diff --git a/EWARM/Project.ewp b/EWARM/Project.ewp
index ee20536..0b6edc0 100644
--- a/EWARM/Project.ewp
+++ b/EWARM/Project.ewp
@@ -2230,6 +2230,12 @@
$PROJ_DIR$\..\drivers\drv_adc.h
+
+ $PROJ_DIR$\..\drivers\drv_i2c.c
+
+
+ $PROJ_DIR$\..\drivers\drv_i2c.h
+
$PROJ_DIR$\..\drivers\drv_usart.c
diff --git a/EWARM/Project.ewt b/EWARM/Project.ewt
index 410f1a9..e8c39c0 100644
--- a/EWARM/Project.ewt
+++ b/EWARM/Project.ewt
@@ -2901,6 +2901,12 @@
$PROJ_DIR$\..\drivers\drv_adc.h
+
+ $PROJ_DIR$\..\drivers\drv_i2c.c
+
+
+ $PROJ_DIR$\..\drivers\drv_i2c.h
+
$PROJ_DIR$\..\drivers\drv_usart.c
diff --git a/drivers/drv_i2c.c b/drivers/drv_i2c.c
new file mode 100644
index 0000000..990543a
--- /dev/null
+++ b/drivers/drv_i2c.c
@@ -0,0 +1,121 @@
+/*************************************************
+Copyright (c) 2025, 成都赛联科技有限责任公司
+All rights reserved.
+@file drv_i2c.C
+@brief drv_i2c驱动程序
+
+@details
+@note
+@author dufresne
+@date 2025/09/24
+
+@version v1.0 2025/09/24 初始版本
+*************************************************/
+
+#include "drv_i2c.h"
+#include "rtthread.h"
+#include
+
+/*
+ @ brief 延时函数
+ @ param
+ @ return
+ @ note 2025-09-15
+*/
+static void delay_us(int us)
+{
+ rt_thread_udelay(us);
+}
+
+void i2c_init(void)
+{
+ i2c_gpio_config();
+ i2c_config();
+}
+/*
+ @ brief 初始化tmp75芯片GPIO引脚
+ @ param
+ @ return
+ @ note 2025-09-15
+*/
+void i2c_gpio_config(void)
+{
+ // 配置引脚时钟
+ rcu_periph_clock_enable(RCU_GPIOB);
+
+ gpio_af_set(GPIOB, GPIO_AF_4, I2C_SCL_PIN | I2C_SDA_PIN);
+ /* 初始化GPIO复用功能模式 */
+ gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_PULLUP, I2C_SCL_PIN | I2C_SDA_PIN);
+ gpio_output_options_set(GPIOB, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SCL_PIN | I2C_SDA_PIN);
+}
+
+void i2c_config(void)
+{
+ // 启用 I2C 外设的时钟
+ rcu_periph_clock_enable(RCU_I2C0);
+
+ // 配置 I2C 的时钟参数：
+ // I2C_PERIPH：这里使用的I2C1
+ // I2C_SPEED：通信速率（单位为 Hz，常用为 100000 或 400000），这里使用100000
+ i2c_clock_config(I2C_PERIPH, I2C_SPEED, I2C_DTCY_2);
+
+ // 配置 I2C 工作模式和地址：
+ // I2C_ADDFORMAT_7BITS：使用 7 位地址模式
+ // I2C_BUS_ADDRESS：SD2068器件代码0110010 = 0x32
+ i2c_mode_addr_config(I2C_PERIPH, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, I2C_BUS_ADDRESS);
+
+ // 启用 I2C 外设
+ i2c_enable(I2C_PERIPH);
+
+ // 使能 ACK 应答功能，确保在接收数据后自动发送 ACK
+ i2c_ack_config(I2C_PERIPH, I2C_ACK_ENABLE);
+}
+
+/*
+ @ brief 读取温度值
+ @ param
+ @ return
+ @ note 2025-09-15
+*/
+float tmp75_read_temp(void)
+{
+ uint8_t tempH = 0;
+ uint8_t tempL = 0;
+ uint16_t tempCode = 0;
+ float temp = 0;
+
+ // 起始信号
+ i2c_start();
+ // 写tmp75地址
+ tmp75_write_byte(TMP75_ADDRESS);
+ // 接收tmp75的ack信息
+ tmp75_ack();
+ // 发送需读取数据的地址
+ tmp75_write_byte(TEMP_REGISTER_ADDRESS);
+ tmp75_ack();
+
+ i2c_start();
+ // 写tmp75地址
+ tmp75_write_byte(TMP75_ADDRESS + 1); // 读地址数据
+ tmp75_ack();
+ tempH = tmp75_read_byte();
+ master_ack();
+ tempL = tmp75_read_byte();
+ master_noack();
+ i2c_stop();
+
+ tempCode = (tempH << 8) | tempL;
+ tempCode = tempCode >> 6;
+ if (tempCode & 0x200) // 负温度
+ {
+ tempCode &= 0x1ff;
+ temp = ((float)tempCode - 512) / 4;
+ }
+ else
+ {
+ temp = (float)tempCode / 4;
+ }
+ TMP75_SDA_LOW;
+ TMP75_SCL_LOW;
+ return (temp);
+}
diff --git a/drivers/drv_i2c.h b/drivers/drv_i2c.h
new file mode 100644
index 0000000..5ecf346
--- /dev/null
+++ b/drivers/drv_i2c.h
@@ -0,0 +1,41 @@
+///Copyright (c) 2022, 四川汇源光通信有限公司
+///All rights reserved.
