電賽FDC2214模塊的程序
單片機源程序如下:
- #include "delay.h"
- #include "sys.h"
- #include "stdio.h"
- #include "usart.h"
- #include "timer.h"
- #include "FDC2214.h"
- void FDC2214_GetData(void);
- u32 ch0,ch1,ch2,ch3;
- u32 shujuchuli(u32 ch0)
- {
- u8 i;
- u32 he=0;
- for(i=0;i<=10;i++)
- {
- he=he+ch0;
-
- }
- return (he/10);
-
-
-
- }
- int main(void)
- {
- delay_init();//延時函數初始化
- uart_init(9600);//串口初始化
- TIM1_36Mhz_Init();//stm32定時器1輸出一個36mhz方波,作為fdc2214的時鐘。如果板載了40mhz的晶振,這個就不需要了。
-
- IIC_Init();
- FDC2214_Init();
- while(1)
- {
- FDC2214_GetData();
- printf("\r\nCH0~0(%d , %d , %d , %d)",ch0,ch1,ch2,shujuchuli(shujuchuli(shujuchuli(ch0))));
- delay_ms(100); //延時300ms
- }
- }
- void FDC2214_GetData(void)
- {
-
- FDC2214_GetChannelData(FDC2214_Channel_0, &ch0);
- FDC2214_GetChannelData(FDC2214_Channel_1, &ch1);
- FDC2214_GetChannelData(FDC2214_Channel_2, &ch2);
- FDC2214_GetChannelData(FDC2214_Channel_3, &ch3);
-
- }
復制代碼- #include "FDC2214.h"
- #define PI 3.14159265358979323846
- #define ClockFrequency 36000000 //時鐘頻率
- uint8_t CHx_FIN_SEL[4];
- double fREFx[4];
- /*!
- * @brief IIC寫FDC2214
- * @param Slve_Addr 器件地址
- * @param reg 寄存器
- * @param data 數據
- * @since v1.0
- * Sample usage: FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, 0xFFFF);
- */
- void FDC2214_Write16(uint8_t Slve_Addr, uint8_t reg, uint16_t data)
- {
- u8 dat;
- IIC_Start();
-
- IIC_Send_Byte(Slve_Addr << 1);
- IIC_Wait_Ack();
-
- IIC_Send_Byte(reg);
- IIC_Wait_Ack();
-
- dat=(data >> 8);
- IIC_Send_Byte(dat);
- IIC_Wait_Ack();
-
- dat=data & 0xFF;
- IIC_Send_Byte(dat);
- IIC_Wait_Ack();
-
- IIC_Stop();
- }
- /*!
- * @brief IIC讀FDC2214
- * @param Slve_Addr 器件地址
- * @param reg 寄存器
- * @return 寄存器值
- * @since v1.0
- * Sample usage: FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- */
- uint16_t FDC2214_Read16(uint8_t Slve_Addr, uint8_t reg)
- {
- uint16_t temp;
- IIC_Start();
- IIC_Send_Byte(Slve_Addr << 1);
- IIC_Wait_Ack();
- IIC_Send_Byte(reg);
- IIC_Wait_Ack();
- IIC_Start();
- IIC_Send_Byte((Slve_Addr << 1) | 0x01);
- IIC_Wait_Ack();
- temp = (uint16_t)(IIC_Read_Byte(1) << 8);
- temp |= IIC_Read_Byte(0);
- IIC_Stop();
-
- return temp;
- }
- /*!
