基于STM32的FDC2214参考设计，详细中文资料、程序源码及PCB原理图文件
2022-05-04 20:41:20
7.09MB
1
#define _FDC2X14_C
#include "sys.h"
#include "FDC2X14.h"
#include "myiic.h"
#include "delay.h"
#include "usart.h"
#define FDC2X14_Address 0x2A
#define FDC2X14_W FDC2X14_Address<<1
#define FDC2X14_R (FDC2X14_Address<<1)+1
#define DATA_CH0 0x00
#define DATA_LSB_CH0 0x01
#define DATA_CH1 0x02
#define DATA_LSB_CH1 0x03
#define DATA_CH2 0x04
#define DATA_LSB_CH2 0x05
#define DATA_CH3 0x06
#define DATA_LSB_CH3 0x07
#define RCOUNT_CH0 0x08
#define RCOUNT_CH1 0x09
#define RCOUNT_CH2 0x0A
#define RCOUNT_CH3 0x0B
#define OFFSET_CH0 0x0C
#define OFFSET_CH1 0x0D
#define OFFSET_CH2 0x0E
#define OFFSET_CH3 0x0F
#define SETTLECOUNT_CH0 0x10
#define SETTLECOUNT_CH1 0x11
#define SETTLECOUNT_CH2 0x12
#define SETTLECOUNT_CH3 0x13
#define CLOCK_DIVIDERS_C_CH0 0x14
#define CLOCK_DIVIDERS_C_CH1 0x15
#define CLOCK_DIVIDERS_C_CH2 0x16
#define CLOCK_DIVIDERS_C_CH3 0x17
#define STATUS 0x18
#define ERROR_CONFIG 0x19
#define CONFIG 0x1A
#define MUX_CONFIG 0x1B
#define RESET_DEV 0x1C
#define DRIVE_CURRENT_CH0 0x1E
#define DRIVE_CURRENT_CH1 0x1F
#define DRIVE_CURRENT_CH2 0x20
#define DRIVE_CURRENT_CH3 0x21
#define MANUFACTURER_ID 0x7E
#define DEVICE_ID 0x7F
u32 Init_FDC[4];
u32 Data_FDC[4];
///FDC2X14 IO��ʼ��
void FDC2X14_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO;_InitStructure);
GPIO_ResetBits(GPIOB,GPIO_Pin_9); // ������
IIC_Init();//��ʼ��iic
//����SetFDC2X14�Ĵ���
SetFDC2X14(RCOUNT_CH0,0x30,0xCB);
SetFDC2X14(RCOUNT_CH1,0x30,0xCB);
SetFDC2X14(RCOUNT_CH2,0x30,0xCB);
SetFDC2X14(RCOUNT_CH3,0x30,0xCB);
SetFDC2X14(CLOCK_DIVIDERS_C_CH0,0xff,0x01);
SetFDC2X14(CLOCK_DIVIDERS_C_CH1,0x20,0x01);
SetFDC2X14(CLOCK_DIVIDERS_C_CH0,0x20,0x01);
SetFDC2X14(CLOCK_DIVIDERS_C_CH1,0x20,0x01);
SetFDC2X14(SETTLECOUNT_CH0,0xff,0xff);
SetFDC2X14(SETTLECOUNT_CH1,0x00,0x19);
SetFDC2X14(SETTLECOUNT_CH2,0x00,0x19);
SetFDC2X14(SETTLECOUNT_CH3,0x00,0x19);
SetFDC2X14(ERROR_CONFIG,0x00,0x00);
SetFDC2X14(MUX_CONFIG,0x82,0x0c);
SetFDC2X14(DRIVE_CURRENT_CH0,0x50,0x00);
SetFDC2X14(DRIVE_CURRENT_CH1,0x50,0x00);
SetFDC2X14(DRIVE_CURRENT_CH2,0x50,0x00);
SetFDC2X14(DRIVE_CURRENT_CH3,0x50,0x00);
SetFDC2X14(CONFIG,0x14,0x01);//ʹ���ⲿʱ�� 0x17 0x01
//��ȡ��ʼֵ���ֵ�
Init_FDC[0]=FDC2X14ReadCH(0);
Init_FDC[1]=FDC2X14ReadCH(1);
Init_FDC[2]=FDC2X14ReadCH(2);
Init_FDC[3]=FDC2X14ReadCH(3);
}
//���ݶ�ȡ
//indexͨ������
int FDC2X14ReadCH(u8 index)
{
int result;
switch(index)
{
case 0x00:
result = ReadFDC2X14(DATA_CH0,DATA_LSB_CH0);
break;
case 0x01:
result = ReadFDC2X14(DATA_CH1,DATA_LSB_CH1);
break;
case 0x02:
result = ReadFDC2X14(DATA_CH2,DATA_LSB_CH2);
break;
case 0x03:
result = ReadFDC2X14(DATA_CH3,DATA_LSB_CH3);
break;
}
// printf("result=%d \r\n",result);
return result;
}
void SetFDC2X14(u8 Address,u8 MSB,u8 LSB)
