华侨大学传感器实验(3)

传感器实验四

姓名林梦柔学号1315212023时间2015.11.25

7.4数码管控制实验

程序

#define uint8 unsigned char

#define uint16 unsigned int

#define uint32 unsigned long

#include "ioCC2530.h"

#define SHT1DATA_HIGH P1 |= 0x40

#define SHT1DATA_LOW P1 &= 0xBF

#define SHT1SCK_HIGH P1 |= 0x80

#define SHT1SCK_LOW P1 &= 0x7F

#define SHT1READY (P1>>6)&0X1

/***************************************************************************** 函数声明

*****************************************************************************/ void Sensor_PIN_INT(void);

uint16 ReadAdcValue(uint8 ChannelNum,uint8 DecimationRate,uint8 RefVoltage);

void SHT1_Reset(void);

void SHT1_Start(void);

void SHT1_SendAck(void);

void SHT1_WriteCommandData(uint8);

uint8 SHT1_ReadData(void);

uint8 SHT1_Ready(void);

void SHT1_WriteReg(uint8);

uint16 SHT1_ReadReg(void);

void SHT1_INT(void);

uint32 ReadSHT1(uint8 Addr);

uint8 ReadTc77(void);

void SET_ADC_IO_SLEEP_MODE(void);

void SET_ADC_IO_ADC_MODE(void);

extern void UartTX_Send_String(uint8 *Data,int len);

/*函数功能:读出AD口的数据

输入参数:ChannelNum:采集的通道号0-0xF

1000: AIN0–AIN1

1001: AIN2–AIN3

1010: AIN4–AIN5

1011: AIN6–AIN7

1100: GND

1101: Reserved

1110: Temperature sensor

1111: VDD/3

DecimationRate:分辩率00: 64 decimation rate (7 bits ENOB)

01: 128 decimation rate (9 bits ENOB)

10: 256 decimation rate (10 bits ENOB)

11: 512 decimation rate (12 bits ENOB)

RefVoltage:参考电压:00: Internal reference

01: External reference on AIN7 pin

10: AVDD5 pin

11: External reference on AIN6–AIN7 differential input

返回值:16bit的采集数据*/

uint16 ReadAdcValue(uint8 ChannelNum,uint8 DecimationRate,uint8 RefVoltage)

{ uint16 AdValue;

if(ChannelNum == 0xe){//片内温度到ADC_SOC

TR0 = 1;

ATEST = 1;}

else{TR0 = 0;

ATEST = 0;}

ADCCON3 = ChannelNum&0xf;

ADCCON3 = ADCCON3 | ((DecimationRate&0x3)<<4);

ADCCON3 = ADCCON3 | ((RefVoltage&0x3)<<6);

ADCCON1 = ADCCON1 | (0x3<<4);//ADCCON1.ST = 1时启动

AdValue = ADCL; //清除EOC

AdValue = ADCH;

ADCCON1 = ADCCON1 | (0x1<<6);//启动转换

while(!(ADCCON1&0x80));

AdValue = ADCH;

AdValue = (AdValue<<6) + (ADCL>>2);

ADCCON1 = ADCCON1 & 0x7f;

return AdValue;}

/***************************************************************************** void Sensor_PIN_INT(void)

传感器及ADC I/O口初始化.

*****************************************************************************/ void Sensor_PIN_INT(void)

{ //用于传感器类型的读取

P2INP &= (~(1<<6)); //P1口上拉使能

P1INP &= (~(0x1 | (0x1<<1) | (0x1<<2) | (0x1<<6) | (0x1<<7)));//P1.0,P1.1,P1.2,P1.6,P1.7上拉

//用于人体感应的读取

P0SEL &= ~(1<<5);//P05为GPIO

P0DIR &= ~(1<<5);//P05为INPUT

APCFG = (0x1<<1)|(0x1<<4)|(0x1<<6);//P01,P04,P06为ADC口//用于温湿度测量

P1SEL &= ~((1<<6)|(1<<7));//P16,P17为GPIO

P1DIR |= (1<<6)|(1<<7);//P16,P17为OUTPUT

P1SEL |= (1<<3);//P13为外设功能

PICTL &= ~(1<<1); //P10~P13上升沿触发

P1IEN |= (1<<3);//P13中断使能

IEN2 |= (1<<4);//P1口中断使能}

//当uC和SHT10通信中断时,复位通信口

void SHT1_Reset(void)

