协议栈led分析

1、李曙英 2015. 2.28Led分析LedLed分析：认真阅读协议栈分析：认真阅读协议栈genericAppgenericApp工程里的工程里的led.cled.c和和led.hled.h文件，并分析文件，并分析1.1.文件中定义了几个文件中定义了几个ledled，硬件，硬件I/OI/O如何？找出这部分如何？找出这部分程序程序2.2.文件中文件中ledled的操作函数有哪些？具体说明每个函数的的操作函数有哪些？具体说明每个函数的功能。功能。定义LED名称#define HAL_LED_1 0 x01#define HAL_LED_1 0 x01#define HAL_LED_2 0 x02#

2、define HAL_LED_2 0 x02#define HAL_LED_3 0 x04#define HAL_LED_3 0 x04#define HAL_LED_4 0 x08#define HAL_LED_4 0 x08#define HAL_LED_ALL (HAL_LED_1 | HAL_LED_2 | #define HAL_LED_ALL (HAL_LED_1 | HAL_LED_2 | HAL_LED_3 | HAL_LED_4)HAL_LED_3 | HAL_LED_4)定义LED工作模式#define HAL_LED_MODE_OFF 0 x00#define HAL_L

3、ED_MODE_ON 0 x01#define HAL_LED_MODE_BLINK 0 x02#define HAL_LED_MODE_FLASH 0 x04#define HAL_LED_MODE_TOGGLE 0 x08LED其他相关定义#define HAL_LED_DEFAULT_MAX_LEDS 4#define HAL_LED_DEFAULT_MAX_LEDS 4#define HAL_LED_DEFAULT_DUTY_CYCLE #define HAL_LED_DEFAULT_DUTY_CYCLE 5 5 / /闪烁的默认亮灭的占空比#define HAL_LED_DEFAUL

4、T_FLASH_COUNT #define HAL_LED_DEFAULT_FLASH_COUNT 5050 / /默认的闪烁次数#define #define HAL_LED_DEFAULT_FLASH_TIME 1000HAL_LED_DEFAULT_FLASH_TIME 1000 / /默认的闪烁一次的时间为1000Led 硬件I/O 定义 # #define LED1_BV define LED1_BV BV(0)BV(0)#define LED1_SBIT P1_0#define LED1_SBIT P1_0#define LED1_DDR P1DIR#define LED1_DDR

5、 P1DIR# #define LED1_POLARITY ACTIVE_HIGHdefine LED1_POLARITY ACTIVE_HIGH#define BV(n) #define BV(n) (1 (n(1 (n) /) /“hal_defs.hhal_defs.h”#define ACTIVE_HIGH #define ACTIVE_HIGH ! / ! / # #define LED2_BV BV(1)define LED2_BV BV(1) #define LED2_SBIT P1_1 #define LED2_SBIT P1_1 #define LED2_DDR P1DIR

6、#define LED2_DDR P1DIR #define LED2_POLARITY ACTIVE_HIGH #define LED2_POLARITY ACTIVE_HIGH # #define LED3_BV BV(4)define LED3_BV BV(4) #define LED3_SBIT P1_4 #define LED3_SBIT P1_4 #define LED3_DDR P1DIR #define LED3_DDR P1DIR #define LED3_POLARITY ACTIVE_HIGH #define LED3_POLARITY ACTIVE_HIGH结构体：le

7、d控制参数typedef struct uint8 mode; /* 操作模式*/ uint8 todo; /* LED剩余闪烁的次数*/ uint8 onPct; /* LED闪烁的亮的占空比*/ uint16 time; /* 闪烁周期 S */ uint32 next; /*下一次转变的时间*/ HalLedControl_t;HalLedStatus_t结构体typedeftypedef structstruct HalLedControl_tHalLedControl_t HalLedControlTableHalLedControlTableHAL_LED_DEFAULT_MAX_

