wsn_coordinator.c

基于ZigBee的Jennic ADC数据采集

/****************************************************************************/
/***        Include files                                                 ***/
/****************************************************************************/
#include <jendefs.h>
#include <ALSdriver.h>
#include <HTSdriver.h>
#include <LedControl.h>
#include <AppHardwareApi.h>
#include <Utilities.h>
#include <JZ_Api.h>
#include <gdb.h>
#include "..\..\..\Chip\Common\Include\Printf.h"

#include "WSN_Profile.h"

/****************************************************************************/
/***        Macro Definitions                                             ***/
/****************************************************************************/
/* Timing values */
#define APP_TICK_PERIOD_ms			100
#define APP_DATA_SEND_PERIOD_ms		2000    // 改为每2秒显示一次数值
#define APP_DATA_SEND_PERIOD		(APP_DATA_SEND_PERIOD_ms / APP_TICK_PERIOD_ms)

/****************************************************************************/
/***        Type Definitions                                              ***/
/****************************************************************************/
/* Battery reading state definitions */
typedef enum
{
	E_STATE_READ_BATT_VOLT_IDLE,
	E_STATE_READ_BATT_VOLTS_ADC_CONVERTING,
	E_STATE_READ_BATT_VOLTS_COMPLETE,
    E_STATE_READ_BATT_VOLTS_READY
}teStateReadBattVolt;

/* Temperature/Humidity Sensor - reading state definitions */
typedef enum
{
	E_STATE_READ_TEMP_HUMID_IDLE,
	E_STATE_READ_HUMID_RUNNING,
	E_STATE_READ_TEMP_HUMID_COMPLETE,
	E_STATE_READ_TEMP_START,
	E_STATE_READ_TEMP_HUMID_RUNNING,
	E_STATE_READ_TEMP_COMPLETE,
	E_STATE_READ_TEMP_HUMID_READY
}teStateReadTempHumidity;

/* Battery measurement data */
typedef struct
{
	uint16 					u16Reading;
	teStateReadBattVolt 	eState;
}tsBattSensor;

/* Temp/Humidity measurement data */
typedef struct
{
	uint16 					u16TempReading;
	uint16 					u16HumidReading;
	teStateReadTempHumidity eState;
}tsTempHumiditySensor;

/****************************************************************************/
/***        Local Function Prototypes                                     ***/
/****************************************************************************/
PRIVATE void vInit(void);
PRIVATE void vInitSensors(void);
PRIVATE void vReadTempHumidity(void);
PRIVATE void vReadBatteryVoltage(void);
PRIVATE void vAppTick(void *pvMsg, uint8 u8Param);
PRIVATE void vTxSerialDataFrame(uint16 u16NodeId,
                                uint16 u16Humidity,
                                uint16 u16Temperature,
                                uint16 u16BattVoltage);
/****************************************************************************/
/***        Exported Variables                                            ***/
/****************************************************************************/

/****************************************************************************/
/***        Local Variables                                               ***/
/****************************************************************************/
PRIVATE bool_t bNwkStarted = FALSE;
PRIVATE bool_t bAppTimerStarted = FALSE;

PRIVATE uint8 u8AppTicks = 0;
PRIVATE tsBattSensor sBattSensor;
PRIVATE tsTempHumiditySensor sTempHumiditySensor;


/****************************************************************************
 *
 * NAME: AppColdStart
 *
 * DESCRIPTION:
 * Entry point for application from boot loader. Initialises system and runs
 * main loop.
 *
 * RETURNS:
 * Never returns.
 *
 ****************************************************************************/
PUBLIC void AppColdStart(void)
{
	/* Debug hooks: include these regardless of whether debugging or not */
	HAL_GDB_INIT();
    HAL_BREAKPOINT();

	/* Set network information */
	JZS_sConfig.u32Channel = WSN_CHANNEL;
	JZS_sConfig.u16PanId   = WSN_PAN_ID;

    /* General initialisation */
    vInit();

    /* No return from the above function call */
}

/****************************************************************************
 *
 * NAME: AppWarmStart
 *
 * DESCRIPTION:
 * Entry point for application from boot loader. Simply jumps to AppColdStart
 * as, in this instance, application will never warm start.
 *
 * RETURNS:
 * Never returns.
 *
 ****************************************************************************/
PUBLIC void AppWarmStart(void)
{
    AppColdStart();
}

/****************************************************************************/
/***        Local Functions                                               ***/
/****************************************************************************/
/****************************************************************************
 *
 * NAME: vInit
 *
 * DESCRIPTION:
 * Initialises Zigbee stack and hardware. Final action is to start BOS, from
 * which there is no return. Subsequent application actions occur in the
 * functions defined above.
 *
 * RETURNS:
 * No return from this function
 *
 ****************************************************************************/
PRIVATE void vInit(void)
{

    /* Initialise Zigbee stack */
    JZS_u32InitSystem(TRUE);

    /* Set DIO for LEDs */
    vLedInitFfd();

    vLedControl(0,0);
    vLedControl(1,0);
    vLedControl(2,0);
    vLedControl(3,0);

    /* Intialise serial comms unless debug mode*/
    #ifndef GDB
        vUART_printInit();

    #endif

	/* Set sensors */
    vInitSensors();

    /* Start BOS */
    (void)bBosRun(TRUE);

