TK499 TK80接口读写操作疑问？如何读取外部数据？
例程中有写入数据的例程，没有获取数据的方式void WriteComm(unsigned char CMD) //写命令
{
TK80->CMDIR = CMD;while(TK80->SR & 0x10000);
}
void WriteData(u32 dat) //写数据
{
TK80->DINR = dat;while(TK80->SR & 0x10000);
}
移植下面的函数需要怎么操作？
u16 GetPoint(u16 x,u16 y)
{
volatile u16 a;
WriteComm(0x2a);
WriteData(x>>8);
WriteData(x&0xff);
WriteComm(0x2b);
WriteData(y>>8);
WriteData(y&0xff);
WriteComm(0x2E);
a = *(__IO u16 *) (Bank1_LCD_D);
a = *(__IO u16 *) (Bank1_LCD_D);
return a;
} 本帖最后由 tiky 于 2019-10-22 17:14 编辑
用读寄存器就行了：a = TK80->DOUTR;while(TK80->SR & 0x10000);
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