi_lcd_cpu_write_data_8b(0, 0x00E4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD118);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD119);
sunxi_lcd_cpu_write_data_8b(0, 0x0027);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD11A);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD11B);
sunxi_lcd_cpu_write_data_8b(0, 0x0029);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD11C);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD11D);
sunxi_lcd_cpu_write_data_8b(0, 0x0065);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD11E);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD11F);
sunxi_lcd_cpu_write_data_8b(0, 0x00A6);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD120);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD121);
sunxi_lcd_cpu_write_data_8b(0, 0x00CA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD122);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD123);
sunxi_lcd_cpu_write_data_8b(0, 0x00FD);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD124);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD125);
sunxi_lcd_cpu_write_data_8b(0, 0x001D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD126);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD127);
sunxi_lcd_cpu_write_data_8b(0, 0x004D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD128);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD129);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD12A);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD12B);
sunxi_lcd_cpu_write_data_8b(0, 0x0095);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD12C);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD12D);
sunxi_lcd_cpu_write_data_8b(0, 0x00AC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD12E);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD12F);
sunxi_lcd_cpu_write_data_8b(0, 0x00CB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD130);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD131);
sunxi_lcd_cpu_write_data_8b(0, 0x00EA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD132);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD133);
sunxi_lcd_cpu_write_data_8b(0, 0x00EF);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD200);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD201);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD202);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD203);
sunxi_lcd_cpu_write_data_8b(0, 0x001C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD204);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD205);
sunxi_lcd_cpu_write_data_8b(0, 0x004E);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD206);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD207);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD208);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD209);
sunxi_lcd_cpu_write_data_8b(0, 0x0085);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD20A);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD20B);
sunxi_lcd_cpu_write_data_8b(0, 0x00AB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD20C);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD20D);
sunxi_lcd_cpu_write_data_8b(0, 0x00C4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD20E);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD20F);
sunxi_lcd_cpu_write_data_8b(0, 0x00FC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD210);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD211);
sunxi_lcd_cpu_write_data_8b(0, 0x0023);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD212);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD213);
sunxi_lcd_cpu_write_data_8b(0, 0x0061);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD214);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD215);
sunxi_lcd_cpu_write_data_8b(0, 0x0094);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD216);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD217);
sunxi_lcd_cpu_write_data_8b(0, 0x00E4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD218);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD219);
sunxi_lcd_cpu_write_data_8b(0, 0x0027);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD21A);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD21B);
sunxi_lcd_cpu_write_data_8b(0, 0x0029);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD21C);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD21D);
sunxi_lcd_cpu_write_data_8b(0, 0x0065);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD21E);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD21F);
sunxi_lcd_cpu_write_data_8b(0, 0x00A6);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD220);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD221);
sunxi_lcd_cpu_write_data_8b(0, 0x00CA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD222);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD223);
sunxi_lcd_cpu_write_data_8b(0, 0x00FD);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD224);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD225);
sunxi_lcd_cpu_write_data_8b(0, 0x001D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD226);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD227);
sunxi_lcd_cpu_write_data_8b(0, 0x004D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD228);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD229);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD22A);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD22B);
sunxi_lcd_cpu_write_data_8b(0, 0x0095);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD22C);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD22D);
sunxi_lcd_cpu_write_data_8b(0, 0x00AC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD22E);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD22F);
