hulk/xlsw_3dp_LDC1612
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yelvlab 2024-12-20 16:06:20 +08:00
parent 49f57c6980
commit c635adf812
15 changed files with 532 additions and 562 deletions
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8
CMakeLists.txt
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@ -24,9 +24,11 @@ set(TARGET_C_SRC
${CMAKE_SOURCE_DIR}/src/main.c
${CMAKE_SOURCE_DIR}/src/gd32e23x_it.c
${CMAKE_SOURCE_DIR}/src/systick.c
${CMAKE_SOURCE_DIR}/src/peripheral.c
${CMAKE_SOURCE_DIR}/src/LDC1612.c
${CMAKE_SOURCE_DIR}/src/RS485.c
${CMAKE_SOURCE_DIR}/src/ldc1612.c
${CMAKE_SOURCE_DIR}/src/tmp112.c
${CMAKE_SOURCE_DIR}/src/rs485.c
${CMAKE_SOURCE_DIR}/src/led.c
${CMAKE_SOURCE_DIR}/src/i2c.c
)
add_executable(xlsw_3dp_LDC1612 ${TARGET_C_SRC})

51
inc/i2c.h Normal file
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@ -0,0 +1,51 @@
//
// Created by dell on 24-12-20.
//
#ifndef I2C_H
#define I2C_H
#include "gd32e23x_it.h"
#include "gd32e23x.h"
#include "systick.h"
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define I2C_SPEED 20000
#define RCU_GPIO_I2C RCU_GPIOF
#define RCU_I2C RCU_I2C0
#define I2C_SCL_PORT GPIOF
#define I2C_SCL_PIN GPIO_PIN_1
#define I2C_SDA_PORT GPIOF
#define I2C_SDA_PIN GPIO_PIN_0
#define I2C_GPIO_AF GPIO_AF_1
#define I2C_TIME_OUT (uint16_t)(10000)
#define I2C_OK 1
#define I2C_FAIL 0
#define I2C_END 1
typedef enum {
I2C_START = 0,
I2C_SEND_ADDRESS,
I2C_CLEAR_ADDRESS_FLAG,
I2C_TRANSMIT_DATA,
I2C_STOP
} i2c_process_enum;
void i2c_gpio_config(void);
void i2c_config(void);
void i2c_bus_reset(void);
void i2c_scan(void);
uint8_t i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]);
uint8_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data);
#endif //I2C_H

46
inc/LDC1612.h → inc/ldc1612.h
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@ -13,9 +13,9 @@
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "i2c.h"
#define LDC1612_ADDR (0x2B << 1)
#define TMP112A_ADDR (0x49 << 1)
/*Register Rddr*/
/***************************************************************************/
@ -51,40 +51,12 @@
/******************************************************************************/
#define COIL_RP_KOM 15.727
#define COIL_L_UH 33
#define COIL_C_PF 150
#define COIL_Q_FACTOR 35.97
#define COIL_RP_KOM 15.727
#define COIL_L_UH 33
#define COIL_C_PF 150
#define COIL_Q_FACTOR 35.97
typedef enum {
I2C_START = 0,
I2C_SEND_ADDRESS,
I2C_CLEAR_ADDRESS_FLAG,
I2C_TRANSMIT_DATA,
I2C_STOP
} i2c_process_enum;
#define I2C_TIME_OUT (uint16_t)(10000)
#define I2C_OK 1
#define I2C_FAIL 0
#define I2C_END 1
#define I2C_SPEED 20000
#define RCU_GPIO_I2C RCU_GPIOF
#define RCU_I2C RCU_I2C0
#define I2C_SCL_PORT GPIOF
#define I2C_SCL_PIN GPIO_PIN_1
#define I2C_SDA_PORT GPIOF
#define I2C_SDA_PIN GPIO_PIN_0
#define I2C_GPIO_AF GPIO_AF_1
void i2c_gpio_config(void);
void i2c_config(void);
void i2c_bus_reset(void);
void i2c_scan(void);
/******************************************************************************/
void ldc1612_set_conversion_time(uint8_t channel, uint16_t result);
@ -116,10 +88,4 @@ uint32_t ldc1612_get_raw_channel_result(uint8_t channel);
uint32_t ldc1612_parse_raw_result(uint32_t raw_result);
uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data);
uint8_t ldc1612_iic_write_16bits(uint8_t reg_addr, uint8_t data[2]);
uint32_t TMP112A_ReadTemperature(void);
#endif //LDC1612_H

