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yytyu

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注册时间： 2018-11-01

已发帖子： 34

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v3s 连接st7789屏显示闪屏，显示更新不正常

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整屏幕更新颜色是，看到屏幕的颜色闪动，如上图的变化。是st7789配置问题，还是驱动的问题？

yytyu

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注册时间： 2018-11-01

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Re: v3s 连接st7789屏显示闪屏，显示更新不正常

static void lcd_panel_st7789s_init(void)
{
	u32 x = 240, y = 320, sel = 0;

	sunxi_lcd_cpu_write_index(0x11);
	//sunxi_lcd_delay_ms(120); //Delay 120ms
	rt_thread_delay(120);
	//-------------Display and color format setting---------------
	sunxi_lcd_cpu_write_index(0x36);
	sunxi_lcd_cpu_write_data(0x00);   // 0x60  320*240    0x80 240*320    // 0x08  rgb 

/*
	sunxi_lcd_cpu_write_index(0x2A);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x01);
	sunxi_lcd_cpu_write_data(0x3f);

	sunxi_lcd_cpu_write_index(0x2B);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0xef);
*/
	sunxi_lcd_cpu_write_index(0x3a);	//262k,?????0X66, 65K,?????0X55
	sunxi_lcd_cpu_write_data(0x55);
	//----------ST7789S Frame rate setting----------

	sunxi_lcd_cpu_write_index(0xb2);
	sunxi_lcd_cpu_write_data(0x0c);  // 8
	sunxi_lcd_cpu_write_data(0x0c);  // 8
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x33);  // 22
	sunxi_lcd_cpu_write_data(0x33);  // 22

	sunxi_lcd_cpu_write_index(0xb3);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x0f);
	sunxi_lcd_cpu_write_data(0x0f);


	sunxi_lcd_cpu_write_index(0xb7);
	sunxi_lcd_cpu_write_data(0x35 );
	//----------ST7789S Power setting-----------------

	sunxi_lcd_cpu_write_index(0xbb);
	sunxi_lcd_cpu_write_data(0x28 );   // 27

	//sunxi_lcd_cpu_write_index(0,0xc0);
	//sunxi_lcd_cpu_write_data(0,0x6e ); //0x2c

	sunxi_lcd_cpu_write_index(0xc2);
	sunxi_lcd_cpu_write_data(0x01 );

	sunxi_lcd_cpu_write_index(0xc3);
	sunxi_lcd_cpu_write_data(0x10 );  //0b

	sunxi_lcd_cpu_write_index(0xc4);
	sunxi_lcd_cpu_write_data(0x20 );

	sunxi_lcd_cpu_write_index(0xc6);        
	sunxi_lcd_cpu_write_data(0x0f );  //0xf

	sunxi_lcd_cpu_write_index(0xd0);
	sunxi_lcd_cpu_write_data(0xa4 );
	sunxi_lcd_cpu_write_data(0xa1 );

	//-----------ST7789S gamma setting----------------
	sunxi_lcd_cpu_write_index(0xe0);
	sunxi_lcd_cpu_write_data(0xd0);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x02);
	sunxi_lcd_cpu_write_data(0x07);
	sunxi_lcd_cpu_write_data(0x0b);       //
	sunxi_lcd_cpu_write_data(0x1a);       // 19
	sunxi_lcd_cpu_write_data(0x31);       //2e
	sunxi_lcd_cpu_write_data(0x54);      //54
	sunxi_lcd_cpu_write_data(0x40);      //41
	sunxi_lcd_cpu_write_data(0x29);      //2d
	sunxi_lcd_cpu_write_data(0x12);       //17
	sunxi_lcd_cpu_write_data(0x12);     //18
	sunxi_lcd_cpu_write_data(0x12);      //12
	sunxi_lcd_cpu_write_data(0x17);      //17

	sunxi_lcd_cpu_write_index(0xe1);
	sunxi_lcd_cpu_write_data(0xd0);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x02);
	sunxi_lcd_cpu_write_data(0x07);
	sunxi_lcd_cpu_write_data(0x05);       // 04
	sunxi_lcd_cpu_write_data(0x25);       //24
	sunxi_lcd_cpu_write_data(0x2d);       //2c
	sunxi_lcd_cpu_write_data(0x44);       
	sunxi_lcd_cpu_write_data(0x45);        //42
	sunxi_lcd_cpu_write_data(0x1c);       //
	sunxi_lcd_cpu_write_data(0x18);          // 1a
	sunxi_lcd_cpu_write_data(0x16);     //17
	sunxi_lcd_cpu_write_data(0x1c);       //15
	sunxi_lcd_cpu_write_data(0x1d);       //18

	sunxi_lcd_cpu_write_index(0x29);
	//sunxi_lcd_delay_ms(20);
	rt_thread_delay(20);

	// addr x
	sunxi_lcd_cpu_write_index(0x2a);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data((x-1)>>8);
	sunxi_lcd_cpu_write_data((x-1)&0xff);

	//addr y

	sunxi_lcd_cpu_write_index(0x2b);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data(0x00);
	sunxi_lcd_cpu_write_data((y-1)>>8);
	sunxi_lcd_cpu_write_data((y-1)&0xff);

	sunxi_lcd_cpu_write_index(0x2C);
	//lcd_cpu_panel_fr(sel, x, y, 0, 0);
}

配置代码在bsp内复制出来的。
在rethread下运行显示。

phpweb

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注册时间： 2020-02-05

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Re: v3s 连接st7789屏显示闪屏，显示更新不正常

这个是 I80 还是 SPI ?

yytyu

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注册时间： 2018-11-01

已发帖子： 34

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Re: v3s 连接st7789屏显示闪屏，显示更新不正常

I8080 接口的

ubuntu

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注册时间： 2020-03-30

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Re: v3s 连接st7789屏显示闪屏，显示更新不正常

我的 V3s 驱动 ST7789 像素点也是逗得狠，特别是颜色过渡的地方，请问楼主最后怎么解决的呢？