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楼主 # 2021-08-11 15:55:28

bzz
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注册时间： 2021-07-08
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[求助]V3S点屏 （三线SPI&RGB）

屏幕手册
123.png
456.png

各位大神指点一下，这块屏幕要如何驱动呀？

看到内核（zero-5.2.y）里面有这个驱动drivers/gpu/drm/panel/panel-sitronix-st7701.c，好像时mipi的

屏幕厂家给的初始化序列，具体要怎么办呀

				//PAGE1
				  SPI_WriteComm(0xFF);    
				  SPI_WriteData(0x77);
				  SPI_WriteData(0x01);
				  SPI_WriteData(0x00);
			      SPI_WriteData(0x00);
			      SPI_WriteData(0x10);



                   SPI_WriteComm(0xC0);    
                   SPI_WriteData(0x3B);
				   SPI_WriteData(0x00);

				   SPI_WriteComm(0xC1);    
				   SPI_WriteData(0x0D);
				   SPI_WriteData(0x02);
		
		    	  SPI_WriteComm(0xC2);    
		    	  SPI_WriteData(0x31);
				  SPI_WriteData(0x05);

				  SPI_WriteComm(0xCd);
SPI_WriteData(0x08);

                  SPI_WriteComm(0xB0);    
                  SPI_WriteData(0x00); //Positive Voltage Gamma Control
				  SPI_WriteData(0x11);
				  SPI_WriteData(0x18);
				  SPI_WriteData(0x0E);
		           SPI_WriteData(0x11);
				  SPI_WriteData(0x06);
		          SPI_WriteData(0x07);
				  SPI_WriteData(0x08);
				  SPI_WriteData(0x07);
				  SPI_WriteData(0x22);
			      SPI_WriteData(0x04);
				  SPI_WriteData(0x12);
				  SPI_WriteData(0x0F);
			      SPI_WriteData(0xAA);
				  SPI_WriteData(0x31);
				  SPI_WriteData(0x18);

                
				SPI_WriteComm(0xB1);    
				SPI_WriteData(0x00); //Negative Voltage Gamma Control
				SPI_WriteData(0x11);
				SPI_WriteData(0x19);
			    SPI_WriteData(0x0E);
			    SPI_WriteData(0x12);
				SPI_WriteData(0x07);
				SPI_WriteData(0x08);
				SPI_WriteData(0x08);
				SPI_WriteData(0x08);
				SPI_WriteData(0x22);
				SPI_WriteData(0x04);
				SPI_WriteData(0x11);
				SPI_WriteData(0x11);
				SPI_WriteData(0xA9);
				SPI_WriteData(0x32);
				SPI_WriteData(0x18);

		//PAGE1
				SPI_WriteComm(0xFF);    
				SPI_WriteData(0x77);
				SPI_WriteData(0x01);
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
				SPI_WriteData(0x11);


              	SPI_WriteComm(0xB0);    SPI_WriteData(0x60); //Vop=4.7375v

                SPI_WriteComm(0xB1);    SPI_WriteData(0x32); //VCOM=32

                SPI_WriteComm(0xB2);    SPI_WriteData(0x07); //VGH=15v

                SPI_WriteComm(0xB3);    SPI_WriteData(0x80);

                SPI_WriteComm(0xB5);    SPI_WriteData(0x49); //VGL=-10.17v

                SPI_WriteComm(0xB7);    SPI_WriteData(0x85);

              	SPI_WriteComm(0xB8);    SPI_WriteData(0x21); //AVDD=6.6 & AVCL=-4.6

                SPI_WriteComm(0xC1);    SPI_WriteData(0x78);

                SPI_WriteComm(0xC2);    SPI_WriteData(0x78);

                SPI_WriteComm(0xE0);    
                SPI_WriteData(0x00);
                SPI_WriteData(0x1B);
                SPI_WriteData(0x02);

				SPI_WriteComm(0xE1);   
				SPI_WriteData(0x08);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
				SPI_WriteData(0x07);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
				SPI_WriteData(0x44);
				SPI_WriteData(0x44);
			


				SPI_WriteComm(0xE2);    
				SPI_WriteData(0x11);
				SPI_WriteData(0x11);
				SPI_WriteData(0x44);
				SPI_WriteData(0x44);
				SPI_WriteData(0xED);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
				SPI_WriteData(0xEC);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
			

				SPI_WriteComm(0xE3);    
				SPI_WriteData(0x00);
				SPI_WriteData(0x00);
				SPI_WriteData(0x11);
				SPI_WriteData(0x11);

