BMP280是博世最新推出的数字气压传感器，具有卓越的性能和低廉的价格，相对精度为±0.12 hPa（相当于±1米），传感器功耗仅有2.7μA，包括压力和温度测量功能。
气压传感器支持SPI和IIC通信接口，相比上一代的BMP180，精度已有相当大的提升，非常适合应用于低成本的多旋翼飞行器飞行控制器上，价格仅有目前流行的MS5611的四分之一。
（1）读取BMP280的id，其值等于0x58。
（2）把补偿寄存器的值都读出来。
（3）对BMP280进行reset。
（4）对BMP280的数据采集精度，模式。。。等进行配置。
（5）给点延时，等待数据采集完毕放入寄存器中。
（6）读取寄存器中的采集数据。
1.BMP280.C
2.BMP280.H
#include "bmp280.h"
//初始化IIC
void BMP_IIC_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
//RCC->APB2ENR|=1<<4;//先使能外设IO PORTC时钟
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC, ENABLE );
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_12|GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP ; //推挽输出
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOC,&GPIO_InitStructure);
IIC_SCL=1;
IIC_SDA=1;
}
//产生IIC起始信号
void BMP_IIC_Start(void)
{
SDA_OUT(); //sda线输出
IIC_SDA=1;
IIC_SCL=1;
delay_us(4);
IIC_SDA=0; //START:when CLK is high,DATA change form high to low
delay_us(4);
IIC_SCL=0; //钳住I2C总线，准备发送或接收数据
}
//产生IIC停止信号
void BMP_IIC_Stop(void)
{
SDA_OUT(); //sda线输出
IIC_SCL=0;
IIC_SDA=0; //STOP:when CLK is high DATA change form low to high
delay_us(4);
IIC_SCL=1;
IIC_SDA=1; //发送I2C总线结束信号
delay_us(4);
}
//等待应答信号到来
//返回值：1，接收应答失败
// 0，接收应答成功
u8 BMP_IIC_Wait_Ack(void)
{
u8 ucErrTime=0;
SDA_IN(); //SDA设置为输入
IIC_SDA=1;delay_us(1);
IIC_SCL=1;delay_us(1);
while(READ_SDA)
{
ucErrTime++;
if(ucErrTime>250)
{
BMP_IIC_Stop();
return 1;
}
}
IIC_SCL=0; //时钟输出0
return 0;
}
//产生ACK应答
void BMP_IIC_Ack(void)
{
IIC_SCL=0;
SDA_OUT();
IIC_SDA=0;
delay_us(2);
IIC_SCL=1;
delay_us(2);
IIC_SCL=0;
}
//不产生ACK应答
void BMP_IIC_NAck(void)
{
IIC_SCL=0;
SDA_OUT();
IIC_SDA=1;
delay_us(2);
IIC_SCL=1;
delay_us(2);
IIC_SCL=0;
}
//IIC发送一个字节
//返回从机有无应答
//1，有应答
//0，无应答
void BMP_IIC_Send_Byte(u8 txd)
{
u8 t;
SDA_OUT();
IIC_SCL=0; //拉低时钟开始数据传输
for(t=0;t<8;t++)
{
IIC_SDA=(txd&0x80)>>7;
txd<<=1;
delay_us(2); //对TEA5767这三个延时都是必须的
IIC_SCL=1;
delay_us(2);
IIC_SCL=0;
delay_us(2);
}
}
//读1个字节，ack=1时，发送ACK，ack=0，发送nACK
u8 BMP_IIC_Read_Byte(unsigned char ack)
{
unsigned char i,receive=0;
SDA_IN(); //SDA设置为输入
for(i=0;i<8;i++ )
{
IIC_SCL=0;
delay_us(2);
IIC_SCL=1;
receive<<=1;
if(READ_SDA)receive++;
delay_us(1);
}
if (!ack)
BMP_IIC_NAck(); //发送nACK
else
BMP_IIC_Ack(); //发送ACK
return receive;
}
//从指定地址读出一个数据
//ReadAddr:开始读数的地址
//返回值 :读到的数据
u8 BMP_iicDevReadByte(u8 devaddr,u8 addr)
{
u8 temp=0;
BMP_IIC_Start();
BMP_IIC_Send_Byte(devaddr); //发送器件写命令
BMP_IIC_Wait_Ack();
BMP_IIC_Send_Byte(addr); //发送低地址
BMP_IIC_Wait_Ack();
BMP_IIC_Start();
BMP_IIC_Send_Byte(devaddr|1); //发送器件读命令
BMP_IIC_Wait_Ack();
temp=BMP_IIC_Read_Byte(0);
BMP_IIC_Stop(); //产生一个停止条件
return temp;
}
//连续读多个字节
//addr:起始地址
//rbuf:读数据缓存
//len:数据长度
void BMP_iicDevRead(u8 devaddr,u8 addr,u8 len,u8 *rbuf)
{
int i=0;
BMP_IIC_Start();
BMP_IIC_Send_Byte(devaddr);
BMP_IIC_Wait_Ack();
BMP_IIC_Send_Byte(addr); //地址自增
BMP_IIC_Wait_Ack();
BMP_IIC_Start();
BMP_IIC_Send_Byte(devaddr|1);
BMP_IIC_Wait_Ack();
for(i=0; i<len; i++)
{
if(i==len-1)
{
rbuf[i]=BMP_IIC_Read_Byte(0); //最后一个字节不应答
}
else
rbuf[i]=BMP_IIC_Read_Byte(1);
}
BMP_IIC_Stop( );
}
//从指定地址写入一个数据
//WriteAddr :写入数据的目的地址
//DataToWrite:要写入的数据
void BMP_iicDevWriteByte(u8 devaddr,u8 addr,u8 data)
{
BMP_IIC_Start();
BMP_IIC_Send_Byte(devaddr); //发送器件写命令
