type.h

Keil C 51单片机串口通信程序, 通过该程序可以了解和使用单片机串口通信

#define BOOL unsigned int
#define UINT unsigned int
#define ULNG unsigned long

union LongUnionType
{
	ULNG ulDword;

    struct
    {
    	UINT uiLowWord;
    	UINT uiHighWord;
    } words;
};