26
inc/led.h Normal file
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@ -0,0 +1,26 @@
//
// Created by dell on 24-12-20.
//
#ifndef LED_H
#define LED_H
#include "gd32e23x_it.h"
#include "gd32e23x.h"
#include "systick.h"
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define LED_PORT GPIOA
#define LED_PIN GPIO_PIN_7
#define LED_RCU RCU_GPIOA
#define LED_TIMER_RCU RCU_TIMER16
#define LED_TIMER TIMER16
#define LED_IRQ TIMER16_IRQn
void led_config(void);
#endif //LED_H

9
inc/main.h
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@ -35,13 +35,4 @@ OF SUCH DAMAGE.
#ifndef MAIN_H
#define MAIN_H
#define LED_PORT GPIOA
#define LED_PIN GPIO_PIN_7
#define LED_RCU RCU_GPIOA
#define LED_TIMER_RCU RCU_TIMER16
#define LED_TIMER TIMER16
#define LED_IRQ TIMER16_IRQn
void led_config(void);
#endif /* MAIN_H */

11
inc/peripheral.h
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@ -1,11 +0,0 @@
//
// Created by yelv1 on 24-9-22.
//
#ifndef PERIPHERAL_H
#define PERIPHERAL_H
void usart_config(void);
void led_blink_config(void);
#endif //PERIPHERAL_H

2
inc/RS485.h → inc/rs485.h
View File

@ -25,7 +25,7 @@
#define RX_BUFFER_SIZE 64
void RS485_config(void);
void rs485_config(void);
void process_command(char *cmd);
#endif //RS485_H

22
inc/tmp112.h Normal file
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@ -0,0 +1,22 @@
//
// Created by dell on 24-12-20.
//
#ifndef TMP112_H
#define TMP112_H
#include "gd32e23x_it.h"
#include "gd32e23x.h"
#include "systick.h"
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "i2c.h"
#define TMP112A_ADDR (0x49 << 1)
uint32_t tmp112a_get_raw_channel_result(void);
#endif //TMP112_H

5
src/gd32e23x_it.c
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@ -35,8 +35,9 @@ OF SUCH DAMAGE.
#include "gd32e23x_it.h"
#include "main.h"
#include "systick.h"
#include "LDC1612.h"
#include "RS485.h"
#include "ldc1612.h"
#include "rs485.h"
#include "led.h"
char rx_buffer[RX_BUFFER_SIZE];
uint8_t rx_index = 0;