BMP_IIC_Wait_Ack();
BMP_IIC_Send_Byte(addr); //发送低地址
BMP_IIC_Wait_Ack();
BMP_IIC_Send_Byte(data); //发送字节
BMP_IIC_Wait_Ack();
BMP_IIC_Stop(); //产生一个停止条件
}
//连续写多个字节
//addr:起始地址
//wbuf:写数据缓存
//len:数据的长度
void BMP_iicDevWrite(u8 devaddr,u8 addr,u8 len,u8 *wbuf)
{
int i=0;
BMP_IIC_Start();
BMP_IIC_Send_Byte(devaddr);
BMP_IIC_Wait_Ack();
BMP_IIC_Send_Byte(addr); //地址自增
BMP_IIC_Wait_Ack();
for(i=0; i<len; i++)
{
BMP_IIC_Send_Byte(wbuf[i]);
BMP_IIC_Wait_Ack();
}
BMP_IIC_Stop( );
}
/*bmp280 气压和温度过采样 工作模式*/
#define BMP280_PRESSURE_OSR (BMP280_OVERSAMP_8X)
#define BMP280_TEMPERATURE_OSR (BMP280_OVERSAMP_16X)
#define BMP280_MODE (BMP280_PRESSURE_OSR<<2|BMP280_TEMPERATURE_OSR<<5|BMP280_NORMAL_MODE)
typedef struct
{
u16 dig_T1; /* calibration T1 data */
s16 dig_T2; /* calibration T2 data */
s16 dig_T3; /* calibration T3 data */
u16 dig_P1; /* calibration P1 data */
s16 dig_P2; /* calibration P2 data */
s16 dig_P3; /* calibration P3 data */
s16 dig_P4; /* calibration P4 data */
s16 dig_P5; /* calibration P5 data */
s16 dig_P6; /* calibration P6 data */
s16 dig_P7; /* calibration P7 data */
s16 dig_P8; /* calibration P8 data */
s16 dig_P9; /* calibration P9 data */
s32 t_fine; /* calibration t_fine data */
} bmp280Calib;
bmp280Calib bmp280Cal;
static u8 bmp280ID=0;
static bool isInit=false;
static s32 bmp280RawPressure=0;
static s32 bmp280RawTemperature=0;
static void bmp280GetPressure(void);
static void presssureFilter(float* in,float* out);
static float bmp280PressureToAltitude(float* pressure/*, float* groundPressure, float* groundTemp*/);
bool bmp280Init(void)
{
if (isInit)
return true;
BMP_IIC_Init(); /*初始化I2C*/
delay_ms(20);
bmp280ID=BMP_iicDevReadByte(BMP280_ADDR,BMP280_CHIP_ID); /* 读取bmp280 ID*/
if(bmp280ID==BMP280_DEFAULT_CHIP_ID)
printf("BMP280 ID IS: 0x%X\n",bmp280ID);
else
return false;
/* 读取校准数据 */
BMP_iicDevRead(BMP280_ADDR,BMP280_TEMPERATURE_CALIB_DIG_T1_LSB_REG,24,(u8 *)&bmp280Cal);
BMP_iicDevWriteByte(BMP280_ADDR,BMP280_CTRL_MEAS_REG,BMP280_MODE);
BMP_iicDevWriteByte(BMP280_ADDR,BMP280_CONFIG_REG,5<<2); /*配置IIR滤波*/
// printf("BMP280 Calibrate Registor Are: \r\n");
// for(i=0;i<24;i++)
// printf("Registor %2d: 0x%X\n",i,p[i]);
isInit=true;
return true;
}
static void bmp280GetPressure(void)
{
u8 data[BMP280_DATA_FRAME_SIZE];
// read data from sensor
BMP_iicDevRead(BMP280_ADDR,BMP280_PRESSURE_MSB_REG,BMP280_DATA_FRAME_SIZE,data);
bmp280RawPressure=(s32)((((uint32_t)(data[0]))<<12)|(((uint32_t)(data[1]))<<4)|((uint32_t)data[2]>>4));
bmp280RawTemperature=(s32)((((uint32_t)(data[3]))<<12)|(((uint32_t)(data[4]))<<4)|((uint32_t)data[5]>>4));
}
// Returns temperature in DegC, resolution is 0.01 DegC. Output value of "5123" equals 51.23 DegC
// t_fine carries fine temperature as global value
static s32 bmp280CompensateT(s32 adcT)
{
s32 var1,var2,T;
var1=((((adcT>>3)-((s32)bmp280Cal.dig_T1<<1)))*((s32)bmp280Cal.dig_T2))>>11;
var2=(((((adcT>>4)-((s32)bmp280Cal.dig_T1))*((adcT>>4)-((s32)bmp280Cal.dig_T1)))>>12)*((s32)bmp280Cal.dig_T3))>>14;
bmp280Cal.t_fine=var1+var2;
T=(bmp280Cal.t_fine*5+128)>>8;
return T;
}
// Returns pressure in Pa as unsigned 32 bit integer in Q24.8 format (24 integer bits and 8 fractional bits).