{uint8 i;

SHT1DATA_HIGH;

for(i=0;i<10;i++){

SHT1SCK_LOW;

SHT1SCK_HIGH; }

}

//传输启始信号

void SHT1_Start(void)

{SHT1DATA_HIGH;

SHT1SCK_HIGH;

SHT1DATA_LOW;

SHT1SCK_LOW;

SHT1SCK_HIGH;

SHT1DATA_HIGH; }

//为0时,写命令正确;为1时错误

uint8 SHT1_Ready(void)

{ //读应答信号

SHT1DATA_HIGH;

return(SHT1READY);}

void SHT1_SendAck(void)

{SHT1SCK_HIGH;

SHT1SCK_LOW; }

//为0时,写命令正确;为1时错误

void SHT1_WriteCommandData(uint8 bCommand)

{uint8 i;

SHT1SCK_LOW;

for(i=0;i<8;i++){

if(bCommand&(0x1<<(7-i)))

SHT1DATA_HIGH;

else

SHT1DATA_LOW;

SHT1SCK_HIGH;

SHT1SCK_LOW; }

}

//读一个字节的数据

uint8 SHT1_ReadData(void)

{uint8 i,bResult;

bResult = 0;

SHT1DATA_HIGH;

for(i=0;i<8;i++){

if(SHT1_Ready() != 0)

bResult |= (0x1<<(7-i));

SHT1SCK_HIGH;

SHT1SCK_LOW; }

return bResult;}

//写状态寄存器

void SHT1_WriteReg(uint8 Value) {while(1){

SHT1_Start();

SHT1_WriteCommandData(6);

if(SHT1_Ready() != 0){ //无应答

SHT1_Reset();

continue;}

else

SHT1_SendAck();

SHT1_WriteCommandData(Value);

if(SHT1_Ready() != 0){ //无应答

SHT1_Reset();

continue;}

else

SHT1_SendAck();

break;}

}

uint16 SHT1_ReadReg(void)

{uint16 lResult;

while(1){ SHT1_Start();

SHT1_WriteCommandData(7);

if(SHT1_Ready() != 0){ //无应答

SHT1_Reset();

continue; }

else{SHT1_SendAck();

break; }

}

lResult = (SHT1_ReadData()<<8); SHT1DATA_LOW;

SHT1_SendAck();

lResult |= SHT1_ReadData();

SHT1DATA_HIGH;

SHT1_SendAck();

return lResult;}

/*void SHT1_INT(void){

}*/

uint32 ReadSHT1(uint8 Addr)

{uint32 lResult;

while(1){

SHT1_Start();

SHT1_WriteCommandData(Addr);

if(SHT1_Ready() != 0){ //无应答

SHT1_Reset();

continue; }

else{SHT1_SendAck();

break;}

}

while(SHT1_Ready() == 1);

lResult = SHT1_ReadData();

lResult = lResult<<16;

SHT1DATA_LOW;

SHT1_SendAck();

lResult |= ((uint16)SHT1_ReadData()<<8);

SHT1DATA_LOW;

SHT1_SendAck();

lResult |= SHT1_ReadData();

SHT1DATA_HIGH;

SHT1_SendAck();

return lResult;}

现象：

数码管从0至F循环显示，按S2复位，按S1数码管显示暂停，但内部程序还在跑（即后台数字与前台显示不一样），松开S1会根据按S1键的时间，数码管之间跳去从当前后台数字开始继续循环显示

7.5

程序

#include "ioCC2530.h"

#define uint8 unsigned char

#define uint16 unsigned int

#define uint32 unsigned long

extern void Sensor_PIN_INT(void);

extern uint32 ReadSHT1(uint8 Addr);

char uart_buffer;

void delay(void)

{unsigned int i;

unsigned char j;

for(i=0;i<1500;i++)

