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标题: 初学LCD，换更大的英文字体字符显示函数需要更改哪些地方 [打印本页]

作者: yjamdfhqjs 时间: 2021-6-15 20:57
标题: 初学LCD，换更大的英文字体字符显示函数需要更改哪些地方
这两天在驱动HJR买的一个2.0的320*240的屏，需要更改一下字体，但是按照新的码表写进去显示的一直不对

8*8英文字体ascii码示例：

0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x7E,  // -+-
0x18,0x18,0x00,0x00,0x00,0x00,0x00,0x00,

之前的8*8字体显示一个字符函数：
void SPILCD_ShowChar(unsigned short x,unsigned short y,unsigned char num, unsigned int fColor, unsigned int bColor,unsigned char flag)
{
unsigned char temp;
unsigned int pos,i,j;

num=num-' ';//µÃµ½Æ«ÒÆºóµÄÖµ
i=num*16;
for(pos=0;pos<16;pos++)
{
temp=nAsciiDot[i+pos]; //µ÷Í¨µ÷ÓÃASCII×ÖÌå
for(j=0;j<8;j++)
{
if(temp&0x80)
DrawPixel(x+j,y,fColor);
else
if(flag) DrawPixel(x+j,y,bColor); //Èç¹û±³¾°É«±êÖ¾flagÎª1
temp<<=1;
}
y++;
}
}

24*40英文字体ascii码示例：
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  // -+-
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x20,0x00,0x00,0x20,0x00,0x00,
0x20,0x00,0x00,0x20,0x00,0x00,0x20,0x00,
0x00,0x20,0x00,0x00,0x20,0x00,0x00,0x20,
0x00,0x00,0x20,0x00,0x3F,0xFF,0xE0,0x00,
0x20,0x00,0x00,0x20,0x00,0x00,0x20,0x00,
0x00,0x20,0x00,0x00,0x20,0x00,0x00,0x20,
0x00,0x00,0x20,0x00,0x00,0x20,0x00,0x00,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

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