// Output value of "24674867" represents 24674867/256 = 96386.2 Pa = 963.862 hPa
static uint32_t bmp280CompensateP(s32 adcP)
{
int64_t var1,var2,p;
var1=((int64_t)bmp280Cal.t_fine)-128000;
var2=var1*var1*(int64_t)bmp280Cal.dig_P6;
var2=var2+((var1*(int64_t)bmp280Cal.dig_P5)<<17);
var2=var2+(((int64_t)bmp280Cal.dig_P4)<<35);
var1=((var1*var1*(int64_t)bmp280Cal.dig_P3)>>8)+((var1*(int64_t)bmp280Cal.dig_P2)<<12);
var1=(((((int64_t)1)<<47)+var1))*((int64_t)bmp280Cal.dig_P1)>>33;
if (var1==0)
return 0;
p=1048576-adcP;
p=(((p<<31)-var2)*3125)/var1;
var1=(((int64_t)bmp280Cal.dig_P9)*(p>>13)*(p>>13))>>25;
var2=(((int64_t)bmp280Cal.dig_P8)*p)>>19;
p=((p+var1+var2)>>8)+(((int64_t)bmp280Cal.dig_P7)<<4);
return(uint32_t)p;
}
#define FILTER_NUM 5
#define FILTER_A 0.1f
/*限幅平均滤波法*/
static void presssureFilter(float* in,float* out)
{
static u8 i=0;
static float filter_buf[FILTER_NUM]={0.0};
double filter_sum=0.0;
u8 cnt=0;
float deta;
if(filter_buf[i]==0.0f)
{
filter_buf[i]=*in;
*out=*in;
if(++i>=FILTER_NUM)
i=0;
}
else
{
if(i)
deta=*in-filter_buf[i-1];
else
deta=*in-filter_buf[FILTER_NUM-1];
if(fabs(deta)<FILTER_A)
{
filter_buf[i]=*in;
if(++i>=FILTER_NUM)
i=0;
}
for(cnt=0;cnt<FILTER_NUM;cnt++)
{
filter_sum+=filter_buf[cnt];
}
*out=filter_sum /FILTER_NUM;
}
}
void bmp280GetData(float* pressure,float* temperature,float* asl)
{
static float t;
static float p;
bmp280GetPressure();
t=bmp280CompensateT(bmp280RawTemperature)/100.0;
p=bmp280CompensateP(bmp280RawPressure)/25600.0;
presssureFilter(&p,pressure);
*temperature=(float)t; /*单位度*/
// *pressure=(float)p ; /*单位hPa*/
*asl=bmp280PressureToAltitude(pressure); /*转换成海拔*/
}
#define CONST_PF 0.1902630958 //(1/5.25588f) Pressure factor
#define FIX_TEMP 25 // Fixed Temperature. ASL is a function of pressure and temperature, but as the temperature changes so much (blow a little towards the flie and watch it drop 5 degrees) it corrupts the ASL estimates.
// TLDR: Adjusting for temp changes does more harm than good.