- * @brief 讀取FDC2214一個通道的轉換值
- * @param channel 通道
- * @param *data 讀取的數據
- * @return 0:失敗;1:成功
- * @since v1.0
- * Sample usage: FDC2214_GetChannelData(FDC2214_Channel_0, &CH0_DATA);
- */
- uint8_t FDC2214_GetChannelData(FDC2214_channel_t channel, uint32_t *data)
- {
- int16_t timeout = 100;
- uint8_t dateReg_H;
- uint8_t dateReg_L;
- uint8_t bitUnreadConv;
- uint16_t status;
- uint32_t dataRead;
- switch(channel)
- {
- case FDC2214_Channel_0:
- dateReg_H = FDC2214_DATA_CH0;
- dateReg_L = FDC2214_DATA_LSB_CH0;
- bitUnreadConv = 0x0008;
- break;
- case FDC2214_Channel_1:
- dateReg_H = FDC2214_DATA_CH1;
- dateReg_L = FDC2214_DATA_LSB_CH1;
- bitUnreadConv = 0x0004;
- break;
- case FDC2214_Channel_2:
- dateReg_H = FDC2214_DATA_CH2;
- dateReg_L = FDC2214_DATA_LSB_CH2;
- bitUnreadConv = 0x0002;
- break;
- case FDC2214_Channel_3:
- dateReg_H = FDC2214_DATA_CH3;
- dateReg_L = FDC2214_DATA_LSB_CH3;
- bitUnreadConv = 0x0001;
- break;
- }
- status = FDC2214_Read16(FDC2214_Addr, FDC2214_STATUS);//讀取狀態寄存器的值
- while(timeout && !(status & bitUnreadConv))//檢查是否有未讀數據
- {
- status = FDC2214_Read16(FDC2214_Addr, FDC2214_STATUS);
- timeout--;
- }
- if(timeout)
- {
- dataRead = (uint32_t)(FDC2214_Read16(FDC2214_Addr, dateReg_H) << 16);
- dataRead |= FDC2214_Read16(FDC2214_Addr, dateReg_L);
- *data = dataRead;
- return 1;
- }
- else
- {
- //超時
-
- return 0;
- }
- }
- /*!
- * @brief 設置FDC2214一個通道的轉換時間,轉換時間(tCx)=(CHx_RCOUNT?16) / fREFx。
- * @param channel 通道
- * @param rcount CHx_RCOUNT
- * @since v1.0
- * Sample usage: FDC2214_SetRcount(FDC2214_Channel_0, 0x0FFF);
- */
- void FDC2214_SetRcount(FDC2214_channel_t channel, uint16_t rcount)
- {
- if(rcount <= 0x00FF) return;
- switch(channel)
- {
- case FDC2214_Channel_0:
- FDC2214_Write16(FDC2214_Addr, FDC2214_RCOUNT_CH0, rcount);
- break;
- case FDC2214_Channel_1:
- FDC2214_Write16(FDC2214_Addr, FDC2214_RCOUNT_CH1, rcount);
- break;
- case FDC2214_Channel_2:
- FDC2214_Write16(FDC2214_Addr, FDC2214_RCOUNT_CH2, rcount);
- break;
- case FDC2214_Channel_3:
- FDC2214_Write16(FDC2214_Addr, FDC2214_RCOUNT_CH3, rcount);
- break;
- }
- }
- /*!
- * @brief 設置FDC2214一個通道的建立時間,使LC傳感器可以在通道x開始轉換之前穩定下來,建立時間(tSx) = (CHx_SETTLECOUNT?16) ÷ fREFx。
- CHx_SETTLECOUNT = 0x00, 0x01時(tSx) = 32 ÷ fREFx。
- * @param channel 通道
- * @param count CHx_SETTLECOUNT
- * @since v1.0
- * @note CHx_SETTLECOUNT > Vpk × fREFx × C × π^2 / (32 × IDRIVEX)
- * Sample usage: FDC2214_SetSettleCount(FDC2214_Channel_0, 0x00FF);
- */
- void FDC2214_SetSettleCount(FDC2214_channel_t channel, uint16_t count)
- {
- switch(channel)
- {
- case FDC2214_Channel_0:
- FDC2214_Write16(FDC2214_Addr, FDC2214_SETTLECOUNT_CH0, count);
- break;
- case FDC2214_Channel_1:
- FDC2214_Write16(FDC2214_Addr, FDC2214_SETTLECOUNT_CH1, count);
- break;
- case FDC2214_Channel_2:
- FDC2214_Write16(FDC2214_Addr, FDC2214_SETTLECOUNT_CH2, count);
- break;
- case FDC2214_Channel_3:
- FDC2214_Write16(FDC2214_Addr, FDC2214_SETTLECOUNT_CH3, count);
- break;
- }
- }
- /*!
