system2.h

来自「STM8全部资料」· C头文件 代码 · 共 54 行

/********************************************************************************************************
*
* File                : system2.h
* Hardware Environment: 
* Build Environment   : ST Visual Develop 4.1.6
* Version             : V1.0
* By                  : Xiao xian hui
*
*                                  (c) Copyright 2005-2010, WaveShare
*                                       http://www.waveShare.net
*                                          All Rights Reserved
*
*********************************************************************************************************/

#ifndef _SYSTEM2_H
#define _SYSTEM2_H

#define LCD_DELAY() _asm("nop");_asm("nop");_asm("nop");_asm("nop");_asm("nop");

void delay_ms(u16 ms)
{
			u8 i;
			while(ms!=0)
			{
				for(i=0;i<250;i++)
				{}
				for(i=0;i<75;i++)
				{}
				ms--;
			}
}

void delay_us(u16 us)
{
			u8 i;
			while(us!=0)
			{
				for(i=0;i<25;i++)
				{}
				for(i=0;i<7;i++)
				{}
				us--;
			}
}

/* io configs */
#define sbi(io,bit)		( io  |=  (1<<bit) )
//example:sbi(PA_ODR,0);sbi(PA_DDR,0);
#define cbi(io,bit)		( io  &= ~(1<<bit) )	
//example:cbi(PA_ODR,0);cbi(PA_DDR,0);
#define gbi(pin ,bit)	( pin &   (1<<bit) )	
//example: gbi(PA_IDR,0);

#endif /*_SYSTEM2_H*/