ZigBee協(xié)議棧串口與應(yīng)用

ZigBee串口應(yīng)用一、串口收發(fā)基礎(chǔ)實(shí)驗(yàn)二、ZigBee協(xié)議棧串口應(yīng)用擴(kuò)展實(shí)驗(yàn)實(shí)驗(yàn)課題:串口數(shù)據(jù)收發(fā)基礎(chǔ)實(shí)驗(yàn)實(shí)驗(yàn)?zāi)康模豪么谑瞻l(fā)數(shù)據(jù)試驗(yàn)步驟：ZigBee協(xié)議棧中串口通信的配置使用一個(gè)結(jié)構(gòu)體來實(shí)現(xiàn)，該結(jié)構(gòu)體為hal_UARTCfg_t,不必關(guān)心該結(jié)構(gòu)體的具體定義形式，只需要對(duì)其功能有個(gè)了解，該結(jié)構(gòu)體將串口初始化的參數(shù)集合在一起，只需要初始化各個(gè)參數(shù)即可最后使用HalUARTOpen()函數(shù)對(duì)串口進(jìn)行初始化，該函數(shù)將halUARTCfg_t類型的結(jié)構(gòu)體變量作為相關(guān)參數(shù)回調(diào)函數(shù):通過指針（函數(shù)地址）調(diào)用的函數(shù)。如果把函數(shù)的地址作為參數(shù)傳遞給另一個(gè)函數(shù)，當(dāng)通過這個(gè)指針調(diào)用它所指向的函數(shù)時(shí)，稱為函數(shù)的回調(diào)。一、串口收發(fā)基礎(chǔ)實(shí)驗(yàn)使用串口的基本步驟：①初始化串口，包括設(shè)置波特率、中斷等；②向發(fā)送緩沖區(qū)發(fā)送數(shù)據(jù)或者從接收緩沖區(qū)讀取數(shù)據(jù)。串口工作原理剖析在ZigBee協(xié)議棧中，halUARTCfg_t結(jié)構(gòu)體是如何定義的；串口是如何初始化的；發(fā)送給串口的數(shù)據(jù)時(shí)如何接受的；串口是如何向PC機(jī)發(fā)送數(shù)據(jù)的。這些問題涉及如下三個(gè)函數(shù)……ZigBee協(xié)議棧中提供的與串口操作有關(guān)的三個(gè)函數(shù)為（可在zmain.c和hal_uart.c中查看相關(guān)函數(shù)）uint8HalUARTOpen(uint8halUARTCfg_t*config);uint16HalUARTRead(uint8port,uint8*buf,uint16len);Uint16HalUARTWrite(uint8prot,uint*buf,uint16len);Coordinator.c#include"OSAL.h"#include"AF.h"#include"ZDApp.h"#include"ZDObject.h"#include"ZDProfile.h"#include<String.h>#include"Coordinator.h"#include"DebugTrace.h"#if!defined(WIN32)#include"OnBoard.h"#endif#include"hal_lcd.h"#include"hal_led.h"#include"hal_key.h"#include"hal_uart.h"http://包含頭文件constcId_tGenericApp_ClusterList[GENERICAPP_MAX_CLUSTERS]={GENERICAPP_CLUSTERID};constSimpleDescriptionFormat_tGenericApp_SimpleDesc={GENERICAPP_ENDPOINT,GENERICAPP_PROFID,GENERICAPP_DEVICEID,GENERICAPP_DEVICE_VERSION,GENERICAPP_FLAGS,GENERICAPP_MAX_CLUSTERS,(cId_t*)GenericApp_ClusterList,0,(cId_t*)NULL};endPointDesc_tGenericApp_epDesc;byteGenericApp_TaskID;byteGenericApp_TransID;/*typedefstruct{byteendPoint;byte*task_id;SimpleDescriptionFormat_t*simpleDesc;afNetworkLatencyReq_tlatencyReq;}endPointDesc_t;*/voidGenericApp_MessageMSGCB(afIncomingMSGPacket_t*pckt);voidGenericApp_SendTheMessage(void);//UINT16GenericApp_ProcessEvent(bytetask_id,UINT16events);staticvoidrxCB(uint8port,uint8event);//任務(wù)初始化函數(shù)voidGenericApp_Init(bytetask_id){

halUARTCfg_tuartConfig;