sunxi_lcd_cpu_write_data_8b(0, 0x00CB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD230);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD231);
sunxi_lcd_cpu_write_data_8b(0, 0x00EA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD232);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD233);
sunxi_lcd_cpu_write_data_8b(0, 0x00EF);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD300);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD301);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD302);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD303);
sunxi_lcd_cpu_write_data_8b(0, 0x001C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD304);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD305);
sunxi_lcd_cpu_write_data_8b(0, 0x004E);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD306);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD307);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD308);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD309);
sunxi_lcd_cpu_write_data_8b(0, 0x0085);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD30A);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD30B);
sunxi_lcd_cpu_write_data_8b(0, 0x00AB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD30C);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD30D);
sunxi_lcd_cpu_write_data_8b(0, 0x00C4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD30E);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD30F);
sunxi_lcd_cpu_write_data_8b(0, 0x00FC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD310);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD311);
sunxi_lcd_cpu_write_data_8b(0, 0x0023);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD312);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD313);
sunxi_lcd_cpu_write_data_8b(0, 0x0061);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD314);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD315);
sunxi_lcd_cpu_write_data_8b(0, 0x0094);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD316);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD317);
sunxi_lcd_cpu_write_data_8b(0, 0x00E4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD318);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD319);
sunxi_lcd_cpu_write_data_8b(0, 0x0027);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD31A);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD31B);
sunxi_lcd_cpu_write_data_8b(0, 0x0029);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD31C);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD31D);
sunxi_lcd_cpu_write_data_8b(0, 0x0065);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD31E);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD31F);
sunxi_lcd_cpu_write_data_8b(0, 0x00A6);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD320);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD321);
sunxi_lcd_cpu_write_data_8b(0, 0x00CA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD322);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD323);
sunxi_lcd_cpu_write_data_8b(0, 0x00FD);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD324);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD325);
sunxi_lcd_cpu_write_data_8b(0, 0x001D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD326);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD327);
sunxi_lcd_cpu_write_data_8b(0, 0x004D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD328);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD329);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD32A);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD32B);
sunxi_lcd_cpu_write_data_8b(0, 0x0095);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD32C);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD32D);
sunxi_lcd_cpu_write_data_8b(0, 0x00AC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD32E);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD32F);
sunxi_lcd_cpu_write_data_8b(0, 0x00CB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD330);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD331);
sunxi_lcd_cpu_write_data_8b(0, 0x00EA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD332);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD333);
sunxi_lcd_cpu_write_data_8b(0, 0x00EF);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD400);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD401);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD402);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD403);
sunxi_lcd_cpu_write_data_8b(0, 0x001C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD404);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD405);
sunxi_lcd_cpu_write_data_8b(0, 0x004E);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD406);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD407);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD408);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD409);
sunxi_lcd_cpu_write_data_8b(0, 0x0085);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD40A);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD40B);
sunxi_lcd_cpu_write_data_8b(0, 0x00AB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD40C);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD40D);
sunxi_lcd_cpu_write_data_8b(0, 0x00C4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD40E);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD40F);
sunxi_lcd_cpu_write_data_8b(0, 0x00FC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD410);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD411);
sunxi_lcd_cpu_write_data_8b(0, 0x0023);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD412);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD413);