{for(j=0;j<200;j++)

{asm("NOP");

asm("NOP");

asm("NOP");}

}

}

void UartTX_Send_String(unsigned char *Data,int len) //串口发送函数{int j;

for(j=0;j

{U0DBUF = *Data++;

while(UTX0IF == 0);

UTX0IF = 0;}

}

void UartTX_Send_Data(unsigned char Data,int len) //串口发送函数

{int j;

for(j=0;j

{U0DBUF = Data;

while(UTX0IF == 0);

UTX0IF = 0;}

}

#pragma vector=URX0_VECTOR //uart0中断函数

__interrupt void uart0(void){

URX0IF = 0; //清中断标志

P0_0=~P0_0;

uart_buffer = U0DBUF;

//UartTX_Send_String("welcome",10);

UartTX_Send_Data(uart_buffer,1);}

void main( void )

{unsigned long lTemp;

float RHTValue;

unsigned char buf[8];

P0DIR |= 0x01; //设置P0.0为输出方式；P0.4和P0.5为输入方式

P2DIR |= 0x01; //设置P2.0为输出方式

P0_0 = 1;

P2_0 = 1; //熄灭LED

CLKCONCMD &= ~0x40; //选择32M晶振

while(!(SLEEPSTA & 0x40)); //等待XSOC稳定

CLKCONCMD = 0xb8; //TICHSPD 128分频，CLKSPD 不分频

SLEEPCMD |= 0x04; //关闭不用的RC 振荡器

PERCFG = 0x00; //位置1 P0 口

P0SEL = 0x3c; //P0 用作串口

U0CSR |= 0x80; //UART 方式

U0GCR |= 10; //baud_e = 10;

U0BAUD |= 216; //波特率设为57600

UTX0IF = 1;

U0CSR |= 0X40; //允许接收

IEN0 |= 0x84; //开总中断，接收中断

Sensor_PIN_INT();

UartTX_Send_String("Testing...\r\n",12);

while(1){

lTemp = ReadSHT1(3);//14bit温度

lTemp = lTemp >> 8;

RHTValue = lTemp;

RHTValue = 0.01 * RHTValue - 39.64;

buf[0] = (uint8)RHTValue;//温湿度传感器温度

buf[0] = ( ((buf[0]/10)<<4) + (buf[0]%10) );

buf[1] = (buf[0]>>4)&0xf;

if(buf[1] > 0x9)

buf[1] = buf[1] - 0XA + 'A';

else

buf[1] = buf[1] + '0';

buf[2] = (buf[0])&0xf;

if(buf[2] > 0x9)

buf[2] = buf[2] -0XA + 'A';

else

buf[2] = buf[2] + '0';

lTemp = ReadSHT1(5);//12bit湿度

lTemp = lTemp >> 8;

RHTValue = lTemp;

RHTValue = 0.0405 * RHTValue -4 - 2.8*RHTValue*RHTValue/1000000;

buf[3] = (uint8)RHTValue;//温湿度传感器湿度

buf[3] = ( ((buf[3]/10)<<4) + (buf[3]%10) );

buf[4] = (buf[3]>>4)&0xf;

if(buf[4] > 0x9)

buf[4] = buf[4] - 0XA + 'A';

else

buf[4] = buf[4] + '0';

buf[5] = (buf[3])&0xf;

if(buf[5] > 0x9)

buf[5] = buf[5] -0XA + 'A';

else

buf[5] = buf[5] + '0';

UartTX_Send_String("Temperature = ",14);

UartTX_Send_String(&buf[1],1);

UartTX_Send_String(&buf[2],1);

UartTX_Send_String(" ",4);

UartTX_Send_String("humidity = ",11);

UartTX_Send_String(&buf[4],1);

UartTX_Send_String(&buf[5],1);

UartTX_Send_String("\r\n",2);

delay(); }

} // end of main()

现象：

自动不断显示温湿度，若对着传感器吹口气，温湿度会变化，过段时间又变回原值

7.6

程序

#include "ioCC2530.h"

