线上商城的推广方案,网站优化开发,wordpress 修改目录权限设置密码,松松软文前言 手上正好有TCS3472模块#xff0c;也正好想在加深一下自己对I2C协议的理解和应用#xff0c;所以就写了这个代码库出来。参考的资料主要来源于TCS3472的数据手册#xff0c;和arduino中MH_TCS3472库的宏定义#xff0c;和函数名称#xff0c;我就没有重新命名#x…前言 手上正好有TCS3472模块也正好想在加深一下自己对I2C协议的理解和应用所以就写了这个代码库出来。参考的资料主要来源于TCS3472的数据手册和arduino中MH_TCS3472库的宏定义和函数名称我就没有重新命名方便大家理解和使用修改之类的。
环境 开发板STM32C6T6最小系统板 案例的代码环境Keil5STM32CubeMX生成的HAL库OLED(4P)TCS3472 案例接线TCS3472模块的VIN接到ST-LINK的5VOLED模块VCC接3.3V。TCS3472和OLED的SDA接到PB9SCL接到PB8。TCS3472模块的LED引脚接PA3(闪烁)或GND都行不接的话LED的会一直亮导致RGB值与透明度计算后大于256的。 注意假如TCS3472模块的VIN接到板载的3.3V的话可能会发生供电不足的情况。
特点 下述介绍参考数据手册 支持I2C协议快速模式接口数据传输速率高达 400 kbit/s TCS3472提供红、绿、蓝(RGB)和透明光©感应值的16位数字量的返回。 红、绿、蓝RGB和透明光。带红外屏蔽滤光片的感应器。可编程模拟增益和积分时间。3,800,000:1。动态范围灵敏度极高-非常适合在暗玻璃后操作。 外置可编程中断引脚启用可屏蔽中断当超出预设值时系统会发出电平式中断可编程上下限阈值带持久性过滤器从而减少MCU的开销 有着电源管理低功耗-2.5μA 休眠状态65μA等待状态可编程等待状态时间从2.4ms 至7 秒
代码 代码方面除了CubeMX生成的工程框架外还导入了OLED(4P)自制了MyI2CTCS34725库假如其它项目要用到的话注意也要导入这几个库。下面仅展示TCS34725库完整工程文件会放在文章末尾的 TCS34725.H
#ifndef __TCS34725_H__
#define __TCS34725_H__#define TCS34725_ADDRESS (0x52) // 八位地址
#define TCS34725_ADDRESS_7bit (0x29) // 七位地址#define TCS34725_COMMAND_BIT (0x80)#define TCS34725_ENABLE (0x00)
#define TCS34725_ENABLE_AIEN (0x10) /// RGBC Interrupt Enable
#define TCS34725_ENABLE_WEN (0x08) /// Wait enable - Writing 1 activates the wait timer
#define TCS34725_ENABLE_AEN (0x02) /// RGBC Enable - Writing 1 actives the ADC, 0 disables it
#define TCS34725_ENABLE_PON (0x01) /// Power on - Writing 1 activates the internal oscillator, 0 disables it
#define TCS34725_ATIME (0x01) /// Integration time
#define TCS34725_WTIME (0x03) /// Wait time (if TCS34725_ENABLE_WEN is asserted)
#define TCS34725_WTIME_2_4MS (0xFF) /// WLONG0 2.4ms WLONG1 0.029s
#define TCS34725_WTIME_204MS (0xAB) /// WLONG0 204ms WLONG1 2.45s
#define TCS34725_WTIME_614MS (0x00) /// WLONG0 614ms WLONG1 7.4s
#define TCS34725_AILTL (0x04) /// Clear channel lower interrupt threshold
#define TCS34725_AILTH (0x05)
#define TCS34725_AIHTL (0x06) /// Clear channel upper interrupt threshold
#define TCS34725_AIHTH (0x07)
#define TCS34725_PERS (0x0C) /// Persistence register - basic SW filtering mechanism for interrupts
#define TCS34725_PERS_NONE (0b0000) /// Every RGBC cycle generates an interrupt
#define TCS34725_PERS_1_CYCLE (0b0001) /// 1 clean channel value outside threshold range generates an interrupt
#define TCS34725_PERS_2_CYCLE (0b0010) /// 2 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_3_CYCLE (0b0011) /// 3 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_5_CYCLE (0b0100) /// 5 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_10_CYCLE (0b0101) /// 10 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_15_CYCLE (0b0110) /// 15 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_20_CYCLE (0b0111) /// 20 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_25_CYCLE (0b1000) /// 25 