- * @brief 設置FDC2214一個通道的的時鐘頻率,
- 差分傳感器配置:
- 0x01 -- 傳感器頻率0.01MHz和8.75MHz
- 0x02 -- 傳感器頻率5MHz和10MHz
- 單端傳感器配置:
- 0x01 -- 傳感器頻率0.01MHz和10MHz
- * @param channel 通道
- * @param frequency_select 時鐘選擇
- * @param divider 分頻器,fREFx = fCLK / CHx_FREF_DIVIDER,
- * @note fREFx is > 4 × fSENSOR(外部LC振蕩器頻率)
- * @since v1.0
- * Sample usage: FDC2214_SetChannelClock(FDC2214_Channel_0, 0x01, 0xFF);
- */
- void FDC2214_SetChannelClock(FDC2214_channel_t channel, uint8_t frequency_select, uint16_t divider)
- {
- uint16_t temp = 0;
- temp = (uint16_t)(frequency_select << 12) | (divider & 0x03FF);
- CHx_FIN_SEL[channel] = frequency_select;//記錄時鐘選擇
- fREFx[channel] = (double)ClockFrequency / divider;//記錄時鐘頻率
- switch(channel)
- {
- case FDC2214_Channel_0:
- FDC2214_Write16(FDC2214_Addr, FDC2214_CLOCK_DIVIDERS_CH0, temp);
- break;
- case FDC2214_Channel_1:
- FDC2214_Write16(FDC2214_Addr, FDC2214_CLOCK_DIVIDERS_CH1, temp);
- break;
- case FDC2214_Channel_2:
- FDC2214_Write16(FDC2214_Addr, FDC2214_CLOCK_DIVIDERS_CH2, temp);
- break;
- case FDC2214_Channel_3:
- FDC2214_Write16(FDC2214_Addr, FDC2214_CLOCK_DIVIDERS_CH3, temp);
- break;
- }
- }
- /*!
- * @brief 配置INTB引腳中斷功能
- * @param mode 1:開中斷;0:關中斷
- * @since v1.0
- * Sample usage: FDC2214_SetDriveCurrent(FDC2214_Channel_0, FDC2214_Drive_Current_0_025);
- */
- void FDC2214_SetINTB(uint8_t mode)
- {
- uint16_t temp = 0;
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- temp &= 0xFF7F;
- if(mode)
- temp |= 0x0080;
- FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, temp);
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_ERROR_CONFIG);
- temp &= 0xFFFE;
- if(mode)
- temp |= 0x0001;
- FDC2214_Write16(FDC2214_Addr, FDC2214_ERROR_CONFIG, temp);
- }
- /*!
- * @brief 激活FDC2214的一個通道,單通道模式
- * @param channel 通道
- * @since v1.0
- * Sample usage: FDC2214_SetActiveChannel(FDC2214_Channel_0);
- */
- void FDC2214_SetActiveChannel(FDC2214_channel_t channel)
- {
- uint16_t temp = 0;
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- temp &= 0x3FFF;
- temp |= (uint16_t)(channel << 14);
- FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, temp);
- }
- /*!
- * @brief 設置FDC2214的工作模式:正常、睡眠。
- * @param mode 0:正常工作;1:睡激活模式選擇。眠
- * @since v1.0
- * Sample usage: FDC2214_SetSleepMode(0);
- */
- void FDC2214_SetSleepMode(uint8_t mode)
- {
- uint16_t temp = 0;
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- temp &= 0xDFFF;
- if(mode)temp |= 0x2000;
- FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, temp);
- }
- /*!
- * @brief FDC2214激活模式選擇。
- * @param mode 0:全電流激活模式;1:低功率激活模式
- * @since v1.0
- * Sample usage: FDC2214_SetCurrentMode(1);
- */
- void FDC2214_SetCurrentMode(uint8_t mode)
- {
- uint16_t temp = 0;
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- temp &= 0xF7FF;
- if(mode)
- temp |= 0x800;
- FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, temp);
- }
- /*!
