From 20a2aa293307cf9216d3deddb0e2e003e07068f9 Mon Sep 17 00:00:00 2001
From: guanjiao <sqrgj@163.com>
Date: 星期三, 12 九月 2018 09:25:32 +0800
Subject: [PATCH] 新增串口AT指令解析c文件
---
源码/核心板/Src/application/serial_at_cmd_app.c | 71 +++++++++++++++++++++++++++++++++++
源码/核心板/Src/application/serial_at_cmd_app.h | 16 ++++++++
2 files changed, 87 insertions(+), 0 deletions(-)
diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/application/serial_at_cmd_app.c" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/application/serial_at_cmd_app.c"
new file mode 100644
index 0000000..c8864cb
--- /dev/null
+++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/application/serial_at_cmd_app.c"
@@ -0,0 +1,71 @@
+#include "serial_at_cmd_app.h"
+#include <string.h>
+
+uint8_t g_frame_data[MAX_FRAME_LEN] = {0};
+uint8_t g_frame_data_len = 0;
+
+uint32_t g_alarm_dist = 200;
+uint8_t g_alarm_dev = 0;
+
+void ParseFrame(void)
+{
+ if(!memcmp(g_frame_data, "SET", 3))
+ {
+ g_alarm_dist = (g_frame_data[3]-'0')*1000 + (g_frame_data[4]-'0')*100 + (g_frame_data[5]-'0')*10 + (g_frame_data[6]-'0');
+ }
+ else if(!memcmp(g_frame_data, "DEV", 3))
+ {
+ g_alarm_dev = g_frame_data[3]-'0';
+ }
+}
+
+void UsartParseDataHandler(uint8_t data)
+{
+ static uint8_t s_usart_state = 0;
+ static uint8_t s_data_pos;
+
+ switch(s_usart_state)
+ {
+ case 0:
+ if(data=='A') s_usart_state= 1;
+ break;
+
+ case 1:
+ if(data=='T') s_usart_state = 2;
+ break;
+
+ case 2:
+ if(data=='+')
+ {
+ s_usart_state = 3;
+ s_data_pos = 0;
+ g_frame_data_len = 0;
+ }
+ break;
+
+ case 3:
+ g_frame_data_len = s_data_pos;
+ g_frame_data[s_data_pos++] = data;
+ if(data == 0x0d)
+ {
+ s_usart_state = 4;
+ }
+ if(s_data_pos >= MAX_FRAME_LEN) //如果超过最大长度
+ {
+ g_frame_data_len = MAX_FRAME_LEN;
+ ParseFrame();
+ s_usart_state = 0;
+ }
+ break;
+
+ case 4:
+ if(data == 0x0a)
+ {
+ ParseFrame();
+ s_usart_state = 0;
+ }
+ break;
+
+ default: break;
+ }
+}
diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/application/serial_at_cmd_app.h" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/application/serial_at_cmd_app.h"
new file mode 100644
index 0000000..b9b061f
--- /dev/null
+++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/application/serial_at_cmd_app.h"
@@ -0,0 +1,16 @@
+
+#ifndef __AT_CMD_H__
+#define __AT_CMD_H__
+
+#include "stm32f10x.h"
+
+#define MAX_FRAME_LEN 50
+
+extern uint32_t g_alarm_dist;
+extern uint8_t g_alarm_dev;
+
+void UsartParseDataHandler(uint8_t data);
+
+
+#endif
+
--
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