594
src/LDC1612.c → src/i2c.c
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@ -1,8 +1,8 @@
//
// Created by dell on 24-12-3.
// Created by dell on 24-12-20.
//
#include "LDC1612.h"
#include "i2c.h"
/*!
\brief configure the GPIO ports
@ -37,7 +37,7 @@ void i2c_config(void) {
/* configure I2C clock */
i2c_clock_config(I2C0, I2C_SPEED, I2C_DTCY_2);
/* configure I2C address */
i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, LDC1612_ADDR);
i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0xA0);
/* enable I2CX */
i2c_enable(I2C0);
/* enable acknowledge */
@ -137,214 +137,146 @@ void i2c_scan(void) {
}
}
/** @brief set conversion interval time.
@param channel LDC1612 has total two channels.
@param result The value to be set.
* */
void ldc1612_set_conversion_time(uint8_t channel, uint16_t result) {
uint8_t data[2] = {0};
data[0] = (result >> 8) & 0xFF;
data[1] = result & 0xFF;
ldc1612_iic_write_16bits(SET_CONVERSION_TIME_REG_START + channel, data);
}
uint8_t i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]) {
uint8_t state = I2C_START;
uint16_t timeout = 0;
uint8_t i2c_timeout_flag = 0;
/** @brief set conversion offset.
@param channel LDC1612 has total two channels.
@param result The value to be set.
* */
void ldc1612_set_conversion_offset(uint8_t channel, uint16_t result) {
uint8_t data[2] = {0};
data[0] = (result >> 8) & 0xFF;
data[1] = result & 0xFF;
ldc1612_iic_write_16bits(SET_CONVERSION_OFFSET_REG_START + channel, data);
}
/* enable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while (!(i2c_timeout_flag)) {
switch (state) {
case I2C_START:
/* i2c master sends start signal only when the bus is idle */
while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDRESS;
} else {
timeout = 0;
state = I2C_START;
printf("i2c bus is busy in WRITE BYTE!\n");
}
break;
case I2C_SEND_ADDRESS:
/* i2c master sends START signal successfully */
while ((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_master_addressing(I2C0, slave_addr, I2C_TRANSMITTER);
timeout = 0;
state = I2C_CLEAR_ADDRESS_FLAG;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends start signal timeout in WRITE BYTE!\n");
}
break;
case I2C_CLEAR_ADDRESS_FLAG:
/* address flag set means i2c slave sends ACK */
while ((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
state = I2C_TRANSMIT_DATA;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master clears address flag timeout in WRITE BYTE!\n");
}
break;
case I2C_TRANSMIT_DATA:
/* wait until the transmit data buffer is empty */
while ((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
/* send IIC register address */
i2c_data_transmit(I2C0, reg_addr);
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE BYTE!\n");
}
/** @brief Before conversion,wait LC sensor stabilize for a short time.
@param channel LDC1612 has total two channels.
@param result The value to be set.
* */
void ldc1612_set_LC_stabilize_time(uint8_t channel, uint16_t result) {
uint8_t data[2] = {0};
data[0] = (result >> 8) & 0xFF;
data[1] = result & 0xFF;
ldc1612_iic_write_16bits(SET_LC_STABILIZE_REG_START + channel, data);
}
/* wait until BTC bit is set */
while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
/* send register MSB value */
i2c_data_transmit(I2C0, data[0]);
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends MSB data timeout in WRITE BYTE!\n");
}
/** @brief set input frequency divide and fref divide.
@param channel LDC1612 has total two channels.
@param FIN_DIV FIN input divide
@param FREF_DIV fref,reference frequency of sensor.
* */
void ldc1612_set_freq_divide(uint8_t channel) {
uint16_t value;
uint16_t fin_div, freq_div;
float sensor_freq;
/* wait until BTC bit is set */
while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
/* send register LSB value */
i2c_data_transmit(I2C0, data[1]);
timeout = 0;
state = I2C_STOP;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends LSB data timeout in WRITE BYTE!\n");
}
sensor_freq = 1 / (2 * 3.14 * sqrt(COIL_L_UH * COIL_C_PF * pow(10, -18))) * pow(10, -6);
fin_div = (uint16_t) (sensor_freq / 8.75 + 1);
if (fin_div * 4 < 40) {
freq_div = 2;
} else {
freq_div = 4;
/* wait until BTC bit is set */
while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
state = I2C_STOP;
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE BYTE!\n");
}
break;
case I2C_STOP:
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
/* i2c master sends STOP signal successfully */
while ((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_END;
i2c_timeout_flag = I2C_OK;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends stop signal timeout in WRITE BYTE!\n");
}
break;
default:
state = I2C_START;
i2c_timeout_flag = I2C_OK;
timeout = 0;
printf("i2c master sends start signal in WRITE BYTE.\n");
break;
}
}
value = fin_div << 12;
