终于把433通讯整出来了，不过程序空间快不够了要好好优化一下

2021-10-15 22:06:08 +08:00
parent 36917d148f
commit 230f928a0f
52 changed files with 9483 additions and 6084 deletions
@@ -0,0 +1,107 @@
+/*
+ * r480r.c
+ *
+ *  Created on: 2021年10月15日
+ *      Author: wuwenfeng
+ */
+
+
+#include "r480r.h"
+#define read_infrared  HAL_GPIO_ReadPin(infeaed_GPIO_Port,infeaed_Pin)
+
+extern TIM_HandleTypeDef htim14;
+uint16_t timer_100us_tick=0;
+int read_bit_flag=0;
+int read_char_flag=0;
+char read_data_buffer[3];
+char read_begin=0;
+
+void r480_init()
+{
+	HAL_TIM_Base_Start_IT(&htim14);
+	r480.times=0;
+}
+
+void read_433_exit()
+{
+
+	char a=read_infrared;
+	int b;
+	if(read_begin==0)
+	{
+		if(a==0)
+		{
+			timer_100us_tick=0;
+			return ;
+		}else
+		{
+			if(timer_100us_tick>70&&timer_100us_tick<100)
+			{
+				read_begin=1;
+				r480.times++;
+				read_bit_flag=0;
+				read_char_flag=0;
+				timer_100us_tick=0;
+				return ;
+			}
+		}
+
+	}else
+	{
+		if(timer_100us_tick<5)
+		{
+			timer_100us_tick=0;
+			return ;
+		}else if(timer_100us_tick<12)
+		{
+			read_data_buffer[read_char_flag]<<=1;
+			if(a==1)
+			{
+				read_data_buffer[read_char_flag]|=0x01;
+			}
+			read_bit_flag++;
+			if(read_bit_flag==8)
+			{
+				read_bit_flag=0;
+				read_char_flag++;
+				if(read_char_flag==3)
+				{
+					//got data
+
+					read_char_flag=0;
+					timer_100us_tick=0;
+
+					r480.add[0]=read_data_buffer[0];
+					r480.add[1]=read_data_buffer[1];
+					r480.key=read_data_buffer[2];
+				}
+			}
+			timer_100us_tick=0;
+			return ;
+		}else//time out
+		{
+			read_begin=0;
+			timer_100us_tick=0;
+			return ;
+		}
+	}
+
+}
+
+void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
+{
+	switch(GPIO_Pin)
+	{
+		case infeaed_Pin:
+			read_433_exit();
+			return ;
+			break;
+	}
+}
+void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)//100us
+{
+    if (htim == (&htim14))
+        {
+    	timer_100us_tick++;
+        }
+}