GenericApp_TaskID=task_id;GenericApp_TransID=0;GenericApp_epDesc.endPoint=GENERICAPP_ENDPOINT;GenericApp_epDesc.task_id=&GenericApp_TaskID;GenericApp_epDesc.simpleDesc=(SimpleDescriptionFormat_t*)&GenericApp_SimpleDesc;GenericApp_epDesc.latencyReq=noLatencyReqs;afRegister(&GenericApp_epDesc);

uartConfig.configured=TRUE;uartConfig.baudRate=HAL_UART_BR_115200;uartConfig.flowControl=FALSE;uartConfig.callBackFunc=rxCB;HalUARTOpen(0,&uartConfig);//串口初始化}//事件處理函數(shù)UINT16GenericApp_ProcessEvent(bytetask_id,UINT16events){return0;//本實(shí)驗(yàn)沒有進(jìn)行事件處理}staticvoidrxCB(uint8port,uint8event){unsignedcharuartbuf[128]="";HalUARTRead(0,uartbuf,16);//調(diào)用函數(shù)，從串口讀取數(shù)據(jù)并將其放在uartbuf數(shù)組中

if(osal_memcmp(uartbuf,"",16))//使用osal_memcmp()判斷接收到的數(shù)據(jù)是否是“”,返回TRUE，執(zhí)行HalUARTWrite()函數(shù)

{HalUARTWrite(0,uartbuf,16);//調(diào)用函數(shù)將接收到的字符輸出到串口

}}//ZigBee協(xié)議棧使用條件編譯，在GenericApp-Coordinator工程上右鍵單擊，options/C/C++Compiler在Definedsymbols:下拉框中添加HAL_UART=TRUE,點(diǎn)擊OK即可。二、ZigBee協(xié)議棧串口應(yīng)用擴(kuò)展實(shí)驗(yàn)實(shí)驗(yàn)課題:ZigBee協(xié)議棧串口應(yīng)用擴(kuò)展實(shí)驗(yàn)實(shí)驗(yàn)?zāi)康模豪么谑瞻l(fā)數(shù)據(jù)實(shí)驗(yàn)原理：協(xié)調(diào)器建立ZigBee無線網(wǎng)絡(luò)，終端節(jié)點(diǎn)自動(dòng)加入該網(wǎng)絡(luò)中，然后終端節(jié)點(diǎn)周期性地向協(xié)調(diào)器發(fā)送字符串“EndDevice”，協(xié)調(diào)器收到該字符串后，通過串口將其輸出到用戶PC機(jī)。EndDeviceEndDeviceZigBee網(wǎng)絡(luò)EndDeviceCoordinatorRS232PC機(jī)Coordinator.c#include"OSAL.h"#include"AF.h"#include"ZDApp.h"#include"ZDObject.h"#include"ZDProfile.h"#include<String.h>#include"Coordinator.h"#include"DebugTrace.h"#if!defined(WIN32)#include"OnBoard.h"#endif#include"hal_lcd.h"#include"hal_led.h"#include"hal_key.h"#include"hal_uart.h"constcId_tGenericApp_ClusterList[GENERICAPP_MAX_CLUSTERS]={GENERICAPP_CLUSTERID};constSimpleDescriptionFormat_tGenericApp_SimpleDesc={GENERICAPP_ENDPOINT,GENERICAPP_PROFID,GENERICAPP_DEVICEID,GENERICAPP_DEVICE_VERSION,GENERICAPP_FLAGS,GENERICAPP_MAX_CLUSTERS,(cId_t*)GenericApp_ClusterList,0,(cId_t*)NULL};endPointDesc_tGenericApp_epDesc;byteGenericApp_TaskID;byteGenericApp_TransID;//unsignedcharuartbuf[128];//將這一行注釋掉/*typedefstruct{byteendPoint;byte*task_id;SimpleDescriptionFormat_t*simpleDesc;afNetworkLatencyReq_tlatencyReq;}endPointDesc_t;*/voidGenericApp_MessageMSGCB(afIncomingMSGPacket_t*pckt);voidGenericApp_SendTheMessage(void);//staticvoidrxCB(uint8port,uint8event);//將這一行注釋掉//任務(wù)初始化函數(shù)voidGenericApp_Init(bytetask_id){halUARTCfg_tuartConfig;

GenericApp_TaskID=task_id;GenericApp_TransID=0;GenericApp_epDesc.endPoint=GENERICAPP_ENDPOINT;GenericApp_epDesc.task_id=&GenericApp_TaskID;GenericApp_epDesc.simpleDesc=(SimpleDescriptionFormat_t*)&GenericApp_SimpleDesc;GenericApp_epDesc.latencyReq=noLatencyReqs;afRegister(&GenericApp_epDesc);

uartConfig.configured=TRUE;uartConfig.baudRate=HAL_UART_BR_115200;uartConfig.flowControl=FALSE;

uartConfig.callBackFunc=NULL;//置空，即無需回調(diào)函數(shù)

HalUARTOpen(0,&uartConfig);//串口初始化}//事件處理函數(shù)UINT16GenericApp_ProcessEvent(bytetask_id,UINT16events){afIncomingMSGPacket_t*MSGpkt;if(events&SYS_EVENT_MSG){MSGpkt=(afIncomingMSGPacket_t*)osal_msg_receive(GenericApp_TaskID);while(MSGpkt){switch(MSGpkt->hdr.event){caseAF_INCOMING_MSG_CMD:

