111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
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#ifndef __ADS1220_H
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#define __ADS1220_H
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// #include "main.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_system.h"
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#include "driver/spi_master.h"
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#include "driver/gpio.h"
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typedef uint8_t u8;
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typedef uint32_t u32;
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typedef int32_t s32;
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#define ADS1220_HOST SPI2_HOST
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#define SPI2_PIN_NUM_MISO 6
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#define SPI2_PIN_NUM_MOSI 5
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#define SPI2_PIN_NUM_CLK 16
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#define SPI2_PIN_NUM_CS 15
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#define PARALLEL_LINES 16
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#define ADS1220_nCS_HIGH() gpio_set_level(GPIO_NUM_38, 1)
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#define ADS1220_nCS_LOW() gpio_set_level(GPIO_NUM_38, 0)
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#define ADS1220_CMD_WREG 0x40
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#define ADS1220_CMD_RREG 0x20
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#define ADS1220_CMD_RESET 0x06
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#define ADS1220_CMD_START 0x08
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#define ADS1220_CMD_POWERDOWN 0x02
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#define ADS1220_CMD_RDATA 0x10
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#define Channal1 0x00
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#define Channal2 0x10
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#define Channal3 0x20
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#define Channal4 0x30
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#define ADS1220_REG0 0x00
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#define ADS1220_REG1 0x01
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#define ADS1220_REG2 0x02
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#define ADS1220_REG3 0x03
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#define PGAGain1 0x00
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#define PGAGain2 0x02
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#define PGAGain4 0x04
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#define PGAGain8 0x06
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#define PGAGain16 0x08
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#define PGAGain32 0x0A
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#define PGAGain64 0x0C
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#define PGAGain128 0x0E
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#define ADS1220_Standby 0
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#define ADS1220_ConvStart 1
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#define ADS1220_ConvFinish 2
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#define ADS1220_Channal1 0
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#define ADS1220_Channal2 1
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#define ADS1220_Channal3 2
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#define ADS1220_Channal4 3
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#define GPIO_INPUT_IO_39 7
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#define GPIO_INPUT_PIN_SEL (1ULL << GPIO_INPUT_IO_39)
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#define ESP_INTR_FLAG_DEFAULT 0
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typedef struct
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{
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int ch0_4ma;
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int ch0_12ma;
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float ch0_4ma_yl;
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float ch0_12ma_yl;
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int ch1_4ma;
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int ch1_12ma;
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float ch1_4ma_yl;
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float ch1_12ma_yl;
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int ch2_4ma;
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int ch2_12ma;
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float ch2_4ma_yl;
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float ch2_12ma_yl;
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}ads_cali_t;
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//extern ads_cali_t ads_cali;
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uint32_t get_now_20us(void);
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int32_t tim_diff(uint32_t a,uint32_t b);
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int ADS1220_get_rate(void);
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void ADS1220_set_rate(int i);
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void ADS1220_Init(void); // ADS1220<32><30>ʼ<EFBFBD><CABC>
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void ADS1220_Config(void); // ADS1220<32><30><EFBFBD><EFBFBD>
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void ADS1220_StartConv(u8 channal); // ADS1220<32><30><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
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void ADS1220_Reset(void); // ADS1220<32><30>λ
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void ADS1220_PowerDown(void); // ADS1220<32><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
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void ADS1220_PGASet(u8 gain); // ADS1220 PGA<47><41><EFBFBD><EFBFBD>
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void ADS1220_WriteCommand(u8 cmd); // ADS1220д<30><D0B4><EFBFBD><EFBFBD>
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s32 ADS1220_ReadData(void); // ADS1220<32><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void ADS1220_WriteReg(u8 reg,u8 dat); // ADS1220д<30>Ĵ<EFBFBD><C4B4><EFBFBD>
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u8 ADS1220_ReadReg(u8 reg); // ADS1220<32><30><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>
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u8 ADS1220_ReadWriteByte(u8 dat); // <20><>SPI<50><49><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>һ<EFBFBD>ֽ<EFBFBD>
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u32 ADS1220_ReadWrite24Bits(u32 dat); // <20><>ADS1220<32><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>24Bits
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void zero_flow1(void);
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int scale(int raw, int raw_min, int raw_max,int eng_min, int eng_max);
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#endif
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