add sw-iic hw-iic fwdgt

inc/board_config.h

@@ -5,14 +5,15 @@
 #ifndef BOARD_CONFIG_H
 #define BOARD_CONFIG_H
 
-#define SOFTWARE_IIC
+// #define SOFTWARE_IIC
 
 // #define DEBUG_VERBOES
 
 /******************************************************************************/
 
-#define RCU_GPIO_I2C         RCU_GPIOF
-#define RCU_I2C              RCU_I2C0
+#define I2C_GPIO_RCU         RCU_GPIOF
+#define I2C_RCU              RCU_I2C0
+#define I2C_PHY              I2C0
 #define I2C_SCL_PORT         GPIOF
 #define I2C_SCL_PIN          GPIO_PIN_1
 #define I2C_SDA_PORT         GPIOF
@@ -21,8 +22,8 @@
 
 /******************************************************************************/
 
-#define USART_RCU            RCU_USART0
 #define USART_GPIO_RCU       RCU_GPIOA
+#define USART_RCU            RCU_USART0
 #define USART_GPIO_PORT      GPIOA
 #define USART_GPIO_AF        GPIO_AF_1
 #define USART_TX_PIN         GPIO_PIN_2

inc/fwdgt.h

@@ -0,0 +1,17 @@
+//
+// Created by yelv1 on 24-12-29.
+//
+
+#ifndef FWDGT_H
+#define FWDGT_H
+
+#include "gd32e23x.h"
+#include "board_config.h"
+
+void watchdog_init(void);
+
+void fwdgt_reset_mcu(void);
+
+void watchdog_reload(void);
+
+#endif //FWDGT_H

inc/i2c.h

@@ -0,0 +1,53 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef I2C_H
+#define I2C_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "systick.h"
+#include "main.h"
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "board_config.h"
+
+/******************************************************************************/
+
+#define I2C_SPEED       20000
+
+#define I2C_TIME_OUT    (uint16_t)(5000)
+#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

inc/main.h

@@ -41,6 +41,13 @@ OF SUCH DAMAGE.
 #include "gd32e23x_libopt.h"
 #include "led.h"
 #include "usart.h"
+#include "fwdgt.h"
 #include "board_config.h"
 
+#ifdef SOFTWARE_IIC
+#include "soft_i2c.h"
+#else
+#include "i2c.h"
+#endif
+
 #endif /* MAIN_H */

inc/soft_i2c.h

@@ -0,0 +1,53 @@
+//
+// Created by dell on 24-12-28.
+//
+
+#ifndef SOFT_I2C_H
+#define SOFT_I2C_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "systick.h"
+#include "main.h"
+
+#include "board_config.h"
+
+/******************************************************************************/
+
+#define I2C_SCL_HIGH()      gpio_bit_set(I2C_SCL_PORT, I2C_SCL_PIN)
+#define I2C_SCL_LOW()       gpio_bit_reset(I2C_SCL_PORT, I2C_SCL_PIN)
+#define I2C_SDA_HIGH()      gpio_bit_set(I2C_SDA_PORT, I2C_SDA_PIN)
+#define I2C_SDA_LOW()       gpio_bit_reset(I2C_SDA_PORT, I2C_SDA_PIN)
+#define I2C_SDA_READ()      gpio_input_bit_get(I2C_SDA_PORT, I2C_SDA_PIN)
+
+/******************************************************************************/
+
+#define SOFT_I2C_OK          1
+#define SOFT_I2C_FAIL        0
+#define SOFT_I2C_END         1
+
+/******************************************************************************/
+
+void soft_i2c_delay(void);
+
+void soft_i2c_config(void);
+
+void soft_i2c_start(void);
+
+void soft_i2c_stop(void);
+
+void soft_i2c_send_ack(void);
+
+void soft_i2c_send_nack(void);
+
+uint8_t soft_i2c_wait_ack(void);
+
+void soft_i2c_send_byte(uint8_t data);
+
+uint8_t soft_i2c_receive_byte(uint8_t ack);
+
+uint8_t soft_i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]);
+
+uint8_t soft_i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data);
+
+#endif //SOFT_I2C_H