value |= freq_div;
// printf("\tvalue: 0x%x\r\n", value);
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
// printf("\tFIN_DIV: %d, FREF_DIV: %d\r\n", fin_div, freq_div);
ldc1612_iic_write_16bits(SET_FREQ_REG_START + channel, data);
return I2C_END;
}
/** @brief Error output config.
@param result The value to be set.
* */
void ldc1612_set_error_config(uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
ldc1612_iic_write_16bits(ERROR_CONFIG_REG, data);
}
/** @brief mux config.
@param result The value to be set.
* */
void ldc1612_set_mux_config(uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
ldc1612_iic_write_16bits(MUL_CONFIG_REG, data);
}
/** @brief reset sensor.
* */
void ldc1612_reset_sensor(void) {
uint8_t data[2] = {0};
data[0] = 0x80;
data[1] = 0x00;
ldc1612_iic_write_16bits(SENSOR_RESET_REG, data);
}
/** @brief set drive current of sensor.
@param result The value to be set.
* */
void ldc1612_set_drive_current(uint8_t channel, uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
ldc1612_iic_write_16bits(SET_DRIVER_CURRENT_REG + channel, data);
}
/** @brief Main config part of sensor.Contains select channel、start conversion、sleep mode、sensor activation mode、INT pin disable ..
@param result The value to be set.
* */
void ldc1612_set_sensor_config(uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
ldc1612_iic_write_16bits(SENSOR_CONFIG_REG, data);
}
void ldc1612_single_ch0_config(void) {
ldc1612_set_freq_divide(CHANNEL_0); //0x14 --0x1002
ldc1612_set_LC_stabilize_time(CHANNEL_0, LC_STABILIZE_TIME_CH0); //0x10 --0x001E
ldc1612_set_conversion_time(CHANNEL_0, LDC1612_CONVERSION_TIME_CH0); //0x08 --0x0546
ldc1612_set_error_config(LDC1612_ERROR_CONFIG); //0x19 --0x0000)
ldc1612_set_drive_current(CHANNEL_0, LDC1612_DRIVE_CURRENT); //0x1E --0x9000
ldc1612_set_mux_config(LDC1612_MUX_CONFIG); //0x1B --0x020C
ldc1612_set_sensor_config(LDC1612_SENSOR_CONFIG); //0x1A --0x1601
}
void ldc1612_iic_get_sensor_infomation(void) {
uint8_t data[2] = {0};
ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
printf("\tManufacturer: 0x%x\r\n", (data[0] << 8) | data[1]);
ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
printf("\tDevice: 0x%x\r\n", (data[0] << 8) | data[1]);
}
uint16_t ldc1612_get_manufacturer_id(void) {
uint8_t data[2] = {0};
ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
return (data[0] << 8) | data[1];
}
uint16_t ldc1612_get_deveice_id(void) {
uint8_t data[2] = {0};
ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
return (data[0] << 8) | data[1];
}
/** @brief read the raw channel result from register.
@param channel LDC1612 has total two channels.
@param result raw data
* */
uint32_t ldc1612_get_raw_channel_result(uint8_t channel) {
uint32_t raw_value = 0;
uint8_t value[2] = {0};
ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
raw_value |= (uint32_t) ((value[0] << 8) | value[1]) << 16;
ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel + 1, value);
raw_value |= (uint32_t) ((value[0] << 8) | value[1]);
return ldc1612_parse_raw_result(raw_value);
}
/** @brief parse the data which read from data register.
@param channel LDC1612 has total two channels.
@param raw_result the raw data which read from data register,it contains error codes and sensor value;
* */
uint32_t ldc1612_parse_raw_result(uint32_t raw_result) {
uint32_t calibration_value = 0;
uint8_t error_code = 0;
calibration_value = raw_result & 0x0FFFFFFF;
if (0xFFFFFFF == calibration_value) {
return 0xF0000000;
// ERR_NC-No coil detected!!!
}
error_code = raw_result >> 24;
if (error_code & 0x80) {
return 0x80000000;
// ERR_UR-Under range error!!!
}
if (error_code & 0x40) {
return 0x40000000;
// ERR_OR-Over range error!!!
}
if (error_code & 0x20) {
return 0x20000000;
// ERR_WD-Watch dog timeout error!!!
}
if (error_code & 0x10) {
return 0x10000000;
// ERR_AE-error!!!
}
return raw_result;
}
uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
uint8_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data) {
uint8_t state = I2C_START;
uint8_t read_cycle = 0;
uint16_t timeout = 0;
@ -373,7 +305,6 @@ uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
}
}
/* send the start signal */
delay_us(5);
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDRESS;
@ -385,10 +316,10 @@ uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
}
if (timeout < I2C_TIME_OUT) {
if (RESET == read_cycle) {
i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
i2c_master_addressing(I2C0, slave_addr, I2C_TRANSMITTER);
state = I2C_CLEAR_ADDRESS_FLAG;
} else {
i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
i2c_master_addressing(I2C0, slave_addr, I2C_RECEIVER);
i2c_ack_config(I2C0, I2C_ACK_DISABLE);
state = I2C_CLEAR_ADDRESS_FLAG;
}
@ -507,252 +438,3 @@ uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
}
return I2C_END;