sunxi_lcd_cpu_write_data_8b(0, 0x0061);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD414);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD415);
sunxi_lcd_cpu_write_data_8b(0, 0x0094);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD416);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD417);
sunxi_lcd_cpu_write_data_8b(0, 0x00E4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD418);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD419);
sunxi_lcd_cpu_write_data_8b(0, 0x0027);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD41A);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD41B);
sunxi_lcd_cpu_write_data_8b(0, 0x0029);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD41C);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD41D);
sunxi_lcd_cpu_write_data_8b(0, 0x0065);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD41E);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD41F);
sunxi_lcd_cpu_write_data_8b(0, 0x00A6);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD420);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD421);
sunxi_lcd_cpu_write_data_8b(0, 0x00CA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD422);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD423);
sunxi_lcd_cpu_write_data_8b(0, 0x00FD);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD424);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD425);
sunxi_lcd_cpu_write_data_8b(0, 0x001D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD426);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD427);
sunxi_lcd_cpu_write_data_8b(0, 0x004D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD428);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD429);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD42A);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD42B);
sunxi_lcd_cpu_write_data_8b(0, 0x0095);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD42C);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD42D);
sunxi_lcd_cpu_write_data_8b(0, 0x00AC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD42E);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD42F);
sunxi_lcd_cpu_write_data_8b(0, 0x00CB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD430);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD431);
sunxi_lcd_cpu_write_data_8b(0, 0x00EA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD432);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD433);
sunxi_lcd_cpu_write_data_8b(0, 0x00EF);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD500);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD501);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD502);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD503);
sunxi_lcd_cpu_write_data_8b(0, 0x001C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD504);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD505);
sunxi_lcd_cpu_write_data_8b(0, 0x004E);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD506);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD507);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD508);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD509);
sunxi_lcd_cpu_write_data_8b(0, 0x0085);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD50A);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD50B);
sunxi_lcd_cpu_write_data_8b(0, 0x00AB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD50C);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD50D);
sunxi_lcd_cpu_write_data_8b(0, 0x00C4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD50E);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD50F);
sunxi_lcd_cpu_write_data_8b(0, 0x00FC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD510);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD511);
sunxi_lcd_cpu_write_data_8b(0, 0x0023);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD512);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD513);
sunxi_lcd_cpu_write_data_8b(0, 0x0061);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD514);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD515);
sunxi_lcd_cpu_write_data_8b(0, 0x0094);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD516);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD517);
sunxi_lcd_cpu_write_data_8b(0, 0x00E4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD518);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD519);
sunxi_lcd_cpu_write_data_8b(0, 0x0027);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD51A);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD51B);
sunxi_lcd_cpu_write_data_8b(0, 0x0029);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD51C);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD51D);
sunxi_lcd_cpu_write_data_8b(0, 0x0065);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD51E);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD51F);
sunxi_lcd_cpu_write_data_8b(0, 0x00A6);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD520);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD521);
sunxi_lcd_cpu_write_data_8b(0, 0x00CA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD522);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD523);
sunxi_lcd_cpu_write_data_8b(0, 0x00FD);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD524);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD525);
sunxi_lcd_cpu_write_data_8b(0, 0x001D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD526);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD527);
sunxi_lcd_cpu_write_data_8b(0, 0x004D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD528);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD529);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD52A);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD52B);
