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为了降低DIY难度，我提供了方案二：采用现成的模块来搭建解码器，需要如下模块 1、STM8S103F单片机模块和编程器
2、433M无线接收模块
3、PL2303 USB转串口模块
另外还需要一些杜邦线用来连接这些模块，这些东西都可以在淘宝上买得到。 STM8S103F代码如下 /** ****************************************************************************** * @file Project/main.c * @author MCD Application Team * @version V2.1.0 * @date 18-November-2011 * @brief Main program body ****************************************************************************** * @attention * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * * © COPYRIGHT 2011 STMicroelectronics ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include #include #include "stm8s.h" #include "stm8s_exti.h" #include "stm8s_it.h" #include "stm8s_gpio.h" #include "stm8s_tim2.h" #include "stm8s_tim4.h" #include "stm8s_uart1.h" /* Private defines -----------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ #define LED_GPIO_PORT (GPIOB) #define LED_GPIO_PINS (GPIO_PIN_5) #define PULS_LEVEL_HIGH (1) #define PULS_LEVEL_LOW (0) #define DEBUG (1) #define USER_CODE_NUMBER_MAX (10) #define USER_CODE_INFO_MAGIC (0x12345678) #define LED_ON GPIO_WriteLow(GPIOB, GPIO_PIN_5) #define LED_OFF GPIO_WriteHigh(GPIOB, GPIO_PIN_5) #define LED_REVERSE GPIO_WriteReverse(GPIOB, GPIO_PIN_5) u32 code_addr; u32 code = 0; u32 puls_high = 0; u32 puls_low = 0; u8 current_puls_level=PULS_LEVEL_LOW; u8 check_flag = 0; u8 found_flag = 0; s32 value = 0; u32 last_code = 0; u32 last_valid_code = 0; u32 puls_width_compare = 0; u8 bit_count = 0; u8 learn_flag = 0; u32 learn_led_count = 0; u32 timeout_count = 0; u32 time_count = 0; u32 puls_high_time = 0; u32 puls_low_time = 0; u32 button_down_count = 0; struct user_code_info { u32 magic; u8 number; u16 code[USER_CODE_NUMBER_MAX]; }; struct user_code_info user_info; /* Private defines -----------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ void Init_GPIO(void) { // led, PB5 GPIO_Init(GPIOB, GPIO_PIN_5, GPIO_MODE_OUT_PP_LOW_FAST); LED_OFF; // 433M signal input, PC3, pull up, interrupt GPIO_Init(GPIOC, GPIO_PIN_3, GPIO_MODE_IN_FL_IT); EXTI_DeInit(); EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOC, EXTI_SENSITIVITY_RISE_FALL);//falling and rising // button GPIO_Init(GPIOC, GPIO_PIN_4, GPIO_MODE_IN_PU_NO_IT); // ouput gpio GPIO_Init(GPIOC, GPIO_PIN_5, GPIO_MODE_OUT_PP_LOW_FAST); GPIO_WriteLow(GPIOC, GPIO_PIN_5); GPIO_Init(GPIOC, GPIO_PIN_6, GPIO_MODE_OUT_PP_LOW_FAST); GPIO_WriteLow(GPIOC, GPIO_PIN_6); GPIO_Init(GPIOC, GPIO_PIN_7, GPIO_MODE_OUT_PP_LOW_FAST); GPIO_WriteLow(GPIOC, GPIO_PIN_7); GPIO_Init(GPIOD, GPIO_PIN_2, GPIO_MODE_OUT_PP_LOW_FAST); GPIO_WriteLow(GPIOD, GPIO_PIN_2); } void Init_Timer4(void) { TIM4_ARRPreloadConfig(ENABLE); TIM4_TimeBaseInit(TIM4_PRESCALER_8, 0xff);// TIM4_ClearFlag(TIM4_FLAG_UPDATE); TIM4_ITConfig(TIM4_IT_UPDATE, ENABLE); //TIM4_Cmd(ENABLE); } void Init_Timer2(void) { TIM2_DeInit(); TIM2_TimeBaseInit(TIM2_PRESCALER_64,0xFFFF); TIM2_ITConfig(TIM2_IT_UPDATE , ENABLE); TIM2_SetCounter(0); TIM2_Cmd(ENABLE); } void Init_Clk(void) { CLK_DeInit(); CLK_HSICmd(ENABLE); CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV2); Init_Timer2(); } #if DEBUG void Init_UART1(void) { UART1_DeInit(); UART1_Init((u32)9600, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO, UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TX_ENABLE); UART1_Cmd(ENABLE); } void UART1_Send(uint8_t dat) { while(( UART1_GetFlagStatus(UART1_FLAG_TXE)==RESET)); UART1_SendData8(dat); } int putchar(int c) { UART1_Send((u8)c); return (c); } #endif void delay_ms(u32 t) { u32 i; for(;t>0;t--) for(i=0xFF;i>0;i--); } void Init_EEPROM(void) { FLASH_DeInit(); FLASH_Unlock(FLASH_MEMTYPE_DATA); FLASH_SetProgrammingTime(FLASH_PROGRAMTIME_STANDARD); } void read_user_code_info(struct user_code_info *info) { u32 addr = FLASH_DATA_START_PHYSICAL_ADDRESS; u8 i; u8 *p = (u8 *)info; for(i =0;inumber); for(i=0;inumber;i++) { printf("code[%d]:0x%04x\r\n", i, info->code[i]); } } void save_new_code(struct user_code_info *info, u16 code) { u8 i; for(i = 0;inumber;i++) { if(info->code[i] == code) return; } if(info->number < USER_CODE_NUMBER_MAX) { info->code[info->number] = code; info->number++; } else { for(i=1;icode[i-1] = info->code[i]; } info->code[USER_CODE_NUMBER_MAX-1] = code; } write_user_code_info(&user_info); dump_user_code_info(&user_info); } void my_job(u8 channel) { switch(channel) { case 1:GPIO_WriteReverse(GPIOC, GPIO_PIN_5);break; case 2:GPIO_WriteReverse(GPIOC, GPIO_PIN_6);break; case 3:GPIO_WriteReverse(GPIOC, GPIO_PIN_7);break; case 4:GPIO_WriteReverse(GPIOD, GPIO_PIN_2);break; default:break; } } #if 0 void handle_code(u32 code) { u16 addr = code >> 8; u8 data = code & 0xFF; s8 channel = -1; // PT6624 chip if(data == 0xC0 || data == 0x30 || data == 0x0C || data == 0x03) { switch(data) { case 0xC0:channel = 1;break; case 0x30:channel = 2;break; case 0x0C:channel = 3;break; case 0x03:channel = 4;break; default: break; } } else // other chip { switch(data&0x0F) { case 0x08:channel = 1;break; case 0x04:channel = 2;break; case 0x02:channel = 3;break; case 0x01:channel = 4;break; default: break; } } if(learn_flag) { save_new_code(&user_info, addr); learn_flag = 0; } else { u8 i; if(user_info.number==0) { return; } else { for(i = 0;i < user_info.number;i++) { if(user_info.code[i] == addr) { my_job(channel); LED_ON; delay_ms(100); LED_OFF; delay_ms(300); } } } } #if DEBUG printf("code:0x%lx addr:0x%04x data:0x%02x chan:%d\r\n", code, addr, data, channel); #endif } #else void handle_code(u32 code) { u16 addr = code >> 8; u8 data = code & 0xFF; //printf("addr:0x%04x data:0x%02x\n", addr, data); printf("{\"type\":\"trigger\", \"addr\":\"0x%04x\",\"data\":\"0x%02x\"}", addr, data); LED_ON; delay_ms(100); LED_OFF; delay_ms(400); } #endif void main(void) { Init_Clk(); Init_GPIO(); Init_Timer2(); Init_Timer4(); Init_EEPROM(); #if DEBUG Init_UART1(); #endif read_user_code_info(&user_info); if(user_info.magic != USER_CODE_INFO_MAGIC) { memset(&user_info, 0, sizeof(user_info)); user_info.magic = USER_CODE_INFO_MAGIC; user_info.number = 0; write_user_code_info(&user_info); } dump_user_code_info(&user_info); enableInterrupts(); while (1) { // button if(GPIO_ReadInputPin(GPIOC, GPIO_PIN_4)==0) { button_down_count++; } else { // long press, 3 seconds if(button_down_count > 80000) { user_info.number = 0; write_user_code_info(&user_info); learn_flag = 0; u8 i; for(i = 0;i 10000) { learn_flag = !learn_flag; } button_down_count = 0; } if(check_flag) { if(found_flag == 0) { if(puls_high_time>0) { value = puls_low_time/puls_high_time; if(value > 24 && value < 35) { found_flag =1; code = 0; bit_count = 0; } } } else { if(bit_count == 0) { puls_width_compare = puls_high_time+puls_low_time; } value = puls_high_time+puls_low_time-puls_width_compare; if(value < 20 && value > -20) { code =150) { TIM4_Cmd(DISABLE); i=0; last_valid_code = 0; } TIM4_ClearITPendingBit(TIM4_IT_UPDATE); } INTERRUPT_HANDLER(TIM2_UPD_OVF_BRK_IRQHandler, 13) { /* In order to detect unexpected events during development, it is recommended to set a breakpoint on the following instruction. */ //LED_REVERSE; time_count += 0xFFFF; TIM2_ClearITPendingBit(TIM2_IT_UPDATE); } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval : None */ void assert_failed(u8* file, u32 line) { /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* Infinite loop */ while (1) { } } #endif /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ 从代码中可以看到，解码成功后，把数据格式化成JSON，然后通过printf输出到串口，这样路由器就可以从USB串口读取到解码数据了。项目源代码：http://pan.baidu.com/s/1mhMXuNQ 密码：f1e5 |
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