}
uint8_t ldc1612_iic_write_16bits(uint8_t reg_addr, uint8_t data[2]) {
uint8_t state = I2C_START;
uint16_t timeout = 0;
uint8_t i2c_timeout_flag = 0;
/* enable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while (!(i2c_timeout_flag)) {
switch (state) {
case I2C_START:
/* i2c master sends start signal only when the bus is idle */
while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDRESS;
} else {
timeout = 0;
state = I2C_START;
printf("i2c bus is busy in WRITE BYTE!\n");
}
break;
case I2C_SEND_ADDRESS:
/* i2c master sends START signal successfully */
while ((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
timeout = 0;
state = I2C_CLEAR_ADDRESS_FLAG;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends start signal timeout in WRITE BYTE!\n");
}
break;
case I2C_CLEAR_ADDRESS_FLAG:
/* address flag set means i2c slave sends ACK */
while ((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
state = I2C_TRANSMIT_DATA;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master clears address flag timeout in WRITE BYTE!\n");
}
break;
case I2C_TRANSMIT_DATA:
/* wait until the transmit data buffer is empty */
while ((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
/* send IIC register address */
i2c_data_transmit(I2C0, reg_addr);
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE BYTE!\n");
}
/* wait until BTC bit is set */
while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
/* send register MSB value */
i2c_data_transmit(I2C0, data[0]);
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends MSB data timeout in WRITE BYTE!\n");
}
/* wait until BTC bit is set */
while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
/* send register LSB value */
i2c_data_transmit(I2C0, data[1]);
timeout = 0;
state = I2C_STOP;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends LSB data timeout in WRITE BYTE!\n");
}
/* wait until BTC bit is set */
while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
state = I2C_STOP;
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE BYTE!\n");
}
break;
case I2C_STOP:
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
/* i2c master sends STOP signal successfully */
while ((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_END;
i2c_timeout_flag = I2C_OK;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends stop signal timeout in WRITE BYTE!\n");
}
break;
default:
state = I2C_START;
i2c_timeout_flag = I2C_OK;
timeout = 0;
printf("i2c master sends start signal in WRITE BYTE.\n");
break;
}
}
return I2C_END;
}
uint32_t TMP112A_ReadTemperature(void) {
uint8_t data[2] = {0};
uint16_t raw_temp = 0;
uint16_t timeout = 0;
uint32_t temperature = 0;
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) //判断IIC总线是否忙，发送起始信号
timeout++;
if (timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
} else {
printf("err\r\n");
return -1; // 超时返回错误
}
while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) //判断起始位是否发送，设置sensor地址并设置为写
timeout++;
if (timeout < I2C_TIME_OUT) {
i2c_master_addressing(I2C0, TMP112A_ADDR, I2C_TRANSMITTER);
timeout = 0;
} else {
return -1; // 超时返回错误
}
while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
timeout++;
if (timeout < I2C_TIME_OUT) {
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
} else {
return -1; // 超时返回错误
}
while (!i2c_flag_get(I2C0, I2C_FLAG_TBE) && (timeout < I2C_TIME_OUT)) //判断地址是否发送完成，然后发送寄存器地址
timeout++;
if (timeout < I2C_TIME_OUT) {
i2c_data_transmit(I2C0, 0x00);
timeout = 0;
// i2c_start_on_bus(I2C0);
} else {
return -1; // 超时返回错误
}
while (i2c_flag_get(I2C0, I2C_FLAG_BTC) && (timeout < I2C_TIME_OUT)) //判断发送缓冲器是否为空，为空后（发送完毕）重新发送开始信号
timeout++;
if (timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
} else {
return -1; // 超时返回错误
}
while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
i2c_master_addressing(I2C0, TMP112A_ADDR, I2C_RECEIVER);
timeout = 0;
} else {
return -1; // 超时返回错误
}
while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
timeout++;
if (timeout < I2C_TIME_OUT) {
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
} else {
return -1; // 超时返回错误
}
// 读取第一个字节的数据
while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
data[0] = i2c_data_receive(I2C0);
timeout = 0;
} else {
return -1; // 超时返回错误
}
i2c_ack_config(I2C0, I2C_ACK_DISABLE); // 关闭发送ACK，它会在下一个字节完成后发送NAK
// 读取第二个字节的数据
while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if (timeout < I2C_TIME_OUT) {
data[1] = i2c_data_receive(I2C0);
timeout = 0;
} else {
return -1; // 超时返回错误
}
i2c_stop_on_bus(I2C0);
// printf("data[0]: %x, data[1]: %x\r\n", data[0], data[1]);
raw_temp = ((uint16_t) (data[0] << 4) | (data[1]>>4));
// printf("raw_temp: %x\r\n", raw_temp);
// printf("raw_temp(dec): %d\r\n", raw_temp);
temperature = raw_temp * 625;
// printf("temperature: %d\r\n", temperature);
return temperature;
}

