查看“模板:32inch-TOUCH-LCD-FAQ”的源代码

{{FAQ|该LCD的提供哪些电源参数？|
*LCD供电电压：2.5V~3.3V
*背光供电电压：4.5V~5V
*平均背光工作电流：150mA
*平均LCD面板工作电流：15mA|||}}
{{FAQ|该LCD可以接排线延迟吗？|
*可以，但延长线不能超过100mm，否则可能会导致通信失败。|||}}
{{FAQ|3.2inch 320x240 Touch LCD (C)这个和旧型号的3.2inch 320x240 Touch LCD (A) 有什么区别|
【相同点】：
* 接口一致，分辨率一致。
【区别】：
*3.2inch 320x240 Touch LCD (A) LCD控制芯片SSD1289
*3.2inch 320x240 Touch LCD (C) LCD控制芯片ILI9325|||}}
{{FAQ|我之前是用3.2inch 320x240 Touch LCD (A)的，现在要采购，要怎么办？|
*您好，A的已经停产了，您可以购买C型3.2inch 320x240 Touch LCD (C)这款，接口是兼容的。另外需要下载新版的示例程序资料，修改您现有的程序即可。|||}}
{{FAQ|LCD显示效果异常？|
*可能是初始化代码有问题，打开工程，用以下代码覆盖试试（如果是不同硬件平台的代码，可能需要作相应的修改）
<syntaxhighlight lang="c">
if( DeviceCode == 0x9325 || DeviceCode == 0x9328 ) 
 {
        LCD_Code = ILI9325;
        LCD_WriteReg(0xE5, 0x78F0); /* set SRAM internal timing */
        LCD_WriteReg(0x01, 0x0100); /* set Driver Output Control */
        LCD_WriteReg(0x02, 0x0700); /* set 1 line inversion */
        LCD_WriteReg(0x03, 0x1030); /* set GRAM write direction and BGR=1 */
        LCD_WriteReg(0x04, 0x0000); /* Resize register */
        LCD_WriteReg(0x08, 0x0207); /* set the back porch and front porch */
        LCD_WriteReg(0x09, 0x0000); /* set non-display area refresh cycle ISC[3:0] */
        LCD_WriteReg(0x0A, 0x0000); /* FMARK function */
        LCD_WriteReg(0x0C, 0x0000); /* RGB interface setting */
        LCD_WriteReg(0x0D, 0x0000); /* Frame marker Position */
        LCD_WriteReg(0x0F, 0x0000); /* RGB interface polarity */
        /*************Power On sequence ****************/
        LCD_WriteReg(0x10, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
        LCD_WriteReg(0x11, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */
        LCD_WriteReg(0x12, 0x0000); /* VREG1OUT voltage */
        LCD_WriteReg(0x13, 0x0000); /* VDV[4:0] for VCOM amplitude */
        LCD_WriteReg(0x07, 0x0001);
        delay_ms(200); 
        /* Dis-charge capacitor power voltage */
        LCD_WriteReg(0x10, 0x1090); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
        LCD_WriteReg(0x11, 0x0227); /* Set DC1[2:0], DC0[2:0], VC[2:0] */
        delay_ms(50);                          /* Delay 50ms */
        LCD_WriteReg(0x12, 0x001F); 
        delay_ms(50);                          /* Delay 50ms */
        LCD_WriteReg(0x13, 0x1500); /* VDV[4:0] for VCOM amplitude */
        LCD_WriteReg(0x29, 0x0027); /* 04 VCM[5:0] for VCOMH */
        LCD_WriteReg(0x2B, 0x000D); /* Set Frame Rate */
        delay_ms(50);                          /* Delay 50ms */
        LCD_WriteReg(0x20, 0x0000); /* GRAM horizontal Address */
        LCD_WriteReg(0x21, 0x0000); /* GRAM Vertical Address */
        /* ----------- Adjust the Gamma Curve ---------- */
#if 1  //不同批次Gamma值可能有一定差异，以下提供了我们常用的3组参数作为参考
	LCD_WriteReg(0x30, 0x0000);
	LCD_WriteReg(0x31, 0x0603);
	LCD_WriteReg(0x32, 0x0206);
	LCD_WriteReg(0x35, 0x0206);
	LCD_WriteReg(0x36, 0x0004);
	LCD_WriteReg(0x37, 0x0105);
	LCD_WriteReg(0x38, 0x0401);
	LCD_WriteReg(0x39, 0x0707);
	LCD_WriteReg(0x3C, 0x0602);
	LCD_WriteReg(0x3D, 0x0004);
#endif
#if 0
        LCD_WriteReg(0x30, 0x0000);
        LCD_WriteReg(0x31, 0x0707);
        LCD_WriteReg(0x32, 0x0307);
        LCD_WriteReg(0x35, 0x0200);
        LCD_WriteReg(0x36, 0x0008);
        LCD_WriteReg(0x37, 0x0004);
        LCD_WriteReg(0x38, 0x0000);
        LCD_WriteReg(0x39, 0x0707);
        LCD_WriteReg(0x3C, 0x0002);
        LCD_WriteReg(0x3D, 0x1D04);
#endif
#if 0		
	LCD_WriteReg(0x30,0x0007); 
	LCD_WriteReg(0x31,0x0707);   
	LCD_WriteReg(0x32,0x0006);
	LCD_WriteReg(0x35,0x0704);
	LCD_WriteReg(0x36,0x1f04); 
	LCD_WriteReg(0x37,0x0004);
	LCD_WriteReg(0x38,0x0000);        
	LCD_WriteReg(0x39,0x0706);     
	LCD_WriteReg(0x3c,0x0701);
	LCD_WriteReg(0x3d,0x000f);
#endif
        /* ------------------ Set GRAM area --------------- */
        LCD_WriteReg(0x50, 0x0000); /* Horizontal GRAM Start Address */
        LCD_WriteReg(0x51, 0x00EF); /* Horizontal GRAM End Address */
        LCD_WriteReg(0x52, 0x0000); /* Vertical GRAM Start Address */
        LCD_WriteReg(0x53, 0x013F); /* Vertical GRAM Start Address */
        LCD_WriteReg(0x60, 0xA700); /* Gate Scan Line */
        LCD_WriteReg(0x61, 0x0001); /* NDL,VLE, REV */
        LCD_WriteReg(0x6A, 0x0000); /* set scrolling line */
        /* -------------- Partial Display Control --------- */
        LCD_WriteReg(0x80, 0x0000);
        LCD_WriteReg(0x81, 0x0000);
        LCD_WriteReg(0x82, 0x0000);
        LCD_WriteReg(0x83, 0x0000);
        LCD_WriteReg(0x84, 0x0000);
        LCD_WriteReg(0x85, 0x0000);
        /* -------------- Panel Control ------------------- */
        LCD_WriteReg(0x90, 0x0010);
        LCD_WriteReg(0x92, 0x0600);
        LCD_WriteReg(0x07, 0x0133); /* 262K color and display ON */
}
</syntaxhighlight>
|||}}