main.h

来自「AVR单片机做的MP3」· C头文件 代码 · 共 6 行

#define uint8 unsigned char 
#define uint16 unsigned int 
#define uint32 unsigned long
 
#define key_init() DDRA&=0x0f;PORTA|=0xf0;DDRC&=0xfe;PORTC|=0x01;