215
src/ldc1612.c Normal file
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@ -0,0 +1,215 @@
//
// Created by dell on 24-12-3.
//
#include "ldc1612.h"
/** @brief set conversion interval time.
@param channel LDC1612 has total two channels.
@param result The value to be set.
* */
void ldc1612_set_conversion_time(uint8_t channel, uint16_t result) {
uint8_t data[2] = {0};
data[0] = (result >> 8) & 0xFF;
data[1] = result & 0xFF;
i2c_read_16bits(LDC1612_ADDR, SET_CONVERSION_TIME_REG_START + channel, data);
}
/** @brief set conversion offset.
@param channel LDC1612 has total two channels.
@param result The value to be set.
* */
void ldc1612_set_conversion_offset(uint8_t channel, uint16_t result) {
uint8_t data[2] = {0};
data[0] = (result >> 8) & 0xFF;
data[1] = result & 0xFF;
i2c_read_16bits(LDC1612_ADDR, SET_CONVERSION_OFFSET_REG_START + channel, data);
}
/** @brief Before conversion,wait LC sensor stabilize for a short time.
@param channel LDC1612 has total two channels.
@param result The value to be set.
* */
void ldc1612_set_LC_stabilize_time(uint8_t channel, uint16_t result) {
uint8_t data[2] = {0};
data[0] = (result >> 8) & 0xFF;
data[1] = result & 0xFF;
i2c_read_16bits(LDC1612_ADDR, SET_LC_STABILIZE_REG_START + channel, data);
}
/** @brief set input frequency divide and fref divide.
@param channel LDC1612 has total two channels.
@param FIN_DIV FIN input divide
@param FREF_DIV fref,reference frequency of sensor.
* */
void ldc1612_set_freq_divide(uint8_t channel) {
uint16_t value;
uint16_t fin_div, freq_div;
float sensor_freq;
sensor_freq = 1 / (2 * 3.14 * sqrt(COIL_L_UH * COIL_C_PF * pow(10, -18))) * pow(10, -6);
fin_div = (uint16_t) (sensor_freq / 8.75 + 1);
if (fin_div * 4 < 40) {
freq_div = 2;
} else {
freq_div = 4;
}
value = fin_div << 12;
value |= freq_div;
// printf("\tvalue: 0x%x\r\n", value);
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
// printf("\tFIN_DIV: %d, FREF_DIV: %d\r\n", fin_div, freq_div);
i2c_read_16bits(LDC1612_ADDR, SET_FREQ_REG_START + channel, data);
}
/** @brief Error output config.
@param result The value to be set.
* */
void ldc1612_set_error_config(uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
i2c_read_16bits(LDC1612_ADDR, ERROR_CONFIG_REG, data);
}
/** @brief mux config.
@param result The value to be set.
* */
void ldc1612_set_mux_config(uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
i2c_read_16bits(LDC1612_ADDR, MUL_CONFIG_REG, data);
}
/** @brief reset sensor.
* */
void ldc1612_reset_sensor(void) {
uint8_t data[2] = {0};
data[0] = 0x80;
data[1] = 0x00;
i2c_read_16bits(LDC1612_ADDR, SENSOR_RESET_REG, data);
}
/** @brief set drive current of sensor.
@param result The value to be set.
* */
void ldc1612_set_drive_current(uint8_t channel, uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
i2c_read_16bits(LDC1612_ADDR, SET_DRIVER_CURRENT_REG + channel, data);
}
