global.h

基于avr单片机的氢气测控系统源代码

//////////////////////////////////////////////////////////////////////////
//     /src/global.h
//////////////////////////////////////////////////////////////////////////
//Added by Chen Hongquan.
//Well I'd like to define some usefull macro in order to control our valves
//and other component conveniently.
///////////////////////////////////////////////////////////////////////////
#ifndef __GLOBAL_H
#define __GLOBAL_H

//Here is keyboard code defination.
#define KEY1_PRESS_MASK     0x10
#define KEY2_PRESS_MASK     0x20
#define KEY3_PRESS_MASK     0x40
#define KEY4_PRESS_MASK     0x80

#define KEY1_RELEASE_MASK   ~KEY1_PRESS_MASK
#define KEY2_RELEASE_MASK   ~KEY2_PRESS_MASK
#define KEY3_RELEASE_MASK   ~KEY3_PRESS_MASK
#define KEY4_RELEASE_MASK   ~KEY4_PRESS_MASK

//Keyboard check delay.
//'cause I'd like to call _delay_ms function with this macro.

#define KEY_CHECK_DELAY     20 

//LED control mask.
//We can just use PORTX | LEDX_OFF to turn off the LED.
//And use PORX & LEDX_ON to turn on the LED.

#define LED1_OFF      0x80
#define LED2_OFF      0x40
#define LED3_OFF      0x02
#define LED4_OFF      0x01

#define LED1_ON       ~LED1_OFF
#define LED2_ON       ~LED2_OFF
#define LED3_ON       ~LED3_OFF
#define LED4_ON       ~LED4_OFF

//Valve control mask.
//The usage is same to LED control.
//Because there isn't any symbol to tag the valve.
//So I assumpt the one use IN4148 D1 is the No.1 and No2, No3.....
#define VALVE1_OFF    0x01
#define VALVE2_OFF    0x02
#define VALVE3_OFF    0x04
#define VALVE4_OFF    0x08

#define VALVE1_ON     ~VALVE1_OFF
#define VALVE2_ON     ~VALVE2_OFF
#define VALVE3_ON     ~VALVE3_OFF
#define VALVE4_ON     ~VALVE4_OFF

//Timer value.
//These timer values need to be implemented.

#define ONE_SEC

//Valve related time periods.

#define VALVE_TS1
#define VALVE_TS2
#define VALVE_TS3


//AD.
//This is the period of one round ad sampling.
#define AD_SAMPLE_TICK_TIMER

//These macro are 2 referrence pressure digital value.
//They should be set properly under test.
#define AD_PV1
#define AD_PV2

//LED. 
//At the beginning, I'd like to make LED flash twice to tell us LED's OK.
//So the flash time should be a short period.

#define LED_FLASH_PERIOD      2000

#endif