/*
* Converts pressure to altitude above sea level (ASL) in meters
*/
static float bmp280PressureToAltitude(float* pressure/*, float* groundPressure, float* groundTemp*/)
{
if (*pressure>0)
{
return((pow((1015.7f/ *pressure),CONST_PF)-1.0f)*(FIX_TEMP+273.15f))/0.0065f;
}
else
{
return 0;
}
}
#ifndef __BMP280_H
#define __BMP280_H
#include "sys.h"
#include "stdbool.h"
#include <math.h>
#include "delay.h"
#include "usart.h"
#define BMP280_ADDR (0xEC)
#define BMP280_DEFAULT_CHIP_ID (0x58)
#define BMP280_CHIP_ID (0xD0) /* Chip ID Register */
#define BMP280_RST_REG (0xE0) /* Softreset Register */
#define BMP280_STAT_REG (0xF3) /* Status Register */
#define BMP280_CTRL_MEAS_REG (0xF4) /* Ctrl Measure Register */
#define BMP280_CONFIG_REG (0xF5) /* Configuration Register */
#define BMP280_PRESSURE_MSB_REG (0xF7) /* Pressure MSB Register */
#define BMP280_PRESSURE_LSB_REG (0xF8) /* Pressure LSB Register */
#define BMP280_PRESSURE_XLSB_REG (0xF9) /* Pressure XLSB Register */
#define BMP280_TEMPERATURE_MSB_REG (0xFA) /* Temperature MSB Reg */
#define BMP280_TEMPERATURE_LSB_REG (0xFB) /* Temperature LSB Reg */
#define BMP280_TEMPERATURE_XLSB_REG (0xFC) /* Temperature XLSB Reg */
#define BMP280_SLEEP_MODE (0x00)
#define BMP280_FORCED_MODE (0x01)
#define BMP280_NORMAL_MODE (0x03)
#define BMP280_TEMPERATURE_CALIB_DIG_T1_LSB_REG (0x88)
#define BMP280_PRESSURE_TEMPERATURE_CALIB_DATA_LENGTH (24)
#define BMP280_DATA_FRAME_SIZE (6)
#define BMP280_OVERSAMP_SKIPPED (0x00)
#define BMP280_OVERSAMP_1X (0x01)
#define BMP280_OVERSAMP_2X (0x02)
#define BMP280_OVERSAMP_4X (0x03)
#define BMP280_OVERSAMP_8X (0x04)
#define BMP280_OVERSAMP_16X (0x05)
bool bmp280Init(void);
void bmp280GetData(float* pressure, float* temperature, float* asl);
//IO方向设置
#define SDA_IN() {GPIOC->CRH&=0XFFFF0FFF;GPIOC->CRH|=8<<12;}
#define SDA_OUT() {GPIOC->CRH&=0XFFFF0FFF;GPIOC->CRH|=3<<12;}
//IO操作函数
#define IIC_SCL PCout(12) //SCL
#define IIC_SDA PCout(11) //SDA
#define READ_SDA PCin(11) //输入SDA
//IIC所有操作函数
void BMP_IIC_Init(void); //初始化IIC的IO口
void BMP_IIC_Start(void); //发送IIC开始信号
void BMP_IIC_Stop(void); //发送IIC停止信号
void BMP_IIC_Send_Byte(u8 txd); //IIC发送一个字节
u8 BMP_IIC_Read_Byte(unsigned char ack); //IIC读取一个字节
u8 BMP_IIC_Wait_Ack(void); //IIC等待ACK信号
void BMP_IIC_Ack(void); //IIC发送ACK信号
void BMP_IIC_NAck(void); //IIC不发送ACK信号
void BMP_IIC_Write_One_Byte(u8 daddr,u8 addr,u8 data);
u8 BMP_IIC_Read_One_Byte(u8 daddr,u8 addr);
u8 BMP_iicDevReadByte(u8 devaddr,u8 addr); /*读一字节*/
void BMP_iicDevWriteByte(u8 devaddr,u8 addr,u8 data); /*写一字节*/
void BMP_iicDevRead(u8 devaddr,u8 addr,u8 len,u8 *rbuf); /*连续读取多个字节*/
void BMP_iicDevWrite(u8 devaddr,u8 addr,u8 len,u8 *wbuf); /*连续写入多个字节*/
#endif
/**
************************************* Copyright ******************************
*
* FileName : main.c
* Version : v1.0
* Author : dele
* Date : 2022-01-06
******************************************************************************
*/
//--------------------------------------------------------------------------------------------------
// 包含的系统外设头文件 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
#include "sys.h"
#include "delay.h"
#include "USART.H"
#include "timer.h"
#include "adc.h"
#include <math.h>
#include "wdg.h"
//--------------------------------------------------------------------------------------------------
// 包含的外部驱动头文件 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
#include "led.h"
#include "LCD.H"
#include "QDTFT_demo.h"
#include "Picture.h"
#include "key.h"
#include "oled.h"
#include "beep.h"
#include "dht11.h"
#include "bh1750.h"
#include "syn6288.h"
#include "AHT10.H"
#include "bmp280.h"
//--------------------------------------------------------------------------------------------------
// 网络协议驱动头文件 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
#include "gizwits_product.h" //机智云网络协议驱动
//--------------------------------------------------------------------------------------------------