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_30_CYCLE (0b1001) /// 30 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_35_CYCLE (0b1010) /// 35 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_40_CYCLE (0b1011) /// 40 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_45_CYCLE (0b1100) /// 45 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_50_CYCLE (0b1101) /// 50 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_55_CYCLE (0b1110) /// 55 clean channel values outside threshold range generates an interrupt
#define TCS34725_PERS_60_CYCLE (0b1111) /// 60 clean channel values outside threshold range generates an interrupt
#define TCS34725_CONFIG (0x0D)
#define TCS34725_CONFIG_WLONG (0x02) /// Choose between short and long (12x) wait times via TCS34725_WTIME
#define TCS34725_CONTROL (0x0F) /// Set the gain level for the sensor
#define TCS34725_ID (0x12) /// 0x44 TCS34721/TCS34725, 0x4D TCS34723/TCS34727
#define TCS34725_STATUS (0x13)
#define TCS34725_STATUS_AINT (0x10) /// RGBC Clean channel interrupt
#define TCS34725_STATUS_AVALID (0x01) /// Indicates that the RGBC channels have completed an integration cycle
#define TCS34725_CDATAL (0x14) /// Clear channel data
#define TCS34725_CDATAH (0x15)
#define TCS34725_RDATAL (0x16) /// Red channel data
#define TCS34725_RDATAH (0x17)
#define TCS34725_GDATAL (0x18) /// Green channel data
#define TCS34725_GDATAH (0x19)
#define TCS34725_BDATAL (0x1A) /// Blue channel data
#define TCS34725_BDATAH (0x1B)typedef enum
{TCS34725_INTEGRATIONTIME_2_4MS 0xFF, /// 2.4ms - 1 cycle - Max Count: 1024 TCS34725_INTEGRATIONTIME_24MS 0xF6, /// 24ms - 10 cycles - Max Count: 10240 TCS34725_INTEGRATIONTIME_50MS 0xEB, /// 50ms - 20 cycles - Max Count: 20480 TCS34725_INTEGRATIONTIME_101MS 0xD5, /// 101ms - 42 cycles - Max Count: 43008 TCS34725_INTEGRATIONTIME_154MS 0xC0, /// 154ms - 64 cycles - Max Count: 65535 TCS34725_INTEGRATIONTIME_700MS 0x00 /// 700ms - 256 cycles - Max Count: 65535
}
tcs34725IntegrationTime_t;typedef enum
{TCS34725_GAIN_1X 0x00, /// No gain TCS34725_GAIN_4X 0x01, /// 4x gain TCS34725_GAIN_16X 0x02, /// 16x gain TCS34725_GAIN_60X 0x03 /// 60x gain
}
tcs34725Gain_t;typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned int uint32_t;/***** 底层函数 *****/
void TCS34725_WriteReg(uint8_t reg,uint8_t data);
uint8_t TCS34725_ReadReg(uint8_t reg);/***** 功能函数 *****/
void TCS34725_Init(void); // 初始化TCS34725配置
void TCS34725_enable(void); // 使能器件
void TCS34725_lock(void); // 使能TCS34725内部中断
uint8_t TCS34725_getID(void); // 获取器件ID
uint8_t TCS34725_getStatus(void); // 获取TCS34725状态
void TCS34725_setGain(tcs34725Gain_t gain); // 设置增益
void TCS34725_setIntegrationTime(tcs34725IntegrationTime_t time); // 设置时间增益
void TCS34725_getRGBC(uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *c); // 获取TCS34725的颜色反馈#endif
TCS34725.C
#include TCS34725.h
#include MyI2C.h/*** 描述:基于TCS34725 写寄存器 ID-地址-数据*/
