hulk/xlsw_3dp_LDC1612
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finish Tmp112A

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This commit is contained in:
yelvlab 2024-12-07 14:50:59 +08:00
parent 1d1c0fce21
commit 7e05771ed8
5 changed files with 140 additions and 96 deletions
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7
inc/LDC1612.h
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@ -14,6 +14,7 @@
#include <stdlib.h>
#define LDC1612_ADDR (0x2B << 1)
#define TMP112A_ADDR (0x49 << 1)
/*Register Rddr*/
/***************************************************************************/
@ -57,9 +58,9 @@ typedef enum {
void I2C_config(void);
void I2C_scan(void);
uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value);
void LDC1612_read_sensor_infomation(void);
// uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value);
// void LDC1612_read_sensor_infomation(void);
uint32_t TMP112A_ReadTemperature(void);
#endif //LDC1612_H

169
src/LDC1612.c
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@ -21,21 +21,21 @@ void I2C_config(void) {
i2c_clock_config(I2C0, I2C_SPEED, I2C_DTCY_2);
// i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, LDC1612_ADDR);
i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0x72);
i2c_enable(I2C0);
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
}
void LDC1612_Init(void) {
uint8_t RCOUNT0_ALL[3]={SET_CONVERSION_TIME_REG_START,0x05,0x36};//csdn
uint8_t SETTLECOUNT0_ALL[3]={SET_LC_STABILIZE_REG_START,0x00,0x0a};
uint8_t CLOCK_DIVIDERS0_ALL[3]={SET_FREQ_REG_START,0x10,0x02};
uint8_t ERROR_CONFIG_ALL[3]={ERROR_CONFIG_REG,0x00,0x00};
uint8_t MUX_CONFIG_ALL[3]={MUL_CONFIG_REG,0x82,0x0c};
uint8_t DRIVE_CURRENT0_ALL[3]={SET_DRIVER_CURRENT_REG,0x90,0x00};
uint8_t CONFIG_ALL[3]={SENSOR_CONFIG_REG,0x14,0x01};//csdn
}
// void LDC1612_Init(void) {
// uint8_t RCOUNT0_ALL[3]={SET_CONVERSION_TIME_REG_START,0x05,0x36};//csdn
// uint8_t SETTLECOUNT0_ALL[3]={SET_LC_STABILIZE_REG_START,0x00,0x0a};
// uint8_t CLOCK_DIVIDERS0_ALL[3]={SET_FREQ_REG_START,0x10,0x02};
// uint8_t ERROR_CONFIG_ALL[3]={ERROR_CONFIG_REG,0x00,0x00};
// uint8_t MUX_CONFIG_ALL[3]={MUL_CONFIG_REG,0x82,0x0c};
// uint8_t DRIVE_CURRENT0_ALL[3]={SET_DRIVER_CURRENT_REG,0x90,0x00};
// uint8_t CONFIG_ALL[3]={SENSOR_CONFIG_REG,0x14,0x01};//csdn
//
// }
void I2C_scan(void) {
@ -91,95 +91,112 @@ void I2C_scan(void) {
}
}
uint32_t TMP112A_ReadTemperature(void) {
uint8_t data[2] = {0};
uint16_t raw_temp = 0;
uint16_t timeout = 0;
uint32_t temperature = 0;
/**
* @brief 读取16位I2C数据，带有超时机制
* @param reg: 要读取的寄存器地址
* @param value: 存储读取数据的指针
* @retval 0: 成功，1: 超时
*/
uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value) {
uint32_t timeout = 0;
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
// 发送启动信号
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;
while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) {
if ((timeout++) > I2C_TIME_OUT) return 1; // 超时
} else {
printf("err\r\n");
return -1; // 超时返回错误
}
// 发送从设备地址和写信号
i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
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;
while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) {
if ((timeout++) > I2C_TIME_OUT) return 2; // 超时
} 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);
// 发送寄存器地址
i2c_data_transmit(I2C0, reg);
timeout = 0;
while (!i2c_flag_get(I2C0, I2C_FLAG_TBE)) {
if ((timeout++) > I2C_TIME_OUT) return 3; // 超时
} else {
return -1; // 超时返回错误
}
// 重新启动信号
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;
while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) {
if ((timeout++) > I2C_TIME_OUT) return 4; // 超时
} else {
return -1; // 超时返回错误
}
// 发送从设备地址和读信号
i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
timeout = 0;
while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) {
if ((timeout++) > I2C_TIME_OUT) return 5; // 超时
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);
// 读取数据
timeout = 0;
while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
if ((timeout++) > I2C_TIME_OUT) return 6; // 超时
} else {
return -1; // 超时返回错误
}
*value = i2c_data_receive(I2C0) << 8; // 读取高8位
// 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;
while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
if ((timeout++) > I2C_TIME_OUT) return 7; // 超时
} 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
}
*value |= i2c_data_receive(I2C0); // 读取低8位
// 发送停止信号
i2c_stop_on_bus(I2C0);
timeout = 0;
return 0; // 成功
}
void LDC1612_read_sensor_infomation(void)
{
uint16_t device_id;
uint16_t manufacturer_id;
uint8_t result;
// 读取设备ID
result = IIC_read_16bit(READ_DEVICE_ID, &device_id);
if (result == 0) {
printf("Device ID: 0x%04X\n", device_id);
} else {
printf("Failed to read Device ID\n");
printf("result: %d\n", result);
}
result = IIC_read_16bit(READ_MANUFACTURER_ID, &manufacturer_id);
if (result == 0) {
printf("manufacturer ID: 0x%04X\n", manufacturer_id);
} else {
printf("Failed to read manufacturer ID\n");
printf("result: %d\n", result);
}
// 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;
}