    /* No return from the above function call */
}

/****************************************************************************
 *
 * NAME: vInitSensors
 *
 * DESCRIPTION:
 * Initialise the temperature/humidity sensor and set the ADC to measure the
 * supply voltage.
 *
 ****************************************************************************/
PRIVATE void vInitSensors(void)
{
    /* Initialise temp/humidity sensor interface */
    vHTSreset();
    sTempHumiditySensor.eState = E_STATE_READ_TEMP_HUMID_IDLE;

    /* Initialise ADC for internal battery voltage measurement */
	sBattSensor.eState = E_STATE_READ_BATT_VOLT_IDLE;

	vAHI_ApConfigure(E_AHI_AP_REGULATOR_ENABLE,
	                 E_AHI_AP_INT_DISABLE,
	                 E_AHI_AP_SAMPLE_2,
	                 E_AHI_AP_CLOCKDIV_2MHZ,
	                 E_AHI_AP_INTREF);

    /* Wait until the analogue peripheral regulator has come up before setting
       the ADC. */
    while(!bAHI_APRegulatorEnabled());

    vAHI_AdcEnable(E_AHI_ADC_CONVERT_DISABLE,
                   E_AHI_AP_INPUT_RANGE_2,
                   E_AHI_ADC_SRC_VOLT);
}
/****************************************************************************
 *
 * NAME: vTxSerialDataFrame
 *
 * DESCRIPTION:
 * Transmits node data (address and sensor readings) to host via serial port.
 *
 * PARAMETERS: Name           RW  Usage
 *             u16NodeId      R   Short address of node that generated the data
 *             u16Humidity    R   Reading from humidity sensor (%)
 *             u16Temperature R   Reading from temperature sensor (degrees C)
 *             u16BattVoltage R   ADC reading of supply voltage (mv)
 *
 ****************************************************************************/
PRIVATE void vTxSerialDataFrame(uint16 u16NodeId,
                                uint16 u16Humidity,
                                uint16 u16Temperature,
                                uint16 u16BattVoltage)
{
    #ifndef GDB
        vPrintf("\n\rAddress = %x  ", u16NodeId);
        vPrintf("Humidity = %d  ", u16Humidity);
        vPrintf("Temperature = %d  ", u16Temperature);
        vPrintf("Voltage = %d  ", u16BattVoltage);
	#endif
}
/****************************************************************************
 *
 * NAME: vAppTick
 *
 * DESCRIPTION:
 *
 * Called by a BOS timer expiry. Reads sensor data and if complete transmits
 * to coordinator.
 *
 ****************************************************************************/
PRIVATE void vAppTick(void *pvMsg, uint8 u8Param)
{
    uint8 u8Msg;
    uint8 u8TimerId;
    static bool_t bToggle;

	/* Read sensor data */
	vReadTempHumidity();
	vReadBatteryVoltage();

	if (u8AppTicks++ > APP_DATA_SEND_PERIOD)  // 每1s发送1次数据
	{
	    /* If sensor reads are compete */
	    if ((sBattSensor.eState == E_STATE_READ_BATT_VOLTS_READY) &&
            (sTempHumiditySensor.eState == E_STATE_READ_TEMP_HUMID_READY))
        {
		    /* Toggle LED1 to show we are alive */
		    if (bToggle)
		    {
		    	vLedControl(0,0);
		    }
		    else
		    {
		    	vLedControl(0,1);
		    }
		    bToggle = !bToggle;

		    u8AppTicks = 0;

         	vTxSerialDataFrame(0x0000, sTempHumiditySensor.u16HumidReading, sTempHumiditySensor.u16TempReading, sBattSensor.u16Reading);

           	sBattSensor.eState = E_STATE_READ_BATT_VOLT_IDLE;
            sTempHumiditySensor.eState = E_STATE_READ_TEMP_HUMID_IDLE;
		}
	}
    (void)bBosCreateTimer(vAppTick, &u8Msg, 0, (APP_TICK_PERIOD_ms / 10), &u8TimerId);
}
/****************************************************************************
 *
 * NAME: vReadBatteryVoltage
 *
 * DESCRIPTION:
 *
 * Uses ADC to read supply voltage. Measurement is performed using a state
 * machine to ensure that it never blocks.
 *
 ****************************************************************************/
PRIVATE void vReadBatteryVoltage(void)
{
    uint16 u16AdcReading;

	switch(sBattSensor.eState)
	{
		case E_STATE_READ_BATT_VOLT_IDLE:
	    	vAHI_AdcStartSample();
	    	sBattSensor.eState = E_STATE_READ_BATT_VOLTS_ADC_CONVERTING;
			break;

		case E_STATE_READ_BATT_VOLTS_ADC_CONVERTING:
	    	if (!bAHI_AdcPoll())
	    	{
	    	    sBattSensor.eState = E_STATE_READ_BATT_VOLTS_COMPLETE;
	    	}
			break;

		case E_STATE_READ_BATT_VOLTS_COMPLETE:

		    u16AdcReading = u16AHI_AdcRead();

		    /* Input range is 0 to 2.4V. ADC has full scale range of 12 bits.
		       Therefore a 1 bit change represents a voltage of approx 586uV */
		    sBattSensor.u16Reading = ((uint32)((uint32)(u16AdcReading * 586) +
                                     ((uint32)(u16AdcReading * 586) >> 1)))  /
                                     1000;

	    	sBattSensor.eState = E_STATE_READ_BATT_VOLTS_READY;
			break;

		case E_STATE_READ_BATT_VOLTS_READY:
			break;

		default:
			break;
	}
}

/****************************************************************************
 *
 * NAME: vReadTempHumidity