// 宏自定义声明 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
// 定义引用变量 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
//unsigned char num;
/* u8 unsigned char u16 unsigned short u32 unsigned int u64 unsigned long*/
unsigned short MQ135_ADC,MQ2_ADC,MQ4_ADC,MQ7_ADC; //ADC采集值
float temp1,temp2,temp3,temp4,MQ135_quality,MQ2_quality,MQ4_quality,MQ7_quality,Light; //实际转换值
extern u8 DHT11_Temp,DHT11_Hum; //温湿度
float aht_temp,aht_hum;
unsigned int time1 =0;
unsigned int timeCount1=0;
unsigned int timeflag1 =0;
unsigned int time2 =0;
unsigned int timeCount2=0;
unsigned int timeflag2 =0;
unsigned int time3 =0;
unsigned int timeCount3=0;
unsigned int timeflag3 =0;
unsigned int time4 =0;
unsigned int timeCount4=0;
unsigned int timeflag4 =0;
unsigned int Basictime =0;
unsigned int BasictimeCount=0;
unsigned int Basictimeflag =0;
unsigned char IC_Card[4]={0};
//--------------------------------------------------------------------------------------------------
// 硬件端口定义 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
// 引用函数声明 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//--------------------------------------------------------------------------------------------------
void LED_TEST(void);
void Hareware_Iint(void);
void TFT_ShowTEST(void);
void Usart_Test(void);
void oled_test(void);
void Timer_Configure(void);
void GeneralTimer_Test(void);
void Basic_Timer_Test(void);
void Basic_GeneralTimer_Test(void);
void USart_Configure(void);
void DHT11_DisPlay(void); //温湿度显示函数
void Gas_sensorGet_Data(void);//获取传感器数据
void IWdg_Test(void);
void LED_PWM_Test(void);
void BH1750_Test(void);
void Gizwits_Init(void);
void RFID_Test(void);
void PWM_Test(void);
//==================================================================================================
// 实现功能: 硬件初始化配置
// 函数说明: Hareware_Iint
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Hareware_Iint(void)
{
delay_init(); // 延迟函数配置
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置中断优先级分组为组2：2位抢占优先级，2位响应优先级
// Timer_Configure();//定时器配置
USART1_Configuration(115200); //串口1配置
LED_Init(); //板载LED配置
KEY_Init(); //板载独立按键测试
DHT11_Init(); //DHT11温湿度传感器
AHT_I2C_UserConfig();
OLED_Init(); // IIC 0.96 oled
Lcd_Init(); //ST7735 LCD配置
LCD_LED_SET; //设置背光
Lcd_Clear(WHITE); //清屏
BEEP_Init(); //蜂鸣器配置
BH1750_Init(); //光照传感器配置
Adc_Init(); //ADC配置
BMP_IIC_Init();
bmp280Init();
Gizwits_Init(); //机智云配置
#if 0
/*独立看门狗配置*/
IWDG_Init(4,625); //与分频数为64,重载值为625,溢出时间为1s
/*窗口看门狗配置*/
WWDG_Init(0X7F,0X5F,WWDG_Prescaler_8);//计数器值为7f,窗口寄存器为5f,分频数为8
#endif
// TIM3_PWM_Init(899,0); //不分频。PWM频率=72000000/900=80Khz
}
//==================================================================================================
// 实现功能: LED测试函数
// 函数说明: PB5 LED0 PE5 LED1
// 函数备注: 板载LED 正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void LED_TEST(void)
{
LED0=0;
delay_ms(500);
LED0=1;
delay_ms(500);
LED1=0;
delay_ms(500);
LED1=1;
delay_ms(500);
}
//==================================================================================================
// 实现功能: TFT_ShowTEST测试函数
// 函数说明:
// 函数备注: ST7735 TFTLCD 测试正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void TFT_ShowTEST(void)
{
// Redraw_Mainmenu();
Num_Test();
// Font_Test();
Color_Test();
//TFT_ShowImage(gImage_qq);
Lcd_Clear(WHITE); //清屏
TFT_ShowString_16x16(0,16,"stm32 vscode",Red,White);
delay_ms(1000);
TFT_ShowNumber_SignedInteger_16x16(16,32,1234,5,Red,White);
delay_ms(1000);
TFT_ShowNumber_Float_16x16(0,48,123.56,4,3,Red,White);
delay_ms(1000);
TFT_ShowString_16x16(16,60,"By 2021-01-29",Red,White);
delay_ms(1000);
TFT_ShowString_16x16(0,90,"keil5 vscode",Red,White);
delay_ms(1000);
}
//==================================================================================================
// 实现功能: 串口配置配置
// 函数说明: TIM2,3,4,5
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void USart_Configure(void)
{
// UART4_Configuration(9600);//串口4配置
// USART1_Configuration(115200);//串口1配置
}
