add usart(rs485)

inc/board_config.h

@@ -21,13 +21,15 @@
 
 /******************************************************************************/
 
-#define RS485_RCU            RCU_USART0
-#define RS485_GPIO_RCU       RCU_GPIOA
-#define RS485_GPIO_PORT      GPIOA
-#define RS485_TX_PIN         GPIO_PIN_2
-#define RS485_RX_PIN         GPIO_PIN_3
-#define RS485_PHY            USART0
-#define RS485_BAUDRATE       115200U
+#define USART_RCU            RCU_USART0
+#define USART_GPIO_RCU       RCU_GPIOA
+#define USART_GPIO_PORT      GPIOA
+#define USART_GPIO_AF        GPIO_AF_1
+#define USART_TX_PIN         GPIO_PIN_2
+#define USART_RX_PIN         GPIO_PIN_3
+#define USART_PHY            USART0
+#define USART_PHY_BAUDRATE   115200U
+#define RS485_EN_PORT        GPIOA
 #define RS485_EN_PIN         GPIO_PIN_1
 
 /******************************************************************************/

inc/gd32e23x_it.h

@@ -36,6 +36,9 @@ OF SUCH DAMAGE.
 #define GD32E23X_IT_H
 
 #include "gd32e23x.h"
+#include "main.h"
+#include "systick.h"
+#include "board_config.h"
 
 /* function declarations */
 /* this function handles NMI exception */
@@ -49,4 +52,6 @@ void PendSV_Handler(void);
 /* this function handles SysTick exception */
 void SysTick_Handler(void);
 
+void TIMER16_IRQHandler(void);
+
 #endif /* GD32E23X_IT_H */

inc/led.h

@@ -0,0 +1,14 @@
+//
+// Created by yelv1 on 24-12-30.
+//
+
+#ifndef LED_H
+#define LED_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "board_config.h"
+
+void led_blink_config(void);
+
+#endif //LED_H

inc/main.h

@@ -35,4 +35,12 @@ OF SUCH DAMAGE.
 #ifndef MAIN_H
 #define MAIN_H
 
+#include <stdio.h>
+#include "gd32e23x.h"
+#include "systick.h"
+#include "gd32e23x_libopt.h"
+#include "led.h"
+#include "usart.h"
+#include "board_config.h"
+
 #endif /* MAIN_H */

inc/peripheral.h

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

inc/usart.h

@@ -0,0 +1,15 @@
+//
+// Created by yelv1 on 24-12-30.
+//
+
+#ifndef USART_H
+#define USART_H
+
+#include "gd32e23x.h"
+#include "board_config.h"
+
+void usart_config(void);
+
+void rs485_config(void);
+
+#endif //USART_H