#define uint8 unsigned char

#define uint16 unsigned int

#define uint32 unsigned long

extern void Sensor_PIN_INT(void);

extern uint16 ReadAdcValue(uint8 ChannelNum,uint8 DecimationRate,uint8 RefVoltage); char uart_buffer;

void delay(void)

{unsigned int i;

unsigned char j;

for(i=0;i<1500;i++)

{for(j=0;j<200;j++)

{asm("NOP");

asm("NOP");

asm("NOP");}

}

}

void UartTX_Send_String(unsigned char *Data,int len) //串口发送函数

{int j;

for(j=0;j

{U0DBUF = *Data++;

while(UTX0IF == 0);

UTX0IF = 0;}

}

void UartTX_Send_Data(unsigned char Data,int len) //串口发送函数

{int j;

for(j=0;j

{U0DBUF = Data;

while(UTX0IF == 0);

UTX0IF = 0;}

}

#pragma vector=URX0_VECTOR //uart0中断函数

__interrupt void uart0(void){

URX0IF = 0; //清中断标志

P0_0=~P0_0;

uart_buffer = U0DBUF;

//UartTX_Send_String("welcome",10);

UartTX_Send_Data(uart_buffer,1);}

void main( void )

{unsigned char buf[8];

uint16 temp;

P0DIR |= 0x01; //设置P0.0为输出方式；P0.4和P0.5为输入方式

P2DIR |= 0x01; //设置P2.0为输出方式

P0_0 = 1;

P2_0 = 1; //熄灭LED

CLKCONCMD &= ~0x40; //选择32M晶振

while(!(SLEEPSTA & 0x40)); //等待XSOC稳定

CLKCONCMD = 0xb8; //TICHSPD 128分频，CLKSPD 不分频

SLEEPCMD |= 0x04; //关闭不用的RC 振荡器

PERCFG = 0x00; //位置1 P0 口

P0SEL = 0x3c; //P0 用作串口

U0CSR |= 0x80; //UART 方式

U0GCR |= 10; //baud_e = 10;

U0BAUD |= 216; //波特率设为57600

UTX0IF = 1;

U0CSR |= 0X40; //允许接收

IEN0 |= 0x84; //开总中断，接收中断

Sensor_PIN_INT();

UartTX_Send_String("Testing...\r\n",12);

while(1){

P2_0=~P2_0;

temp = ReadAdcValue(7,3,0x2);//P0.7采集气象或血压值，12bit,AVDD5作为参考

temp = (temp>>4);

buf[0] = (uint8)(temp&0xff);

buf[1] = (buf[0]>>4)&0xf;

buf[2] = buf[0]&0xf;

if(buf[1] > 0x9)

buf[1] = buf[1] - 0XA + 'A';

else

buf[1] = buf[1] + '0';

if(buf[2] > 0x9)

buf[2] = buf[2] - 0XA + 'A';

else

buf[2] = buf[2] + '0';

UartTX_Send_String("Pressure = ",11);

UartTX_Send_String(&buf[1],1);

UartTX_Send_String(&buf[2],1);

UartTX_Send_String(" ",4);

UartTX_Send_String("\r\n",2);

delay();}

} // end of main()

现象

不断自动显示压力，若手按在压力传感器上，压力从0变为非0，放开又变回0

7.7

程序

#include "ioCC2530.h"

#define uint8 unsigned char

#define uint16 unsigned int

#define uint32 unsigned long

extern void Sensor_PIN_INT(void);

extern uint16 ReadAdcValue(uint8 ChannelNum,uint8 DecimationRate,uint8 RefVoltage); char uart_buffer;

void delay(void)

{unsigned int i;

unsigned char j;

for(i=0;i<1500;i++)

{for(j=0;j<200;j++)

{asm("NOP");

asm("NOP");

asm("NOP");}

}

}

void UartTX_Send_String(unsigned char *Data,int len) //串口发送函数{int j;

for(j=0;j

{U0DBUF = *Data++;

while(UTX0IF == 0);

UTX0IF = 0;}

}

void UartTX_Send_Data(unsigned char Data,int len) //串口发送函数{int j;

for(j=0;j

{U0DBUF = Data;

while(UTX0IF == 0);