/** @brief Main config part of sensor.Contains select channel、start conversion、sleep mode、sensor activation mode、INT pin disable ..
@param result The value to be set.
* */
void ldc1612_set_sensor_config(uint16_t value) {
uint8_t data[2] = {0};
data[0] = (value >> 8) & 0xFF;
data[1] = value & 0xFF;
i2c_read_16bits(LDC1612_ADDR, SENSOR_CONFIG_REG, data);
}
void ldc1612_single_ch0_config(void) {
ldc1612_set_freq_divide(CHANNEL_0); //0x14 --0x1002
ldc1612_set_LC_stabilize_time(CHANNEL_0, LC_STABILIZE_TIME_CH0); //0x10 --0x001E
ldc1612_set_conversion_time(CHANNEL_0, LDC1612_CONVERSION_TIME_CH0); //0x08 --0x0546
ldc1612_set_error_config(LDC1612_ERROR_CONFIG); //0x19 --0x0000)
ldc1612_set_drive_current(CHANNEL_0, LDC1612_DRIVE_CURRENT); //0x1E --0x9000
ldc1612_set_mux_config(LDC1612_MUX_CONFIG); //0x1B --0x020C
ldc1612_set_sensor_config(LDC1612_SENSOR_CONFIG); //0x1A --0x1601
}
void ldc1612_iic_get_sensor_infomation(void) {
uint8_t data[2] = {0};
// ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
printf("\tManufacturer: 0x%x\r\n", (data[0] << 8) | data[1]);
// ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
printf("\tDevice: 0x%x\r\n", (data[0] << 8) | data[1]);
}
uint16_t ldc1612_get_manufacturer_id(void) {
uint8_t data[2] = {0};
i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
return (data[0] << 8) | data[1];
}
uint16_t ldc1612_get_deveice_id(void) {
uint8_t data[2] = {0};
i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
return (data[0] << 8) | data[1];
}
/** @brief read the raw channel result from register.
@param channel LDC1612 has total two channels.
@param result raw data
* */
uint32_t ldc1612_get_raw_channel_result(uint8_t channel) {
uint32_t raw_value = 0;
uint8_t value[2] = {0};
// ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel, value);
raw_value |= (uint32_t) ((value[0] << 8) | value[1]) << 16;
// ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel + 1, value);
i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel + 1, value);
raw_value |= (uint32_t) ((value[0] << 8) | value[1]);
return ldc1612_parse_raw_result(raw_value);
}
/** @brief parse the data which read from data register.
@param channel LDC1612 has total two channels.
@param raw_result the raw data which read from data register,it contains error codes and sensor value;
* */
uint32_t ldc1612_parse_raw_result(uint32_t raw_result) {
uint32_t calibration_value = 0;
uint8_t error_code = 0;
calibration_value = raw_result & 0x0FFFFFFF;
if (0xFFFFFFF == calibration_value) {
return 0xF0000000;
// ERR_NC-No coil detected!!!
}
error_code = raw_result >> 24;
if (error_code & 0x80) {
return 0x80000000;
// ERR_UR-Under range error!!!
}
if (error_code & 0x40) {
return 0x40000000;
// ERR_OR-Over range error!!!
}
if (error_code & 0x20) {
return 0x20000000;
// ERR_WD-Watch dog timeout error!!!
}
if (error_code & 0x10) {
return 0x10000000;
// ERR_AE-error!!!
}
return raw_result;
}