void TCS34725_WriteReg(uint8_t reg,uint8_t data)
{MyI2C_Start(); MyI2C_SendByte(TCS34725_ADDRESS); MyI2C_ReceiveAck(); MyI2C_SendByte(TCS34725_COMMAND_BIT | reg); MyI2C_ReceiveAck(); MyI2C_SendByte(data);MyI2C_ReceiveAck();MyI2C_Stop();
}/*** 描述:基于TCS34725 读寄存器 ID-地址-数据*/
uint8_t TCS34725_ReadReg(uint8_t reg)
{uint8_t reData 0;MyI2C_Start(); MyI2C_SendByte(TCS34725_ADDRESS); MyI2C_ReceiveAck(); MyI2C_SendByte(TCS34725_COMMAND_BIT | reg); MyI2C_ReceiveAck();MyI2C_Start(); // 666MyI2C_SendByte(TCS34725_ADDRESS | 0x01); MyI2C_ReceiveAck(); reData MyI2C_ReceiveByte();MyI2C_SendAck(1);MyI2C_Stop(); return reData;
}/**
* 描述:初始化TCS34725配置
*/
void TCS34725_Init()
{TCS34725_setIntegrationTime(TCS34725_INTEGRATIONTIME_101MS);TCS34725_setGain(TCS34725_GAIN_1X);TCS34725_enable();
}/**
* 描述:TCS34725毫秒级延时
*/
void TCS34725_DelayMs(uint16_t ms)
{char i;for(i 0;i ms;i){MyI2C_DelayUs(1000);}}/**
* 描述:设置时间增益
*/
void TCS34725_setIntegrationTime(tcs34725IntegrationTime_t time)
{// 更新时序寄存器TCS34725_WriteReg(TCS34725_ATIME,time);
}/**
* 描述:设置增益
*/
void TCS34725_setGain(tcs34725Gain_t gain)
{// 设置增益TCS34725_WriteReg(TCS34725_CONTROL,gain);}/**
* 描述:使能器件
*/
void TCS34725_enable(void)
{// 开启内部振荡器--启动TCS34725_WriteReg(TCS34725_ENABLE,TCS34725_ENABLE_PON);TCS34725_DelayMs(3);// 启动ADCTCS34725_WriteReg(TCS34725_ENABLE,TCS34725_ENABLE_PON | TCS34725_ENABLE_AEN);
}/**
* 描述:读取TCS34725指定寄存器
*/
uint16_t TCS34725_readRegWord(uint8_t reg)
{uint16_t h 0x0000; // 高八位uint16_t l 0x0000; // 低八位MyI2C_Start(); // I2C开始条件MyI2C_SendByte(TCS34725_ADDRESS); // I2C发送字节MyI2C_ReceiveAck(); // I2C接收应答MyI2C_SendByte(TCS34725_COMMAND_BIT | reg | 0x20); // I2C发送字节MyI2C_ReceiveAck(); // I2C接收应答MyI2C_Start(); // 666MyI2C_SendByte(TCS34725_ADDRESS | 0x01); MyI2C_ReceiveAck(); h MyI2C_ReceiveByte(); // I2C接收字节MyI2C_SendAck(0); // I2C发送应答l MyI2C_ReceiveByte(); // I2C接收字节MyI2C_SendAck(1); // I2C发送应答MyI2C_Stop(); // I2C结束条件h 8;h | l;return h;
}/**
* 描述:获取TCS34725的颜色反馈
*/
void TCS34725_getRGBC(uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *c)
{*c TCS34725_readRegWord(TCS34725_CDATAL);*r TCS34725_readRegWord(TCS34725_RDATAL);*g TCS34725_readRegWord(TCS34725_GDATAL);*b TCS34725_readRegWord(TCS34725_BDATAL);// 给定一定的采集后延时TCS34725_DelayMs(100);
}/**
* 描述:使能TCS34725内部中断
*/
void TCS34725_lock()
{uint8_t r TCS34725_ReadReg(TCS34725_ENABLE);r | TCS34725_ENABLE_AIEN;TCS34725_WriteReg(TCS34725_ENABLE, r);
}/**
* 描述:获取器件ID
* 返回:0x44 TCS34721/TCS34725, 0x4D TCS34723/TCS34727
*/
uint8_t TCS34725_getID()
{return TCS34725_ReadReg(TCS34725_ID);
}/**
* 描述:获取TCS34725状态
* 返回:返回该寄存器数值
*/
uint8_t TCS34725_getStatus()
{return TCS34725_ReadReg(TCS34725_STATUS);
}
现象 下面为代码现象。OLED上显示的分别是ID8位R8位G8位B16位C的值可以看出来测出的结果跟我设定的结果还差一点不过能测量出个大概比如偏红色啊偏蓝色啊。当然可能也是我的参数没配置好大家想要更高精度的话就要关注TCS34725_Init()里面的时间增益和数值增益了。 工程
链接包含资料Keil5工程代码*1TCS34727资料手册(英文)*1
链接https://pan.baidu.com/s/1AapcmqJjpgtlvu-eMr3Bpg 提取码wq6k