5
src/RS485.c
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@ -4,6 +4,8 @@
#include "RS485.h"
extern uint32_t g_temperature_uint32;
void RS485_config(void) {
rcu_periph_clock_enable(RS485_GPIO_RCU);
rcu_periph_clock_enable(RS485_RCU);
@ -35,7 +37,8 @@ void process_command(char *cmd) {
if (strncmp(cmd, "M1", 2) == 0) {
printf("M1 -=-=- OK!\r\n");
} else if (strncmp(cmd, "M2", 2) == 0) {
printf("M2 -=-=- OK!\r\n");
// printf("M2 -=-=- OK!\r\n");
printf("Temperature: %lu\r\n", g_temperature_uint32);
// } else if (strncmp(cmd, "M3", 2) == 0) {
// char *param_str = cmd + 2; // Skip "M3"
// int param = atoi(param_str + 1); // Skip "S" and convert to integer

24
src/gd32e23x_it.c
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@ -36,6 +36,10 @@ OF SUCH DAMAGE.
#include "main.h"
#include "systick.h"
#include "LDC1612.h"
#include "RS485.h"
char rx_buffer[RX_BUFFER_SIZE];
uint8_t rx_index = 0;
/*!
\brief this function handles NMI exception
@ -141,3 +145,23 @@ void TIMER16_IRQHandler(void) {
led_status = !led_status;
}
}
void USART0_IRQHandler(void) {
if(RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE))
{
usart_interrupt_flag_clear(USART0, USART_INT_FLAG_RBNE);
uint8_t received_data = (uint8_t)usart_data_receive(USART0);
// 将接收到的数据存储到缓冲区
if(rx_index < RX_BUFFER_SIZE - 1) {
rx_buffer[rx_index++] = received_data;
}
// 检查是否接收到换行符，表示指令结束
if(received_data == '\n') {
rx_buffer[rx_index] = '\0'; // 添加字符串结束符
process_command(rx_buffer); // 处理指令
rx_index = 0; // 重置缓冲区索引
}
}
}

11
src/main.c
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@ -12,6 +12,8 @@
#include "RS485.h"
#include "LDC1612.h"
uint32_t g_temperature_uint32;
void led_config(void)
{
rcu_periph_clock_enable(LED_RCU);
@ -59,14 +61,11 @@ int main(void)
printf("XLSW-3DP-LDC1612! V0.0.1\r\n");
printf("\r\n");
I2C_scan();
LDC1612_read_sensor_infomation();
// I2C_scan();
while(1){
g_temperature_uint32 = TMP112A_ReadTemperature();
delay_ms(500);
}
}