第一次使用Sitronix的彩色LCD driver,开发故事书，电子书及数码相框，遇到了以下问题，请大虾们指教：
环境：使用的是LCD厂家成品LCD（ST7669）,8bit parallet接口
1）初始化程序调用资料上的（Initial_ST7669();56k颜色），基本没改，改了对比度参数，应该控制到了，很多命令的响应正确。
2）然后希望得到红绿蓝条纹,程序如下，有条纹，颜色错
void main()
{
...
Initial_ST7669();
...
WP7(LC,0x2c);
j=0xf800;
for (i=0;i<0x1000;i++)
{
WP7(LD,j>>8);
WP7(LD,j&0xff);
}
j=0xffff;
for (i=0;i<0x1000;i++)
{
WP7(LD,j>>8);
WP7(LD,j&0xff);
}
j=0x7e0;
for (i=0;i<0x1000;i++)
{
WP7(LD,j>>8);
WP7(LD,j&0xff);
}
j=0xffff;
for (i=0;i<0x1000;i++)
{
WP7(LD,j>>8);
WP7(LD,j&0xff);
}
j=0x1f;
for (i=0;i<0x1000;i++)
{
WP7(LD,j>>8);
WP7(LD,j&0xff);
}
WP7(LC,0x29);
while(1);
}
3）测试读写数据：
...
Initial_ST7669();
...
WP7(LC,0x2c);
for (i=0;i<0xa000;i++)
WP7(LD,0xff);
WP7(LC,0x2e);
for (i=0;i<0x100;i++)
{
j=RFlashByte(CS3Offset+1);//这个是根据我系统需要的一个外部存储器读子程序，地址设置肯定没错
TxHex(j);
}
//通过232得到数据：0x00,0xfc,0xfc,0xfc.....
for (i=0;i<0xa000;i++)
WP7(LD,0x00);
WP7(LC,0x2e);
for (i=0;i<0x100;i++)
{
j=RFlashByte(CS3Offset+1);//这个是根据我系统需要的一个外部存储器读子程序，地址设置肯定没错
TxHex(j);
}
//通过232得到数据：00 FC 1C C0 FC 1C C0 FC 1C C0 ...
3）显示RAM全部写0时，得到的好像是黑屏，全写0xff时，得到的是反而是白屏，因为颜色控制一直没调通
4）初始化程序
void Initial_ST7669()
{
//*****disable autoread + Manual read once
Write7669(LcdCmd,0xd7); //Auto Load Set
Write7669(LcdDat,0xdf); //Auto Load Disable
Write7669(LcdCmd,0xE0); //EE Read/write mode
Write7669(LcdDat,0x00); //Set read mode
Delay1ms(10);
Write7669(LcdCmd,0xE3); //Read active
Delay1ms(20);
Write7669(LcdCmd,0xE1); //Cancel control
//*****Sleep OUT
Write7669(LcdCmd,0x11); //Sleep Out
Write7669(LcdCmd,0x28); //Display OFF
Delay1ms(50);
//*****Vop setting
Write7669(LcdCmd,0xC0); //Set Vop by initial Module
Write7669(LcdDat,0x04); //Vop = 14V
Write7669(LcdDat,0x01); //base on Module
//*****Set Register
Write7669(LcdCmd,0xC3); //Bias select
Write7669(LcdDat,0x05); //1/9 Bias,base on Module
Write7669(LcdCmd,0xC4); //Setting Booster times
Write7669(LcdDat,0x07); //Booster X 8
Write7669(LcdCmd,0xC5); //Booster eff
Write7669(LcdDat,0x21); //BE = 0x01 (Level 2)
Write7669(LcdCmd,0xCB); //Vg with booster x2 control
Write7669(LcdDat,0x01); //Vg from Vdd2
Write7669(LcdCmd,0xCC); //ID1 = 00
Write7669(LcdDat,0x00); //
Write7669(LcdCmd,0xCE); //ID3 = 00
Write7669(LcdDat,0x00);
Write7669(LcdCmd,0xB7); //COM/SEG Direction for glass //
Write7669(LcdDat,0x48); //Setting by LCD module
Write7669(LcdCmd,0xD0); //Analog circuit setting
Write7669(LcdDat,0x1D); //
Write7669(LcdCmd,0xB5); //NLine
Write7669(LcdDat,0x8D); //NonRST,14line inversion
Write7669(LcdCmd,0xD7); //Auto read Set
Write7669(LcdDat,0x9F); //OTP Disable
Write7669(LcdCmd,0xB4); //PTL Mode Select
Write7669(LcdDat,0x18); //PTLMOD à Normal Mode
Write7669(LcdCmd,0x38); //Color mode = 65k
Write7669(LcdCmd,0x3A); //Color mode = 65k
Write7669(LcdDat,0x05); //
Write7669(LcdCmd,0x25); //Contrast
Write7669(LcdCmd,0x60);
Write7669(LcdCmd,0x36); //Memory Access Control //
//Write7669(LcdDat,0xC8); //Setting by LCD module
Write7669(LcdDat,0x00); //Setting by LCD module
Write7669(LcdCmd,0xB0); //Duty = 160 duty
Write7669(LcdDat,0x9F);
Write7669(LcdCmd,0x20); //Display Inversion OFF
//Write7669(LcdCmd,0x21); //Display Inversion ON
Write7669(LcdCmd,0xF7); //command for temp sensitivity.
Write7669(LcdCmd,0x06); //
Write7669(LcdCmd,0x2A); //COL//
Write7669(LcdDat,0x00); //0~127
Write7669(LcdDat,0x00);
Write7669(LcdDat,0x00);
Write7669(LcdDat,0x7F);
Write7669(LcdCmd,0x2B); //Page //
Write7669(LcdDat,0x00); //0~159
Write7669(LcdDat,0x00);
Write7669(LcdDat,0x00);
Write7669(LcdDat,0x9F);
}
|
楼主
标题置顶
标题高亮
