add log.c

bsp/bsp_can.c

@@ -4,7 +4,7 @@
 #include "memory.h"
 
 /* can instance ptrs storage, used for recv callback */
-static can_instance *instance[MX_REGISTER_DEVICE_CNT]={NULL};
+static can_instance *instance[MX_REGISTER_DEVICE_CNT] = {NULL};
 
 /* ----------------two static function called by CANRegister()-------------------- */
 

bsp/bsp_log.c

@@ -0,0 +1,31 @@
+#include "bsp_log.h"
+
+#include "SEGGER_RTT.h"
+#include "SEGGER_RTT_Conf.h"
+#include <stdio.h>
+
+#define BUFFER_INDEX 0
+
+void BSP_Log_Init() { SEGGER_RTT_Init(); }
+
+int printf_log(const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    int n = SEGGER_RTT_vprintf(BUFFER_INDEX, fmt, &args);
+    va_end(args);
+    return n;
+}
+
+void Float2Str(char *str, float va)
+{
+    int flag = va < 0;
+    int head = (int)va;
+    int point = (int)((va - head) * 1000);
+    head = abs(head);
+    point = abs(point);
+    if (flag)
+        sprintf(str, "-%d.%d", head, point);
+    else
+        sprintf(str, "%d.%d", head, point);
+}

bsp/bsp_log.h

@@ -0,0 +1,8 @@
+#ifndef _BSP_LOG_H
+#define _BSP_LOG_H
+
+void BSP_Log_Init();
+int printf_log(const char *fmt, ...);
+void Float2Str(char *str, float va);
+
+#endif

bsp/bsp_log.md

@@ -0,0 +1,5 @@
+# bsp_log
+
+<p align='right'>neozng1@hnu.edu.cn</p>
+
+## 使用说明

bsp/bsp_usart.c

@@ -13,7 +13,7 @@
 
 /* usart service instance, modules' info would be recoreded here using USARTRegister() */
 /* usart服务实例,所有注册了usart的模块信息会被保存在这里 */
-static usart_instance *instance[DEVICE_USART_CNT]={NULL};
+static usart_instance *instance[DEVICE_USART_CNT] = {NULL};
 
 /**
  * @brief usart service will start automatically, after each module registered