//==================================================================================================
// 实现功能: Usart_Test测试函数
// 函数说明: 串口配置测试函数 STM32F103ZET6 5个串口
// 函数备注: USART1 USART2 USART3 UART4 UART5
// TX端口 PA9 PA2 PB10 PC10 PC12
// RX端口 PA10 PA3 PB11 PC11 PD2
// 串口1~5 测试正常 打印效果正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Usart_Test(void)
{
#if 0
UART_SendString(USART1,"usart1 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,0,"usart1 test",Red,White);
#endif
#if 0
UART_SendString(USART2,"usart2 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,16,"usart2 test",Red,White);
#endif
#if 0
UART_SendString(USART3,"usart3 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,32,"usart3 test",Red,White);
#endif
#if 0
UART_SendString(UART4,"uart4 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,48,"uart4 test",Red,White);
#endif
#if 0
UART_SendString(UART5,"uart5 test \r\n");
delay_ms(500);
TFT_ShowString_16x16(0,54,"uart5 test",Red,White);
#endif
#if 1
UART_SendNumber_SignedInteger(USART1,123,4);
UART_SendLine(USART1);
delay_ms(500);
UART_SendNumber_UnsignedInteger(USART1,123,4);
UART_SendLine(USART1);
delay_ms(500);
UART_SendNumber_Float(USART1,123.56,4,3);
UART_SendLine(USART1);
delay_ms(500);
UART_SendNumber_Binary(USART1,9,4);
UART_SendLine(USART1);
delay_ms(500);
#endif
}
//==================================================================================================
// 实现功能: oled_test测试函数
// 函数说明: 采用软件IIC 进行配置 SDA PB9 SCL in
// 函数备注: 测试正常
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void oled_test(void)
{
OLED_ShowChar_08x16(0,0,'@');
OLED_ShowChar_08x16(16,0,'&');
OLED_ShowNumber_SignedInteger_06x08(0,2,1234,5);
OLED_ShowNumber_UnsignedInteger_06x08(48,2,1234,5);
OLED_ShowNumber_Float_06x08(0,4,123.46,3,3);
OLED_ShowString_06x08(32,0,"oled");
OLED_ShowCHinese(0,6,0);
OLED_ShowCHinese(16,6,1);
OLED_ShowCHinese(32,6,2);
OLED_ShowCHinese(48,6,3);
OLED_ShowCHinese(64,6,4);
// OLED_Clear();
}
//================================================================================================
// 实现功能: Key_Test 按键测试函数
// 函数说明: KEY0 PE4 KEY1 PE3 KEY_WK_UP PA0
// 函数备注: KEY0_PRES 1 KEY1_PRES 1 WKUP_PRES 3
//----------------------------------------- -------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//=================================================================================================
void Key_Test(void)
{
unsigned char key_value=0;
TFT_ShowString_16x16(0,0,"KEY:",Red,White);
key_value=KEY_Scan(0);
if(key_value==3)
{
TFT_ShowNumber_SignedInteger_16x16(60,0,key_value,2,Red,White);
//USART_SendString(USART1,"key_value:3 \r\n");
}
if(key_value==2)
{
TFT_ShowNumber_SignedInteger_16x16(60,0,key_value,2,Red,White);
//USART_SendString(USART1,"key_value:2 \r\n");
}
if(key_value==1)
{
TFT_ShowNumber_SignedInteger_16x16(60,0,key_value,2,Red,White);
//USART_SendString(USART1,"key_value:1 \r\n");
}
}
//==================================================================================================
// 实现功能: 定时器配置 1s测试
// 函数说明: TIM2,3,4,5
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Timer_Configure(void)
{
/*定时器配置*/
BASIC_TIM_Init();
TIM5_Init(9999,7199);
// TIM3_Int_Init(9999,7199);
TIM2_Int_Init(9999,7199);
TIM4_Int_Init(9999,7199);
}
//==================================================================================================
// 实现功能: 通用定时器定时器测试
// 函数说明: TIM2,3,4,5
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void GeneralTimer_Test(void)
{
if ( timeflag1 == 1 ) // TIM5
{
timeflag1 = 0;
timeCount1++;
LED1=!LED1;
if (timeCount1 == 60)
{
timeCount1=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,32,timeCount1,2,Blue1,White);
}
if ( timeflag2 == 1 ) //TIM3
{
timeflag2 = 0;
timeCount2++;
if (timeCount2 == 60)
{
timeCount2=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,60,timeCount2,2,Blue1,White);
}
if ( timeflag3 == 1 ) //TIM2
{
timeflag3 = 0;
timeCount3++;
if (timeCount3 == 60)
{
