[经验]

【VEML6040环境颜色检测试用体验】环境颜色检测开发套件测评(4)

2017-3-21 14:09:30

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本帖最后由 jinglixixi 于 2017-3-21 14:10 编辑

前面我们对套件的源代码进行了一定程度的解读，在此基础上为了弥补当初为拍照LOGO而将程序误擦除的遗憾，只需在 PUtimage(LOGO)语句后加一条while(1)即可让显示停顿下来，拍到的LOGO显示效果则如图1所示。

图1 LOGO显示效果

通过对源程序的分析可以发现该套件是能够实现中文显示的，该函数为void PUTchar8x16(unsigned char row,unsigned char col,unsigned char *pcStr,unsigned char flag);

其中，row为行位置，col为列位置，pcStr为中文字符串， flag为显示标志列位置。

由于LCM_12864自身不带中文字库，所以使用的字库必须构建在程序中,其字库结构如下：

const unsigned char CHINESE[]=
{
0x40,0x40,0x42,0xCC,0x00,0x00,0xFC,0x24,0xA4,0x24,0x22,0x22,0xA3,0x62,0x00,0x00,
0x00,0x40,0x20,0x1F,0x20,0x58,0x47,0x50,0x48,0x45,0x42,0x45,0x48,0x50,0x40,0x00,/*"退",0*/
0x00,0x00,0xFE,0x02,0x02,0xF2,0x12,0x12,0x12,0xF2,0x02,0x02,0xFE,0x00,0x00,0x00,
0x00,0x00,0x7F,0x20,0x20,0x27,0x24,0x24,0x24,0x27,0x20,0x20,0x7F,0x00,0x00,0x00,/*"出",1*/
0x10,0x60,0x02,0x8C,0x00,0x0C,0xA4,0xA4,0xA5,0xE6,0xA4,0xA4,0xA4,0x0C,0x00,0x00,
0x04,0x04,0x7E,0x01,0x00,0x80,0x4F,0x2A,0x0A,0x0F,0x0A,0x2A,0x4F,0x80,0x00,0x00,/*"演",2*/
0x40,0x40,0x42,0x42,0x42,0x42,0x42,0xC2,0x42,0x42,0x42,0x42,0x42,0x40,0x40,0x00,
0x20,0x10,0x08,0x06,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x02,0x04,0x08,0x30,0x00,/*"示",3*/
};