8、LEDS;HAL_LED_DEFAULT_MAX_LEDS; uint8 uint8 sleepActivesleepActive; ; HalLedStatus_tHalLedStatus_t; ;HalLedControlTableHalLedControlTableHAL_LED_DEFAULT_MAX_LEDSHAL_LED_DEFAULT_MAX_LEDS对每个LED的控制情况的数组，sleepActive是指在系统睡眠时候是否启用LED，如果是则为true，否则为falseHalLedState：全局变量，记录的是LED上次更新时候的状态 低四位分别表示四个LED。为1，它上次的状

9、态为ON， 为0，为OFFHalSleepLedState：全局变量，记录系统进入睡眠模式之前的四个LED的状态HalLedStatusControl：结构体的全局变量，记录四个LED的控制状态LED初始化 HAL_TURN_OFF_LED1( ); HAL_TURN_OFF_LED1( ); LED1_DDR |= LED1_BV; LED1_DDR |= LED1_BV; HAL_TURN_OFF_LED2HAL_TURN_OFF_LED2( ); ( ); LED2_DDR |= LED2_BV; LED2_DDR |= LED2_BV; HAL_TURN_OFF_LED3 HAL_TU

10、RN_OFF_LED3( ); ( ); LED3_DDR |= LED3_BV; LED3_DDR |= LED3_BV; P0INP P0INP |= PUSH2_BV|= PUSH2_BV; ; #define #define stst(x(x) do ) do x while (_LINE_ = -1 x while (_LINE_ = -1) )#define HAL_TURN_OFF_LED1#define HAL_TURN_OFF_LED1( ) ( ) stst( LED1_SBIT = LED1_POLARITY (0); ( LED1_SBIT = LED1_POLARIT

11、Y (0); ) )#define PUSH2_BV BV(0)#define PUSH2_BV BV(0)#define HAL_TURN_OFF_LED1#define HAL_TURN_OFF_LED1( ) ( ) stst( LED1_SBIT = LED1_POLARITY (0); ( LED1_SBIT = LED1_POLARITY (0); ) )#define HAL_TURN_ON_LED1#define HAL_TURN_ON_LED1( ) ( ) stst( LED1_SBIT = LED1_POLARITY (1); ( LED1_SBIT = LED1_POL

12、ARITY (1); ) )#define HAL_TOGGLE_LED2#define HAL_TOGGLE_LED2( ) ( ) stst( if (LED2_SBIT) LED2_SBIT = 0; ( if (LED2_SBIT) LED2_SBIT = 0; else else LED2_SBIT = 1; LED2_SBIT = 1; ) )#define HAL_STATE_LED3#define HAL_STATE_LED3( ) ( ) ( (LED3_POLARITY (LED3_SBIT)LED3_POLARITY (LED3_SBIT)void void HalLed

13、InitHalLedInit( void ( void ););uint8 uint8 HalLedSetHalLedSet( uint8 led, uint8 mode ( uint8 led, uint8 mode ););void void HalLedBlinkHalLedBlink( uint8 ( uint8 ledsleds, uint8 , uint8 cntcnt, uint8 , uint8 duty, uint16 time duty, uint16 time ););void void HalLedEnterSleepHalLedEnterSleep( void ( v

14、oid ););void void HalLedExitSleepHalLedExitSleep( void ( void ););uint8 uint8 HalLedGetStateHalLedGetState ( void ); ( void );void HalLedInit( void )LEDLED初始化：关闭所有的初始化：关闭所有的ledled， 定义为定义为闪烁的闪烁的ledled的的sleepactivesleepactive值值 为为FALSEFALSE，睡眠状态下不闪烁，睡眠状态下不闪烁uint8 HalLedSet( uint8 led, uint8 mode )将指定的将指定的ledled设置为设置为modemode模式模式参数：参数：led: ledled: led名称名称 mode: led mode: led工作模式工作模式 返回值：返回值：LEDLED的状态值的状态值void HalLedBlink( uint8 leds, uint8 cnt, uint8 duty, uint16 time )控制控制ledled闪烁闪烁参数：参数：leds:ledleds:led名称名称 cntcnt: :闪烁次数：闪烁次数：00永远闪烁永远闪烁 1-n: 1-n:闪烁闪烁n n次次 duty: duty:亮暗占空比，亮暗占空比，0-1000-1