LCD屏幕调试过程（驱动IC ST7701s）

2023-12-24 00:13| 来源: 网络整理| 查看: 265

调试准备工作

1.屏幕开发手册；

2.逻辑分析仪（用来捕获信号，信号是否正确）；

3.驱动板，驱动屏幕显示；

屏幕接口

根据手册的说明，可以知道屏幕的一些关键信息，比方说，这里的接口是3SPI+18位的RGB接口，这样我们可以配置我的驱动板接口，这里3SPI是指输入输出使用同一个通道；通过屏幕厂商那里得知使用的9位spi；

这里的屏幕是通过SPI进行驱动，需要通过SPI将命令和数据发送给屏幕进行配置（比如使用的接口，RGB前沿、后沿和位数等等）；

SPI配置好以后，发送配置数据，代码如下,W_C是发送命令，W_D是发送数据：

W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x13); W_C (0xEF); W_D (0x08); W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x10); W_C (0xC0); W_D (0xE5); W_D (0x02); W_C (0xC1); W_D (0x0C); W_D (0x0A); W_C (0xC2); W_D (0x07); W_D (0x0F); W_C (0xC3); W_D (0x02); W_C (0xCC); W_D (0x10); W_C (0xB0); W_D (0x00); W_D (0x08); W_D (0x51); W_D (0x0D); W_D (0xCE); W_D (0x06); W_D (0x00); W_D (0x08); W_D (0x08); W_D (0x1D); W_D (0x02); W_D (0xD0); W_D (0x0F); W_D (0x6F); W_D (0x36); W_D (0x3F); W_C (0xB1); W_D (0x00); W_D (0x10); W_D (0x4F); W_D (0x0C); W_D (0x11); W_D (0x05); W_D (0x00); W_D (0x07); W_D (0x07); W_D (0x1F); W_D (0x05); W_D (0xD3); W_D (0x11); W_D (0x6E); W_D (0x34); W_D (0x3F); W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x11); W_C (0xB0); W_D (0x4D); W_C (0xB1); W_D (0x1C); W_C (0xB2); W_D (0x87); W_C (0xB3); W_D (0x80); W_C (0xB5); W_D (0x47); W_C (0xB7); W_D (0x85); W_C (0xB8); W_D (0x21); W_C (0xB9); W_D (0x10); W_C (0xC1); W_D (0x78); W_C (0xC2); W_D (0x78); W_C (0xD0); W_D (0x88); Delay(100); W_C (0xE0); W_D (0x80); W_D (0x00); W_D (0x02); W_C (0xE1); W_D (0x04); W_D (0xA0); W_D (0x00); W_D (0x00); W_D (0x05); W_D (0xA0); W_D (0x00); W_D (0x00); W_D (0x00); W_D (0x60); W_D (0x60); W_C (0xE2); W_D (0x30); W_D (0x30); W_D (0x60); W_D (0x60); W_D (0x3C); W_D (0xA0); W_D (0x00); W_D (0x00); W_D (0x3D); W_D (0xA0); W_D (0x00); W_D (0x00); W_D (0x00); W_C (0xE3); W_D (0x00); W_D (0x00); W_D (0x33); W_D (0x33); W_C (0xE4); W_D (0x44); W_D (0x44); W_C (0xE5); W_D (0x06); W_D (0x3E); W_D (0xA0); W_D (0xA0); W_D (0x08); W_D (0x40); W_D (0xA0); W_D (0xA0); W_D (0x0A); W_D (0x42); W_D (0xA0); W_D (0xA0); W_D (0x0C); W_D (0x44); W_D (0xA0); W_D (0xA0); W_C (0xE6); W_D (0x00); W_D (0x00); W_D (0x33); W_D (0x33); W_C (0xE7); W_D (0x44); W_D (0x44); W_C (0xE8); W_D (0x07); W_D (0x3F); W_D (0xA0); W_D (0xA0); W_D (0x09); W_D (0x41); W_D (0xA0); W_D (0xA0); W_D (0x0B); W_D (0x43); W_D (0xA0); W_D (0xA0); W_D (0x0D); W_D (0x45); W_D (0xA0); W_D (0xA0); W_C (0xEB); W_D (0x00); W_D (0x01); W_D (0x4E); W_D (0x4E); W_D (0xEE); W_D (0x44); W_D (0x00); W_C (0xED); W_D (0xFF); W_D (0xFF); W_D (0x04); W_D (0x56); W_D (0x72); W_D (0xFF); W_D (0xFF); W_D (0xFF); W_D (0xFF); W_D (0xFF); W_D (0xFF); W_D (0x27); W_D (0x65); W_D (0x40); W_D (0xFF); W_D (0xFF); W_C (0xEF); W_D (0x10); W_D (0x0D); W_D (0x04); W_D (0x08); W_D (0x3F); W_D (0x1F); W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x13); W_C (0xE8); W_D (0x00); W_D (0x0E); W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x00); W_C (0x11); Delay(120); W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x13); W_C (0xE8); W_D (0x00); W_D (0x0C); Delay(10 ); W_C (0xE8); W_D (0x00); W_D (0x00); W_C (0xFF); W_D (0x77); W_D (0x01); W_D (0x00); W_D (0x00); W_D (0x00); W_C (0x3A); W_D (0x55); W_C (0x36); W_D (0x00); W_C (0x35); W_D (0x00); W_C (0x29);

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