timeCount3=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,90,timeCount3,2,Green,White);
}
if ( timeflag4 == 1 ) //TIM4
{
timeflag4 = 0;
timeCount4++;
if (timeCount4 == 60)
{
timeCount4=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,120,timeCount4,2,Green,White);
}
}
//==================================================================================================
// 实现功能: 基本定时器定时器测试
// 函数说明: TIM6,7
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Basic_Timer_Test(void)
{
if ( Basictime == 1000 ) /* 1000 * 1 ms = 1s 时间到 */
{
Basictime = 0;
BasictimeCount++;
if (BasictimeCount == 60)
{
BasictimeCount=0;
}
TFT_ShowNumber_SignedInteger_16x16(90,140,BasictimeCount,2,Black,White);
}
}
//==================================================================================================
// 实现功能: 定时器定时 1s 测试
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Basic_GeneralTimer_Test(void)
{
GeneralTimer_Test();//通用定时器定时器测试
Basic_Timer_Test();//基本定时器定时器测试
}
#if 0
TFT_ShowString_16x16(0,0,"stm32 timertest",Magenta,White);
TFT_ShowString_16x16(0,32,"timeCount1 ",Blue1,White);
TFT_ShowString_16x16(0,60,"timeCount2 ",Red,White);
TFT_ShowString_16x16(0,90,"timeCount3 ",Red,White);
TFT_ShowString_16x16(0,120,"timeCount4",Red,White);
TFT_ShowString_16x16(0,140,"Basictime",Magenta,White);
#endif
//==================================================================================================
// 实现功能: DHT11_DisPlay 显示温湿度传感器数值
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void DHT11_DisPlay(void)
{
//循环外 硬件初始化之后
TFT_ShowString_16x16(0,0,"TEMP:",Magenta,White);
TFT_ShowString_16x16(0,32,"Hum: ",Blue1,White);
//循环内 循环获取温湿度值更新
DHT11_Read_Data(&DHT11_Temp,&DHT11_Hum);
TFT_ShowNumber_Float_16x16(32,0,DHT11_Temp,2,1,Red,White);
TFT_ShowNumber_Float_16x16(32,32,DHT11_Hum,2,1,Green,White);
}
//==================================================================================================
// 实现功能: Gas_sensorGet_Data 显示传感器数值
// 函数说明:
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Gas_sensorGet_Data(void)
{
#if 0
unsigned short MQ135_ADC,MQ2_ADC;
float temp1,temp2,MQ135_quality,MQ2_quality;
DHT11_Read_Data(&DHT11_Temp,&DHT11_Hum);
TFT_ShowString_16x16(0,0,"TEMP:",Magenta,White);
TFT_ShowString_16x16(0,16,"Hum: ",Blue1,White);
TFT_ShowString_16x16(0,32,"MQ-2:",Magenta,White);
TFT_ShowString_16x16(0,48,"MQ-135:",Blue1,White);
MQ135_ADC=Get_Adc_Average(ADC_Channel_11,10);
temp1=(float)MQ135_ADC*(3.3/4096);
MQ135_quality=pow((11.5428 * 35.904 * temp1 )/(25.5 - 5.1 * temp1),1.0/0.6549);
MQ135_ADC=temp1;
temp1-=MQ135_ADC;
MQ2_ADC = Get_Adc_Average(ADC_Channel_13,10);
temp2=(float)MQ2_ADC*(3.3/4096);
MQ2_quality = pow((11.5428 * 35.904 * temp2 )/(25.5 - 5.1 * temp2),1.0/0.6549);
MQ2_ADC=temp2;
temp2-=MQ2_ADC;
TFT_ShowNumber_Float_16x16(40,0,DHT11_Temp,2,1,Red,White);
TFT_ShowNumber_Float_16x16(40,16,DHT11_Hum,2,1,Green,White);
TFT_ShowNumber_Float_16x16(66,32,MQ2_quality,4,1,Magenta,White);
TFT_ShowNumber_Float_16x16(66,48,MQ135_quality,4,1,Magenta,White);
#endif
}
//==================================================================================================
// 实现功能: 独立看门狗 窗口看门狗测试
// 函数说明: 窗口看门狗
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void IWdg_Test(void)
{
if(KEY_Scan(0) == WKUP_PRES )
{
IWDG_Feed();//如果WK_UP按下,则喂狗 执行相关操作复位
UART_SendString(USART1,"IWDG test \r\n");
}
}
//==================================================================================================
// 实现功能: 定时器 PWM 功能 测试
// 函数说明: 呼吸灯效果
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void LED_PWM_Test(void)
{
//相关变量 Hareware_Iint() 之前定义
unsigned short Led0PwmVal=0;
unsigned Incordecflag=1;//是否增加 减小 flag=1 增加 flag=0 减小
//相关变量 while(1) 循环内部使用
// delay_ms(10);
if(Incordecflag)
{
Led0PwmVal++;
}
else
{
Led0PwmVal--;
}
if(Led0PwmVal > 900)
{
Incordecflag=0;
}
if(Led0PwmVal == 0)
{
Incordecflag=1;
}
TIM_SetCompare2(TIM3,Led0PwmVal);
}
//==================================================================================================
