#ifndef __PGA_H__ #define __PGA_H__ #include <stdio.h> #include <stdint.h> #include "common.h" typedef enum { PGA_Channel_0 = 0x01, // PGA0 PGA_Channel_1 = 0x02, // PGA1 PGA_Channel_A = 0x03, // PGA0 & PGA1 } PGA_Channel_t; typedef enum { PGA_PGAIN_Ref_Voltage = 0, // Select PGAIN as PGA+ input PGA_PGAGND_Ref_Voltage = 1, // Select PGAGND as PGA+ input } PGA_Vref_t; typedef enum { PGA_Gain_4 = 0, // Gain Amplifier:*4 PGA_Gain_8 = 1, // *8 PGA_Gain_10 = 2, // *10 PGA_Gain_12 = 3, // *12 PGA_Gain_14 = 4, // *14 PGA_Gain_16 = 5, // *16 PGA_Gain_32 = 6, // *32 } PGA_Gain_t; typedef enum { PGA_Out_Disable = 0, // disable PGAOUT output to port. PGA_Out_Enable = 1, //Enable PGAOUT output to port. }PGA_Out_t; typedef struct { PGA_Channel_t PGA_Channel; /*!< Specifies the channel of pga.*/ PGA_Vref_t PGA_Vref;/*!< Specifies the GND selection of feedback resistance This parameter can be a value of @ref PGA_Vref_t */ PGA_Gain_t PGA_Gain;/*!< Specifies the Programmable gain amplifier amplification factor selection This parameter can be a value of @ref PGA_Gain_t */ PGA_Out_t PGA_Out2Port; /*!< Specifies the PGAOUT whether output to port or not This parameter can be a value of @ref PGA_Out_t */ }PGA_InitTypeDef; void PGA_Init(PGA_InitTypeDef *PGA_InitStruct); void PGA_Start(PGA_Channel_t ch); void PGA_Stop(PGA_Channel_t ch); #endif