				
				SPI_WriteComm(0xE4);    
				SPI_WriteData(0x44);
				SPI_WriteData(0x44);

				SPI_WriteComm(0xE5);    
				SPI_WriteData(0x0A);
				SPI_WriteData(0xE9);
				SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x0C);
				SPI_WriteData(0xEB);
				SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x0E);
				SPI_WriteData(0xED);
				SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);
                SPI_WriteData(0x10);
				SPI_WriteData(0xEF);
				SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);



				
				 SPI_WriteComm(0xE6);   
				 SPI_WriteData(0x00);
				 SPI_WriteData(0x00);
				 SPI_WriteData(0x11);
				 SPI_WriteData(0x11);

		    	SPI_WriteComm(0xE7);    
		    	SPI_WriteData(0x44);
				SPI_WriteData(0x44);

				
				SPI_WriteComm(0xE8);    
				SPI_WriteData(0x09);
				SPI_WriteData(0xE8);
			    SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);
			    SPI_WriteData(0x0B);
				SPI_WriteData(0xEA);
				SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x0D);
				SPI_WriteData(0xEC);
				SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);
				SPI_WriteData(0x0F);
				SPI_WriteData(0xEE);
			    SPI_WriteData(0xD8);
				SPI_WriteData(0xA0);


				SPI_WriteComm(0xEB);    
				SPI_WriteData(0x02);
				SPI_WriteData(0x00);
				SPI_WriteData(0xE4);
				SPI_WriteData(0xE4);
				SPI_WriteData(0x88);
				SPI_WriteData(0x00);
				SPI_WriteData(0x40);


            	SPI_WriteComm(0xEC);    
            	SPI_WriteData(0x3C);
			    SPI_WriteData(0x00);


				SPI_WriteComm(0xED);    
				SPI_WriteData(0xAB);
		     	SPI_WriteData(0x89);
				SPI_WriteData(0x76);
				SPI_WriteData(0x54);
				SPI_WriteData(0x02);
				SPI_WriteData(0xFF);
				SPI_WriteData(0xFF);
				SPI_WriteData(0xFF);
				SPI_WriteData(0xFF);
				SPI_WriteData(0xFF);
				SPI_WriteData(0xFF);
				 SPI_WriteData(0x20);
				SPI_WriteData(0x45);
				SPI_WriteData(0x67);
				SPI_WriteData(0x98);
				SPI_WriteData(0xBA);

				SPI_WriteComm(0x36);    
				SPI_WriteData(0x00);
				

                //-----------VAP & VAN---------------
                SPI_WriteComm(0xFF);    
                SPI_WriteData(0x77);
				        SPI_WriteData(0x01);
				        SPI_WriteData(0x00);
				        SPI_WriteData(0x00);
				        SPI_WriteData(0x13);
                
	              SPI_WriteComm(0xE5);    
	              SPI_WriteData(0xE4);

SPI_WriteComm(0xFF);
SPI_WriteData(0x77);
SPI_WriteData(0x01);
SPI_WriteData(0x00);
SPI_WriteData(0x00);
SPI_WriteData(0x00);

 SPI_WriteComm(0x3a);
SPI_WriteData(0x66);
SPI_WriteComm(0x21);
Delay(1);
SPI_WriteComm(0x11);
Delay(120);
SPI_WriteComm(0x29);

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#1 2021-08-11 16:33:30

哇酷小二
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Re: [求助]V3S点屏 （三线SPI&RGB）

你改成RGB初始化就可以了





taobao： V3s/F1C100s/F1C200s/D1-H/D1s/T113-S3/XR32/XR829/A523/A133/H133/V831/V851s/V853

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楼主 #2 2021-08-12 09:29:22

bzz
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注册时间： 2021-07-08
已发帖子： 3
积分： 1.5

Re: [求助]V3S点屏 （三线SPI&RGB）

哇酷小二 说：

你改成RGB初始化就可以了

有点没明白要在哪里改，需要改驱动文件吗

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#3 2021-08-17 10:39:49

SpiderZMan
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注册时间： 2019-03-26
已发帖子： 2
积分： 1.5

Re: [求助]V3S点屏 （三线SPI&RGB）

可以用GPIO模拟SPI来点屏

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#4 2021-08-17 10:44:38

aozima
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所在地： 深圳
注册时间： 2019-05-25
已发帖子： 462
积分： 329.5
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Re: [求助]V3S点屏 （三线SPI&RGB）

这个SPI只是用来初始化而已，初始化完了就和普通RGB没区别了。

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