// 实现功能: 定时器 PWM原理
// 说明:STM32F103Z系列 TIM1,TIM8 可以实现7路PWM波输出，通用定时器可以产生4路输出
// 控制PWM寄存器
// 捕获/比较模式寄存器（TIMx_CCMR1/2）CCMR1-->CH1 CH2 CCMR2-->CH3 CH4
// 捕获/比较使能寄存器（TIMx_CCER）
// 捕获/比较寄存器（TIMx_CCR1~4) 对应 4 个输通道 CH1--CH4
// STM32的重映射控制是由复用重映射和调试 IO 配置寄存器（AFIO_MAPR）控制
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void PWM_Test(void)
{
}
//==================================================================================================
// 实现功能: 机智云协议配置
// 函数说明: 进行ESP8266配网操作
// 函数备注:
//--------------------------------------------------------------------------------------------------
// | - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
//==================================================================================================
void Gizwits_Init(void)
{
TIM3_Int_Init(9,7199);//1MS系统定时
USART3_Configuration(9600);//WIFI初始化
userInit();//设备状态结构体初始化
gizwitsInit();//缓冲区初始化
}
==================================================================================================
实现功能: 主函数
函数说明:
函数备注:
--------------------------------------------------------------------------------------------------
| - | - | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
==================================================================================================
int main(void)
{
unsigned char key;
float bmp280_temp;
float bmp280_press;
float high;
unsigned short Press,Temp,High;
Hareware_Iint();//硬件初始化配置
AHT10_Write_Reset();
while(1)
{
//********************* 机智云网络协议配置****************************************//
userHandle();//用户采集
gizwitsHandle((dataPoint_t *)¤tDataPoint);//协议处理
//********************************************************************************//
//*********************ESP8266 WiFi模块配网****************************************//
key = KEY_Scan(0);
if(key==KEY1_PRES)//KEY1按键
{
printf("WIFI进入AirLink连接模式\r\n");
gizwitsSetMode(WIFI_AIRLINK_MODE);//Air-link模式接入
}
if(key==WKUP_PRES)//KEY_UP按键
{
printf("WIFI复位，请重新配置连接\r\n");
gizwitsSetMode(WIFI_RESET_MODE);//WIFI复位
}
//************************************************************************************//
//printf("aht_temp:%.1f ,aht_hum:%d \r\n",aht_temp,aht_hum);
//Demo
TFT_ShowImage(0,120,32,32,LED_IMG);//显示灯泡
TFT_ShowString_16x16(32,140,":",Magenta,White);
TFT_ShowString_16x16(40,140,LED0 == 0?"On ":"Off",Red,White);
//********************* 传感器数据 获取与显示****************************************//
// DHT11_Read_Data(&DHT11_Temp,&DHT11_Hum);
// printf("temp:%d hum:%d \r\n",DHT11_Temp,DHT11_Hum);
// DHT11_Read_Data(&DHT11_Temp,&DHT11_Hum);
AHT10_Read_Humi_Temp(&aht_hum,&aht_temp);
// TFT_ShowNumber_Float_16x16(40,0,DHT11_Temp,2,1,Red,White);
//光照强度
if (!i2c_CheckDevice(BH1750_Addr))
{
Light = LIght_Intensity();
}
TFT_ShowString_16x16(0,0,"Temp",Magenta,White);
TFT_ShowImage(36,0,32,32,IMG_Wendu);//显示温度
TFT_ShowNumber_Float_16x16(64,0,aht_temp,2,1,Red,White);
TFT_ShowString_16x16(110,0,"C",Magenta,White);
TFT_ShowString_16x16(0,32,"Hum",Magenta,White);
TFT_ShowImage(24,32,32,32,shidu);//显示湿度
TFT_ShowNumber_Float_16x16(64,32,aht_hum,2,1,Red,White);
TFT_ShowString_16x16(110,32,"%",Magenta,White);
TFT_ShowImage(0,64,32,32,Light_IMG);//显示光照强度
//TFT_ShowString_16x16(0,64,"Light:",Magenta,White);
TFT_ShowNumber_Float_16x16(32,64,Light,5,1,Red,White);
TFT_ShowString_16x16(100,64,"lx",Magenta,White);
bmp280GetData(&bmp280_press,&bmp280_temp,&high);
delay_ms(500);
Press=bmp280_press;
Temp=bmp280_temp;
High=high;
printf("bmp280_press:%d\r\n",Press);
delay_ms(100);
printf("bmp280_temp :%d\r\n\r\n",Temp);
delay_ms(100);
printf("bmp280_high :%d\r\n\r\n",High);
delay_ms(100);
// TFT_ShowString_16x16(0,100,"Press",Magenta,White);
// TFT_ShowImage(48,90,32,32,IMG_Hpa);//大气压
// TFT_ShowNumber_SignedInteger_16x16(82,90,Press,4,Red,White);
// TFT_ShowString_16x16(90,105,"hpa",Magenta,White);
//***********************************************************************************//
}
}