32
src/led.c Normal file
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@ -0,0 +1,32 @@
//
// Created by dell on 24-12-20.
//
#include "led.h"
void led_config(void) {
rcu_periph_clock_enable(LED_RCU);
gpio_mode_set(LED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_PIN);
gpio_output_options_set(LED_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, LED_PIN);
gpio_bit_write(LED_PORT, LED_PIN, SET);
rcu_periph_clock_enable(LED_TIMER_RCU);
timer_deinit(LED_TIMER);
timer_parameter_struct timer_initpara;
timer_struct_para_init(&timer_initpara);
timer_initpara.prescaler = 799;
timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection = TIMER_COUNTER_UP;
timer_initpara.period = 999;
timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
timer_init(LED_TIMER, &timer_initpara);
timer_auto_reload_shadow_enable(LED_TIMER);
timer_interrupt_enable(LED_TIMER, TIMER_INT_UP);
timer_enable(LED_TIMER);
nvic_irq_enable(LED_IRQ, 2);
}

50
src/main.c
View File

@ -9,37 +9,12 @@
#include "gd32e23x.h"
#include "systick.h"
#include "gd32e23x_libopt.h"
#include "RS485.h"
#include "LDC1612.h"
#include "rs485.h"
#include "ldc1612.h"
#include "led.h"
uint32_t g_temperature_uint32;
void led_config(void) {
rcu_periph_clock_enable(LED_RCU);
gpio_mode_set(LED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_PIN);
gpio_output_options_set(LED_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, LED_PIN);
gpio_bit_write(LED_PORT, LED_PIN, SET);
rcu_periph_clock_enable(LED_TIMER_RCU);
timer_deinit(LED_TIMER);
timer_parameter_struct timer_initpara;
timer_struct_para_init(&timer_initpara);
timer_initpara.prescaler = 799;
timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection = TIMER_COUNTER_UP;
timer_initpara.period = 999;
timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
timer_init(LED_TIMER, &timer_initpara);
timer_auto_reload_shadow_enable(LED_TIMER);
timer_interrupt_enable(LED_TIMER, TIMER_INT_UP);
timer_enable(LED_TIMER);
nvic_irq_enable(LED_IRQ, 2);
}
uint32_t g_eddy_current_value_uint32;
/*!
\brief main function
@ -50,23 +25,24 @@ void led_config(void) {
int main(void) {
/* configure systick */
systick_config();
RS485_config();
/* configure USART */
rs485_config();
/* configure LED */
led_config();
/* configure I2C */
i2c_gpio_config();
i2c_config();
uint32_t raw_value = 0;
delay_ms(500);
ldc1612_iic_get_sensor_infomation();
/* configure LDC1612 */
ldc1612_single_ch0_config();
while (1) {
delay_ms(500);
raw_value = ldc1612_get_raw_channel_result(CHANNEL_0);
printf("data:%ld\r\n",raw_value);
g_temperature_uint32 = TMP112A_ReadTemperature();
g_eddy_current_value_uint32 = 0;
g_temperature_uint32 = 0;
g_eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
g_temperature_uint32 = tmp112a_get_raw_channel_result();
}
}

8
src/RS485.c → src/rs485.c
View File

@ -2,11 +2,12 @@
// Created by dell on 24-12-3.
//
#include "RS485.h"
#include "rs485.h"
extern uint32_t g_temperature_uint32;
extern uint32_t g_eddy_current_value_uint32;
void RS485_config(void) {
void rs485_config(void) {
rcu_periph_clock_enable(RS485_GPIO_RCU);
rcu_periph_clock_enable(RS485_RCU);
@ -35,7 +36,8 @@ void RS485_config(void) {
void process_command(char *cmd) {
if (strncmp(cmd, "M1", 2) == 0) {
printf("M1 -=-=- OK!\r\n");
// printf("M1 -=-=- OK!\r\n");
printf("EddyCurrent: %lu\r\n", g_eddy_current_value_uint32);
} else if (strncmp(cmd, "M2", 2) == 0) {
// printf("M2 -=-=- OK!\r\n");
printf("Temperature: %lu\r\n", g_temperature_uint32);

15
src/tmp112.c Normal file
View File

@ -0,0 +1,15 @@
//
// Created by dell on 24-12-20.
//
#include "tmp112.h"
uint32_t tmp112a_get_raw_channel_result(void) {
uint16_t raw_value = 0;
uint8_t value[2] = {0};
// ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
i2c_read_16bits(TMP112A_ADDR, 0x00, value);
raw_value = ((uint16_t) (value[0] << 4) | (value[1]>>4));
return (raw_value * 625);
}