{
IIC_Start();
IIC_Send_Byte(FDC2X14_W);
IIC_Wait_Ack();
ADS_delay();
IIC_Send_Byte(Address);
IIC_Wait_Ack();
ADS_delay();
IIC_Send_Byte(MSB);
IIC_Wait_Ack();
ADS_delay();
IIC_Send_Byte(LSB);
IIC_Wait_Ack();
ADS_delay();
IIC_Stop();
ADS_delay();
}
unsigned int ReadFDC2X14(u8 firstAddress,u8 secondAddress)
{
unsigned int temp;
u8 result[4];
IIC_Start();
IIC_Send_Byte(FDC2X14_W);
IIC_Wait_Ack();
ADS_delay();
IIC_Send_Byte(firstAddress);
IIC_Wait_Ack();
ADS_delay();
IIC_Stop();
ADS_delay();
IIC_Start();
IIC_Send_Byte(FDC2X14_R);
IIC_Wait_Ack();
ADS_delay();
result[0]=IIC_Read_Byte(1);//���ֽ� ����λ����
result[0] = result[0]<>4;
IIC_Ack();
ADS_delay();
result[1]=(IIC_Read_Byte(1)); //temp=���ֽ�+���ֽ�
IIC_Ack();
IIC_Stop();
ADS_delay();
IIC_Start();
IIC_Send_Byte(FDC2X14_W);
IIC_Wait_Ack();
ADS_delay();
IIC_Send_Byte(secondAddress);
IIC_Wait_Ack();
ADS_delay();
IIC_Stop();
ADS_delay();
IIC_Start();
IIC_Send_Byte(FDC2X14_R);
IIC_Wait_Ack();
ADS_delay();
result[2]=IIC_Read_Byte(1);//���ֽ� ����λ����
IIC_Ack();
ADS_delay();
result[3]=(IIC_Read_Byte(1)); //temp=���ֽ�+���ֽ�
IIC_Ack();
IIC_Stop();
ADS_delay();
temp = (unsigned int)(((result[0]<< 24) | (result[1] << 16) | (result[2] << 8) | (result[3] & 0xff)));
return(temp);
}
unsigned int ReadFDC2X14_1(u8 firstAddress)
{
unsigned int temp;
u8 result[4];
IIC_Start();
IIC_Send_Byte(FDC2X14_W);
IIC_Wait_Ack();
ADS_delay();
IIC_Send_Byte(firstAddress);
IIC_Wait_Ack();
ADS_delay();
IIC_Stop();
ADS_delay();
IIC_Start();
IIC_Send_Byte(FDC2X14_R);
IIC_Wait_Ack();
ADS_delay();
result[0]=IIC_Read_Byte(1);//���ֽ� ����λ����
IIC_Ack();
ADS_delay();
result[1]=(IIC_Read_Byte(1)); //temp=���ֽ�+���ֽ�
IIC_Ack();
IIC_Stop();
ADS_delay();
temp=(result[1]<<8)+result[1];
return(temp);
}
/*������·����
*index:0����·0
* 1����·1
* 2����·2
* 3����·3
*����ֵ����·�ܵ���C
*/
float Cap_Calculate(u8 index)
{
float Cap,cap_init;
Data_FDC[index]= FDC2X14ReadCH(index);
Cap = 114262451.63/(Data_FDC[index]);
cap_init=114262451.63/(Init_FDC[index]);
return (Cap*Cap)-(cap_init*cap_init);
}
float Cap_Calculate_Xtimce(u8 timce,u8 index)
{
float Cap;
u8 i;
Cap=0;
for(i=0;i
2022-02-25 14:08:21
8.88MB
1
本项目是基于STM32F103的纸张计数显示装置设计，采用的方案是FDC2214电容数字传感器。该项目可实现一键自动检测，无需手动按压等操作。开源资料包括展示视频、设计报告、3D模型（使用Rhino打开）、PCB文件、完整程序。
2022-01-18 18:03:10
331.76MB
1
包含了fdc2214的全部使用方式，以及芯片的详细资料。FDC2x1x抗电磁干扰的28位，12位电容数字转换器，用于接近性和抗干扰性液位传感应用
1特点
•抗电磁干扰建筑
•最大输出速率（一个活动通道）：
- 13.3ksps（FDC2112，FDC2114）
- 4.08ksps（FDC2212，FDC2214）
•最大输入电容：250 nF（10 kHz，1 mH电感）
•传感器激励频率：10 kHz至10 MHz
•频道数量：2，4
•分辨率：最多28位
•系统本底噪声：100 sps 0.3 fF
•电源电压：2.7 V至3.6 V
•功耗：有效：2.1毫安
•低功耗睡眠模式：35 uA
•关机：200 nA
•接口：I 2 C
•温度范围：-40°C至+ 125°C
2021-11-28 13:11:01
3MB
1
FDC2214程序STM32OLED串口ZET6，用于stm32zet6的学习，联系，用于fdc2214的串口联系，学习
2021-11-22 19:47:29
4.46MB
1