UTX0IF = 0;}

}

#pragma vector=URX0_VECTOR //uart0中断函数

__interrupt void uart0(void){

URX0IF = 0; //清中断标志

P0_0=~P0_0;

uart_buffer = U0DBUF;

//UartTX_Send_String("welcome",10);

UartTX_Send_Data(uart_buffer,1);}

void main( void )

{uint16 AdValue;

unsigned char buf[12];

Sensor_PIN_INT();

UartTX_Send_String("Testing...\r\n",12);

while(1){

AdValue = ReadAdcValue(0x4,3,2);

AdValue = AdValue;

buf[0] = AdValue;

AdValue = ReadAdcValue(0x5,3,2);

AdValue = AdValue>>6;

buf[3] = (uint8)AdValue;

AdValue = ReadAdcValue(0x6,3,2);

AdValue = AdValue>>6;

buf[6] = (uint8)AdValue;

//X轴加速度处理

if(buf[0] == 0x53){

buf[0] = 0;

buf[9] = 0;}

else if(buf[0] > 0x53){

buf[0] = buf[0] - 0x53;

buf[9] = 1;}

else{ b uf[0] = 0x53 - buf[0];

buf[9] = 2;}

buf[1] = (buf[0] >> 4)&0xf;

if(buf[1] > 0x9)

buf[1] = buf[1] - 0XA + 'A';

else

buf[1] = buf[1] + '0';

buf[2] = buf[0]&0xf;

if(buf[2] > 0x9)

buf[2] = buf[2] -0XA + 'A';

else

buf[2] = buf[2] + '0';

//Y轴加速度处理if(buf[3] == 0x45){

buf[3] = 0;

buf[10] = 0;}

else if(buf[3] > 0x45){

buf[3] = buf[3] - 0x45;

buf[10] = 1;}

else{buf[3] = 0x45 - buf[3];

buf[10] = 2;}

buf[4] = (buf[3] >> 4)&0xf;

if(buf[4] > 0x9)

buf[4] = buf[4] - 0XA + 'A';

else

buf[4] = buf[4] + '0';

buf[5] = buf[3]&0xf;

if(buf[5] > 0x9)

buf[5] = buf[5] -0XA + 'A';

else

buf[5] = buf[5] + '0';

//Z轴加速度处理

if(buf[6] == 0x49){

buf[6] = 0;

buf[11] = 0;}

else if(buf[6] > 0x49){

buf[6] = buf[6] - 0x49;

buf[11] = 1;}

else{buf[6] = 0x49 - buf[6];

buf[11] = 2;}

buf[7] = (buf[6] >> 4)&0xf;

if(buf[7] > 0x9)

buf[7] = buf[7] - 0XA + 'A';

else

buf[7] = buf[7] + '0';

buf[8] = buf[6]&0xf;

if(buf[8] > 0x9)

buf[8] = buf[8] -0XA + 'A';

else

buf[8] = buf[8] + '0';

UartTX_Send_String("X Accelerometer = ",18);

if(buf[9] == 0)

UartTX_Send_String(" ",1);

else if(buf[9] == 1)

UartTX_Send_String("+",1);

else if(buf[9] == 2)

UartTX_Send_String("-",1);

UartTX_Send_String(&buf[1],2);

UartTX_Send_String(" ",2);

UartTX_Send_String("Y Accelerometer = ",18);

if(buf[10] == 0)

UartTX_Send_String(" ",1);

else if(buf[10] == 1)

UartTX_Send_String("+",1);

else if(buf[10] == 2)

UartTX_Send_String("-",1);

UartTX_Send_String(&buf[4],2);

UartTX_Send_String(" ",2);

UartTX_Send_String("Z Accelerometer = ",18);

if(buf[11] == 0)

UartTX_Send_String(" ",1);

else if(buf[11] == 1)

UartTX_Send_String("+",1);

else if(buf[11] == 2)

UartTX_Send_String("-",1);

UartTX_Send_String(&buf[7],2);

UartTX_Send_String("\r\n",2);

delay();}

} // end of main()

现象

不断显示X 、Y 、Z 轴三个方向的加速度