- * @brief 設置FDC2214時鐘源
- * @param src 0:內部時鐘源;1:外部時鐘源
- * @since v1.0
- * Sample usage: FDC2214_SetClockSource(1);
- */
- void FDC2214_SetClockSource(uint8_t src)
- {
- uint16_t temp = 0;
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- temp &= 0xFDFF;
- if(src)
- temp |= 0x200;
- FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, temp);
- }
- /*!
- * @brief 高電流傳感器驅動,只適用于單通道模式。
- * @param mode 0:正常(最大1.5mA);1:高電流傳感器驅動(>1.5mA)
- * @since v1.0
- * Sample usage: FDC2214_SetHighCurrentMode(0);
- */
- void FDC2214_SetHighCurrentMode(uint8_t mode)
- {
- uint16_t temp = 0;
- temp = FDC2214_Read16(FDC2214_Addr, FDC2214_CONFIG);
- temp &= 0xFFBF;
- if(mode)
- temp |= 0x40;
- FDC2214_Write16(FDC2214_Addr, FDC2214_CONFIG, temp);
- }
- /*!
- * @brief 設置FDC2214的MUX CONFIG寄存器
- * @param autoscan 自動掃描模式 0:關閉,1:打開
- * @param channels 自動掃描通道
- * @param bandwidth 數字濾波器帶寬,大于外部LC振蕩器頻率
- * @since v1.0
- * Sample usage: FDC2214_SetMUX_CONFIG(1, FDC2214_Channel_Sequence_0_1_2, FDC2214_Bandwidth_10M);
- */
- void FDC2214_SetMUX_CONFIG(uint8_t autoscan, FDC2214_channel_sequence_t channels, FDC2214_filter_bandwidth_t bandwidth)
- {
- uint16_t temp = 0;
- if(autoscan)
- {
- temp = (uint16_t)(autoscan << 15) | (channels << 13) | 0x0208 | bandwidth;
- }
- else
- {
- temp = 0x0208 | bandwidth;
- }
- FDC2214_Write16(FDC2214_Addr, FDC2214_MUX_CONFIG, temp);
- }
- /*!
- * @brief 傳感器復位
- * @since v1.0
- * Sample usage: FDC2214_Reset();
- */
- void FDC2214_Reset(void)
- {
- FDC2214_Write16(FDC2214_Addr, FDC2214_RESET_DEV, 0x8000);
- }
- /*!
- * @brief 設置FDC2214的一個通道傳感器驅動電流,確保振蕩幅度在1.2V和1.8V之間。
- * @param channel 通道
- * @param current 電流大小
- * @since v1.0
- * Sample usage: FDC2214_SetDriveCurrent(FDC2214_Channel_0, FDC2214_Drive_Current_0_025);
- */
- void FDC2214_SetDriveCurrent(FDC2214_channel_t channel, FDC2214_drive_current_t current)
- {
- uint16_t temp = 0;
- temp = (uint16_t)(current << 11);
- switch(channel)
- {
- case FDC2214_Channel_0:
- FDC2214_Write16(FDC2214_Addr, FDC2214_DRIVE_CURRENT_CH0, temp);
- break;
- case FDC2214_Channel_1:
- FDC2214_Write16(FDC2214_Addr, FDC2214_DRIVE_CURRENT_CH1, temp);
- break;
- case FDC2214_Channel_2:
- FDC2214_Write16(FDC2214_Addr, FDC2214_DRIVE_CURRENT_CH2, temp);
- break;
- case FDC2214_Channel_3:
- FDC2214_Write16(FDC2214_Addr, FDC2214_DRIVE_CURRENT_CH3, temp);
- break;
- }
- }
- /*!
- * @brief 計算頻率
- * @param channel 通道
- * @param datax 讀取的轉換值
- * @return 頻率,單位Hz
- * @since v1.0
- * Sample usage: FDC2214_CalculateFrequency(FDC2214_Channel_0, 0xFF);
- */
- double FDC2214_CalculateFrequency(FDC2214_channel_t channel, uint32_t datax)
- {
- double frequency = 0.0;
- frequency = (double)(CHx_FIN_SEL[channel] * fREFx[channel] * datax) / 268435456.0;//2^28
- return frequency;
- }
- /*!