sunxi_lcd_cpu_write_data_8b(0, 0x0095);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD52C);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD52D);
sunxi_lcd_cpu_write_data_8b(0, 0x00AC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD52E);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD52F);
sunxi_lcd_cpu_write_data_8b(0, 0x00CB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD530);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD531);
sunxi_lcd_cpu_write_data_8b(0, 0x00EA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD532);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD533);
sunxi_lcd_cpu_write_data_8b(0, 0x00EF);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD600);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD601);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD602);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD603);
sunxi_lcd_cpu_write_data_8b(0, 0x001C);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD604);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD605);
sunxi_lcd_cpu_write_data_8b(0, 0x004E);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD606);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD607);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD608);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD609);
sunxi_lcd_cpu_write_data_8b(0, 0x0085);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD60A);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD60B);
sunxi_lcd_cpu_write_data_8b(0, 0x00AB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD60C);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD60D);
sunxi_lcd_cpu_write_data_8b(0, 0x00C4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD60E);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD60F);
sunxi_lcd_cpu_write_data_8b(0, 0x00FC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD610);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD611);
sunxi_lcd_cpu_write_data_8b(0, 0x0023);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD612);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD613);
sunxi_lcd_cpu_write_data_8b(0, 0x0061);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD614);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD615);
sunxi_lcd_cpu_write_data_8b(0, 0x0094);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD616);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD617);
sunxi_lcd_cpu_write_data_8b(0, 0x00E4);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD618);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD619);
sunxi_lcd_cpu_write_data_8b(0, 0x0027);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD61A);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD61B);
sunxi_lcd_cpu_write_data_8b(0, 0x0029);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD61C);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD61D);
sunxi_lcd_cpu_write_data_8b(0, 0x0065);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD61E);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD61F);
sunxi_lcd_cpu_write_data_8b(0, 0x00A6);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD620);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD621);
sunxi_lcd_cpu_write_data_8b(0, 0x00CA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD622);
sunxi_lcd_cpu_write_data_8b(0, 0x0002);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD623);
sunxi_lcd_cpu_write_data_8b(0, 0x00FD);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD624);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD625);
sunxi_lcd_cpu_write_data_8b(0, 0x001D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD626);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD627);
sunxi_lcd_cpu_write_data_8b(0, 0x004D);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD628);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD629);
sunxi_lcd_cpu_write_data_8b(0, 0x006A);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD62A);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD62B);
sunxi_lcd_cpu_write_data_8b(0, 0x0095);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD62C);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD62D);
sunxi_lcd_cpu_write_data_8b(0, 0x00AC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD62E);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD62F);
sunxi_lcd_cpu_write_data_8b(0, 0x00CB);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD630);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD631);
sunxi_lcd_cpu_write_data_8b(0, 0x00EA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD632);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xD633);
sunxi_lcd_cpu_write_data_8b(0, 0x00EF);
/* Enable Page 0 */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF000);
sunxi_lcd_cpu_write_data_8b(0, 0x0055);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF001);
sunxi_lcd_cpu_write_data_8b(0, 0x00AA);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF002);
sunxi_lcd_cpu_write_data_8b(0, 0x0052);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF003);
sunxi_lcd_cpu_write_data_8b(0, 0x0008);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xF004);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
/* Display control */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB100);
/* MCU I/F & mipi cmd mode?CC, RGB I/F & mipi video mode ?FC */
sunxi_lcd_cpu_write_data_8b(0, 0x00CC);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB101);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB400);
sunxi_lcd_cpu_write_data_8b(0, 0x0010);
/* Source hold time */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB600);
sunxi_lcd_cpu_write_data_8b(0, 0x0005);
/* Gate EQ control */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB700);