+///@file drv_i2c.h
+///@brief drv_i2c驱动程序
+///
+///@details
+///@note
+///@author dufresne
+///@date 2025/09/24
+///
+///@version v1.0 2025/09/24 初始版本
+
+#ifndef DRV_I2C_H
+#define DRV_I2C_H
+
+#include "gd32f4xx_gpio.h"
+#include "gd32f4xx_i2c.h"
+
+
+
+#define I2C_PERIPH I2C0
+#define I2C_SCL_PIN GPIO_PIN_6
+#define I2C_SDA_PIN GPIO_PIN_7
+#define I2C_SPEED 100000
+
+// #define I2C_SCL_HIGH gpio_bit_set(GPIOB, I2C_SCL_PIN)
+// #define I2C_SCL_LOW gpio_bit_reset(GPIOB, I2C_SCL_PIN)
+
+// #define I2C_SDA_HIGH gpio_bit_set(GPIOB, I2C_SDA_PIN)
+// #define I2C_SDA_LOW gpio_bit_reset(GPIOB, I2C_SDA_PIN)
+// #define I2C_SDA_GET gpio_input_bit_get(GPIOB, I2C_SDA_PIN)
+
+
+void i2c_init(void);
+void i2c_gpio_config(void);
+void i2c_config(void);
+
+void temp75_gpio_init();
+float tmp75_read_temp(void);
+
+#endif
\ No newline at end of file
diff --git a/drivers/mb85rc64/mb85rc64.h b/drivers/mb85rc64/mb85rc64.h
index ee46b3d..ea29f04 100644
--- a/drivers/mb85rc64/mb85rc64.h
+++ b/drivers/mb85rc64/mb85rc64.h
@@ -17,6 +17,9 @@
#define MB85RC64_ADDRESS_WRITE 0xA0
#define MB85RC64_ADDRESS_READ 0xA1
+//mb85rc64洢ַ
+#define MB85RC64_SAVE_ADDRESS_BEGIN 0x0000
+
#define MB85RC64_SCL_HIGH gpio_bit_set(GPIOB, GPIO_PIN_6)
#define MB85RC64_SCL_LOW gpio_bit_reset(GPIOB, GPIO_PIN_6)
@@ -25,8 +28,6 @@
#define MB85RC64_SDA_LOW gpio_bit_reset(GPIOB, GPIO_PIN_7)
#define MB85RC64_SDA_GET gpio_input_bit_get(GPIOB, GPIO_PIN_7)
-//mb85rc64洢ַ
-#define MB85RC64_SAVE_ADDRESS_BEGIN 0x0000
void mb85rc64_gpio_init();
char mb85rc64_page_write(unsigned short int addr, unsigned char* data, int data_len);
diff --git a/drivers/tmp75/tmp75.c b/drivers/tmp75/tmp75.c
index d3b3e68..b907cf6 100644
--- a/drivers/tmp75/tmp75.c
+++ b/drivers/tmp75/tmp75.c
@@ -207,6 +207,7 @@ static void master_noack()
TMP75_SCL_LOW;
delay_us(5);
}
+
/*
@ brief ȡ¶ֵ
@ param
@@ -239,6 +240,7 @@ float tmp75_read_temp(void)
tempL = tmp75_read_byte();
master_noack();
i2c_stop();
+
tempCode = (tempH << 8) | tempL;
tempCode = tempCode >> 6;
if (tempCode & 0x200) // ¶