Hello,everyone,
I have builded a simple structure which contained a ED,a RE and a AP by CC1110 with the help of Ifriedman and Stig. Each device can sample the temperature of itself. And then the temperature of the three device will be sent to AP together, and sent to the pC through series port .The process is shown below.
But there is always a device inspect the temperature much too different from that of other device. For example, yesterday, the AP 's temperature is always above 30 centigrade. and other devices's temperature are a little more than 20 centigrade.If the device isn't added to the work of net, it will show the temperature closed to the enviroment. Once it paticipate in the network, its temperature will increase quickly.
Please tell me what cause the problem if you ever approch the problem or have an idea, thank you very much!
The procedure to inspect temperature is below:
#ifndef TEMP_H
#define TEMP_H
#include "ioCC1110.h"
typedef unsigned char BOOL;
// Data
typedef unsigned char BYTE;
typedef unsigned short WORD;
typedef unsigned long DWORD;
// Unsigned numbers
typedef unsigned char UINT8;
typedef unsigned char INT8U;
typedef unsigned short UINT16;
typedef unsigned short INT16U;
typedef unsigned long UINT32;
typedef unsigned long INT32U;
// Signed numbers
typedef signed char INT8;
typedef signed short INT16;
typedef signed long INT32;
#define ADC_REF_1_25_V 0x00
#define ADC_14_BIT 0x30
#define ADC_TEMP_SENS 0x0E
#define DISABLE_ALL_INTERRUPTS() (IEN0 = IEN1 = IEN2 = 0x00)
#define ADC_SINGLE_CONVERSION(settings) \
do{ ADCCON3 = (settings); }while(0)
#define ADC_SAMPLE_SINGLE() \
do { ADC_STOP(); ADCCON1 |= 0x40; } while (0)
#define ADC_SAMPLE_READY() (ADCCON1 & 0x80)
#define ADC_STOP() \
do { ADCCON1 |= 0x30; } while (0)
#define ADC14_TO_CELSIUS(ADC_VALUE) ( ((ADC_VALUE) >> 4) - 315)
/******************************************************************************
******************* Power and clock management ********************
*******************************************************************************
These macros are used to set power-mode, clock source and clock speed.
******************************************************************************/
// Macro for getting the clock division factor
#define CLKSPD (CLKCON & 0x07)
// Macro for getting the timer tick division factor.
#define TICKSPD ((CLKCON & 0x38) >> 3)
// Macro for checking status of the crystal oscillator
#define XOSC_STABLE (SLEEP & 0x40)
// Macro for checking status of the high frequency RC oscillator.
#define HIGH_FREQUENCY_RC_OSC_STABLE (SLEEP & 0x20)
// Macro for setting power mode
#define SET_POWER_MODE(mode) \
do { \
if(mode == 0) { SLEEP &= ~0x03; } \
else if (mode == 3) { SLEEP |= 0x03; } \
else { SLEEP &= ~0x03; SLEEP |= mode; } \
PCON |= 0x01; \
asm("NOP"); \
}while (0)
// Where _mode_ is one of
#define POWER_MODE_0 0x00 // Clock oscillators on, voltage regulator on
#define POWER_MODE_1 0x01 // 32.768 KHz oscillator on, voltage regulator on
#define POWER_MODE_2 0x02 // 32.768 KHz oscillator on, voltage regulator off
#define POWER_MODE_3 0x03 // All clock oscillators off, voltage regulator off
// Macro for setting the 32 KHz clock source
#define SET_32KHZ_CLOCK_SOURCE(source) \
do { \
if( source ) { \
CLKCON |= 0x80; \
} else { \
CLKCON &= ~0x80; \
} \
} while (0)
// Where _source_ is one of
#define CRYSTAL 0x00
#define RC 0x01
// Macro for setting the main clock oscillator source,
//turns off the clock source not used
//changing to XOSC will take approx 150 us
#define SET_MAIN_CLOCK_SOURCE(source) \
do { \
if(source) { \
CLKCON |= 0x40; \
while(!HIGH_FREQUENCY_RC_OSC_STABLE); \
SLEEP |= 0x04; \
} \
else { \
SLEEP &= ~0x04; \
while(!XOSC_STABLE); \
asm("NOP"); \
CLKCON &= ~0x47; \
SLEEP |= 0x04; \
} \
}while (0)
void initTempSensor(void);
INT8 getTemperature(void);
#endif
#include "temp.h"
void initTempSensor(void){
DISABLE_ALL_INTERRUPTS();
SET_MAIN_CLOCK_SOURCE(0);
*((BYTE __xdata*) 0xDF26) = 0x80;//change later
// initLcd();
}
INT8 getTemperature(void){
UINT8 i;
UINT16 accValue;
UINT16 value;
accValue = 0;
for( i = 0; i < 4; i++ )
{
ADC_SINGLE_CONVERSION(ADC_REF_1_25_V | ADC_14_BIT | ADC_TEMP_SENS);
ADC_SAMPLE_SINGLE();
while(!ADC_SAMPLE_READY());
value = ADCL >> 2;
value |= (((UINT16)ADCH) << 6);
accValue += value;
}
value = accValue >> 2; // devide by 4
return ADC14_TO_CELSIUS(value);
}
****************************************************************/
void main(void)
{
char i;
char temperature[10];
INT16 avgTemp;
initUARTtest(); //初始化串口
initTempSensor(); //初始化ADC
while(1)
{
avgTemp = 0;
for(i = 0 ; i < 64 ; i++)
{
avgTemp += getTemperature();
}
avgTemp /= 64;
sprintf(temperature, (char *)"%dC", (INT8)avgTemp);
UartTX_Send_String(temperature,6);
UartTX_Send_word(0x0A);
Delay(20000);
}
}