sunxi_lcd_cpu_write_data_8b(0, 0x0070);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB701);
sunxi_lcd_cpu_write_data_8b(0, 0x0070);
/* Source EQ control (Mode 2) */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB800);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB801);
sunxi_lcd_cpu_write_data_8b(0, 0x0005);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB802);
sunxi_lcd_cpu_write_data_8b(0, 0x0005);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xB803);
sunxi_lcd_cpu_write_data_8b(0, 0x0005);
/* Inversion mode (C) */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBC00);
sunxi_lcd_cpu_write_data_8b(0, 0x0002); /* 02:2DOT */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBC01);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBC02);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
/* BOE's Setting (default) */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xCC00);
sunxi_lcd_cpu_write_data_8b(0, 0x0003);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xCC01);
sunxi_lcd_cpu_write_data_8b(0, 0x0050);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xCC02);
sunxi_lcd_cpu_write_data_8b(0, 0x0050);
/* Porch Adjust */
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD00);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD01);
sunxi_lcd_cpu_write_data_8b(0, 0x0084);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD02);
sunxi_lcd_cpu_write_data_8b(0, 0x0007);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD03);
sunxi_lcd_cpu_write_data_8b(0, 0x0031);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBD04);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE00);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE01);
sunxi_lcd_cpu_write_data_8b(0, 0x0084);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE02);
sunxi_lcd_cpu_write_data_8b(0, 0x0007);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE03);
sunxi_lcd_cpu_write_data_8b(0, 0x0031);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBE04);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBF00);
sunxi_lcd_cpu_write_data_8b(0, 0x0001);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBF01);
sunxi_lcd_cpu_write_data_8b(0, 0x0084);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBF02);
sunxi_lcd_cpu_write_data_8b(0, 0x0007);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBF03);
sunxi_lcd_cpu_write_data_8b(0, 0x0031);
sunxi_lcd_cpu_write_index_16b_8b(0, 0xBF04);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
#if defined(CPU_TRI_MODE)
sunxi_lcd_cpu_write_index_16b_8b(0, 0x3500);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
#endif
sunxi_lcd_cpu_write_index_16b_8b(0, 0x3600);
sunxi_lcd_cpu_write_data_8b(0, 0x0000);
sunxi_lcd_cpu_write_index_16b_8b(0, 0x3A00);
sunxi_lcd_cpu_write_data_8b(0, 0x0066); /* 0x77:24BIT */
sunxi_lcd_cpu_write_index_16b_8b(0, 0x1100);
sunxi_lcd_delay_ms(120);
sunxi_lcd_cpu_write_index_16b_8b(0, 0x2900);
sunxi_lcd_delay_ms(120);
sunxi_lcd_cpu_write_index_16b_8b(0, 0x2c00);
}
/* panel driver name, must mach the name of lcd_drv_name in sys_config.fex */
struct __lcd_panel nt35510_cpu_panel = {
.name = "nt35510_cpu",
.func = {
.cfg_panel_info = LCD_cfg_panel_info,
.cfg_open_flow = LCD_open_flow,
.cfg_close_flow = LCD_close_flow,
},
};
配置屏幕驱动
进入内核，勾选对应驱动。
编辑设备树，配置屏幕时序与引脚
&disp {
disp_init_enable = <1>;
disp_mode = <0>;
screen0_output_type = <1>;
screen0_output_mode = <4>;
screen0_to_lcd_index = <0>;
screen1_output_type = <3>;
screen1_output_mode = <10>;
screen1_to_lcd_index = <2>;
screen1_output_format = <0>;
screen1_output_bits = <0>;
screen1_output_eotf = <4>;
screen1_output_cs = <257>;
screen1_output_dvi_hdmi = <2>;
screen1_output_range = <2>;
screen1_output_scan = <0>;
screen1_output_aspect_ratio = <8>;
fb_format = <0>;
fb_num = <1>;
fb_debug = <0>;
/*<disp channel layer zorder>*/
fb0_map = <0 0 0 16>;
fb0_width = <480>;
fb0_height = <800>;
/*<disp channel layer zorder>*/
fb1_map = <0 2 0 16>;
fb1_width = <300>;
fb1_height = <300>;
/*<disp channel layer zorder>*/
fb2_map = <1 0 0 16>;
fb2_width = <1280>;
fb2_height = <720>;
/*<disp channel layer zorder>*/
fb3_map = <1 1 0 16>;
fb3_width = <300>;
fb3_height = <300>;
chn_cfg_mode = <1>;
disp_para_zone = <1>;
};
&lcd0 {
lcd_used = <1>;
lcd_driver_name = "nt35510_cpu";
lcd_if = <1>;
lcd_x = <480>;
lcd_y = <800>;
lcd_width = <43>;
lcd_height = <63>;
lcd_dclk_freq = <58>;
lcd_hbp = <35>;
lcd_ht = <650>;
lcd_hspw = <10>;
lcd_vbp = <55>;
lcd_vt = <1240>;
lcd_vspw = <20>;
lcd_backlight = <50>;
lcd_pwm_used = <0>;
lcd_pwm_ch = <4>;
lcd_pwm_freq = <50000>;
lcd_pwm_pol = <1>;
lcd_pwm_max_limit = <255>;
lcd_bright_curve_en = <1>;
lcd_frm = <2>;
lcd_gamma_en = <0>;
lcd_bright_curve_en = <0>;
lcd_cmap_en = <0>;
lcdgamma4iep = <22>;
lcd_cpu_mode = <1>;
lcd_cpu_te = <2>;
lcd_cpu_if = <12>;
/* rst */
lcd_gpio_0 = <&pio PD 19 GPIO_ACTIVE_LOW>;
/* cs */
lcd_gpio_1 = <&pio PD 14 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&rgb8_pins_a>, <&rgb8_pins_ctl_a>;
pinctrl-1 = <&rgb8_pins_b>, <&rgb8_pins_ctl_b>;
};
测试屏幕
使用命令查看 TCON 彩条，这个彩条是由 TCON 发出的，操作更加底层。
echo 1 > /sys/class/disp/disp/attr/colorbar
使用命令查看 DE 彩条，这个彩条是由 DE 合成发出的，如果 DE 出问题则可以看到 TCON 彩条看不到 DE 彩条。
提示
如果刚才开了 TCON 彩条，记得先关一下，TCON 彩条优先级更高
echo 0 > /sys/class/disp/disp/attr/colorbar
echo 8 > /sys/class/disp/disp/attr/colorbar
FAQ
I8080接口显示抖动有花纹
- 改大时钟管脚的管脚驱动能力，改大。
黑屏无显示
黑屏，没有屏幕信号输出
注意芯片型号！
首先确认芯片型号是否为 V821L2-WXX，其他型号不支持 I8080 显示。
完全黑屏，背光也没有
- 屏驱动添加失败。驱动没有加载屏驱动，导致背光电源相关函数没有运行到。
- 屏驱动加载成功，但是没有执行到开背光函数（可以在uboot的屏驱动中加打印确认开屏流程的执行情况）。这时候大概率是屏驱动的开屏函数没有执行完，uboot就执行完毕进入内核了。需要在满足屏手册上电时序要求的情况下，尽量减少延迟。
- PWM 配置和背光电路的问题，另外就是直接测量下硬件测量下相关管脚和电压，再检查屏是否初始化成功。
黑屏但是有背光
- 没送图层。如果应用没有送任何图层那么表现的现象就是黑屏。
- SoC端的显示接口模块没有供电。SoC端模块没有供电自然无法传输视频信号到屏上。
- 复位脚没有复位。如果有复位脚，请确保硬件连接正确，确保复位脚的复位操作有放到屏驱动中。
board.dts中lcd0有严重错误。第一个是lcd的timing搞错了，请严格按照屏手册中的提示来写。第二个就是，接口类型搞错。- 屏的初始化命令不对。包括各个步骤先后顺序，延时等，这个时候请找屏厂确认初始化命令。