- * @brief 計算外部電容大小
- * @param frequency 頻率大小,單位Hz
- * @param inductance 板載電感大小,單位uH
- * @param capacitance 板載電容大小,單位pF
- * @return 外部電容大小,單位pF
- * @since v1.0
- * Sample usage: FDC2214_CalculateCapacitance(FDC2214_Channel_0, 6000000, 18, 33);
- */
- double FDC2214_CalculateCapacitance(double frequency, float inductance, float capacitance)
- {
- double cap = 0.0;
- cap = (double)(1.0 / (inductance * (2 * PI * frequency) * (2 * PI * frequency)));
- return cap;
- }
- /*!
- * @brief FDC2214初始化函數
- * @return 1:成功;0:失敗
- * @since v1.0
- * Sample usage: FDC2214_Init();
- */
- uint8_t FDC2214_Init(void)
- {
- uint16_t deviceID = 0;
- deviceID = FDC2214_Read16(FDC2214_Addr, FDC2214_DEVICE_ID);//讀器件ID
- if(deviceID == FDC2214_ID)
- {
- printf("\r\nFDC2214 ID:%d",deviceID);
- FDC2214_Reset();
-
-
- FDC2214_SetRcount(FDC2214_Channel_0, 5000);//2000us 轉換周期
- FDC2214_SetRcount(FDC2214_Channel_1, 5000);//2000us 轉換周期
- FDC2214_SetRcount(FDC2214_Channel_2, 5000);//2000us 轉換周期
- FDC2214_SetRcount(FDC2214_Channel_3, 5000);//2000us 轉換周期
- FDC2214_SetSettleCount(FDC2214_Channel_0, 200);//200 cycles 等待時間
- FDC2214_SetSettleCount(FDC2214_Channel_1, 200);//200 cycles 等待時間
- FDC2214_SetSettleCount(FDC2214_Channel_2, 200);//200 cycles 等待時間
- FDC2214_SetSettleCount(FDC2214_Channel_3, 200);//200 cycles 等待時間
- FDC2214_SetChannelClock(FDC2214_Channel_0, 2, 1);//設置時鐘分頻,1分頻,40MHz
- FDC2214_SetChannelClock(FDC2214_Channel_1, 2, 1);//設置時鐘分頻,1分頻,40MHz
- FDC2214_SetChannelClock(FDC2214_Channel_2, 2, 1);//設置時鐘分頻,1分頻,40MHz
- FDC2214_SetChannelClock(FDC2214_Channel_3, 2, 1);//設置時鐘分頻,1分頻,40MHz
-
- FDC2214_SetINTB(0);//關閉INTB中斷
-
- FDC2214_SetActiveChannel(FDC2214_Channel_0);//開啟通道0 (原來注釋)
-
- FDC2214_SetCurrentMode(0);//全電流激活模式
- FDC2214_SetClockSource(1);//外部時鐘源
- FDC2214_SetHighCurrentMode(0);//正常電流傳感器驅動
-
- FDC2214_SetMUX_CONFIG(1, FDC2214_Channel_Sequence_0_1_2_3, FDC2214_Bandwidth_10M);//打開自動掃描,10MHz帶寬
-
- FDC2214_SetDriveCurrent(FDC2214_Channel_0, FDC2214_Drive_Current_0_081);//通道0驅動電流0.081mA
- FDC2214_SetDriveCurrent(FDC2214_Channel_1, FDC2214_Drive_Current_0_081);//通道1驅動電流0.081mA
- FDC2214_SetDriveCurrent(FDC2214_Channel_2, FDC2214_Drive_Current_0_081);//通道2驅動電流0.081mA
- FDC2214_SetDriveCurrent(FDC2214_Channel_3, FDC2214_Drive_Current_0_081);//通道3驅動電流0.081mA
-
-
- FDC2214_SetSleepMode(0);//退出睡眠狀態,開始工作
- delay_ms(100);
-
- return 1;
- }
- else
- {
- printf("\r\nFDC2214 Init Failed!!");
- }
- return 0;
- }
復制代碼
所有資料51hei提供下載:
FDC2214測試代碼.7z
(191.77 KB, 下載次數: 13)
2020-1-1 12:12 上傳
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