GenericApp_MessageMSGCB(MSGpkt);//完成對(duì)接收數(shù)據(jù)的處理break;default:break;}

osal_msg_deallocate((uint8*)MSGpkt);MSGpkt=(afIncomingMSGPacket_t*)osal_msg_receive(GenericApp_TaskID);}return(events^SYS_EVENT_MSG);}return0;}//當(dāng)協(xié)調(diào)器收到終端節(jié)點(diǎn)發(fā)送來的數(shù)據(jù)后，首先使用osal_msg_receive()函數(shù)，從消息隊(duì)列接收到消息，然后調(diào)用GenericApp_//MessageMSGCB()函數(shù)中將接收到的數(shù)據(jù)通過串口發(fā)送給PC機(jī)voidGenericApp_MessageMSGCB(afIncomingMSGPacket_t*pkt){unsignedcharbuffer[10]="";switch(pkt->clusterId){caseGENERICAPP_CLUSTERID:osal_memcpy(buffer,pkt->cmd.Data,10);HalUARTWrite(0,buffer,10);break;}}//使用osal_memcpy()函數(shù)，將接收到的數(shù)據(jù)拷貝到buffer數(shù)組中，然后就可以將該數(shù)據(jù)通過串口發(fā)送給PC機(jī)EndDevice.c

Osal_start_timerEx()函數(shù)原型如下：

調(diào)用uint8osal_start_timerEx(uint8taskID,uint16event_id,uint16timeout_value)

周期性發(fā)送（任務(wù)，事件，時(shí)間）#include"OSAL.h"#include"AF.h"#include"ZDApp.h"#include"ZDObject.h"#include"ZDProfile.h"#include<String.h>#include"Coordinator.h"http://使用該頭文件的宏定義#include"DebugTrace.h"#if!defined(WIN32)#include"OnBoard.h"#endif#include"hal_lcd.h"#include"hal_led.h"#include"hal_key.h"#include"hal_uart.h"#defineSEND_DATA_EVENT0x01constcId_tGenericApp_ClusterList[GENERICAPP_MAX_CLUSTERS]={GENERICAPP_CLUSTERID};//簡(jiǎn)單設(shè)備描述符結(jié)構(gòu)體常量constSimpleDescriptionFormat_tGenericApp_SimpleDesc={GENERICAPP_ENDPOINT,GENERICAPP_PROFID,GENERICAPP_DEVICEID,GENERICAPP_DEVICE_VERSION,GENERICAPP_FLAGS,0,(cId_t*)NULL,GENERICAPP_MAX_CLUSTERS,(cId_t*)GenericApp_ClusterList

};//初始化端口描述符endPointDesc_tGenericApp_epDesc;//簡(jiǎn)單節(jié)點(diǎn)描述符byteGenericApp_TaskID;//任務(wù)優(yōu)先級(jí)byteGenericApp_TransID;//數(shù)據(jù)發(fā)送序列號(hào)devStates_tGenericApp_NwkState;//節(jié)點(diǎn)狀態(tài)保存變量枚舉型記錄設(shè)備狀態(tài)//定義結(jié)構(gòu)體/*typedefstruct{byteendPoint;byte*task_id;SimpleDescriptionFormat_t*simpleDesc;afNetworkLatencyReq_tlatencyReq;}endPointDesc_t;*///聲明函數(shù)voidGenericApp_MessageMSGCB(afIncomingMSGPacket_t*pckt);voidGenericApp_SendTheMessage(void);int8readTemp(void);/定義任務(wù)初始化函數(shù)voidGenericApp_Init(bytetask_id){GenericApp_TaskID=task_id;GenericApp_TransID=0;//累加數(shù)據(jù)發(fā)送序列號(hào)，可用于計(jì)算丟包率

GenericApp_NwkState=DEV_INIT;//設(shè)備狀態(tài)初始化為DEV_INIT表示該節(jié)點(diǎn)沒有連接到ZigBee網(wǎng)絡(luò)

GenericApp_epDesc.endPoint=GENERICAPP_ENDPOINT;GenericApp_epDesc.task_id=&GenericApp_TaskID;GenericApp_epDesc.simpleDesc=(SimpleDescriptionFormat_t*)&GenericApp_SimpleDesc;GenericApp_epDesc.latencyReq=noLatencyReqs;afRegister(&GenericApp_epDesc);//節(jié)點(diǎn)描述符注冊(cè)}//以下是件處理函數(shù)UINT16GenericApp_ProcessEvent(bytetask_id,UINT16events){afIncomingMSGPacket_t*MSGpkt;if(events&SYS_EVENT_MSG){MSGpkt=(afIncomingMSGPacket_t*)osal_msg_receive(GenericApp_TaskID);while(MSGpkt){switch(MSGpkt->hdr.event){/*caseAF_INCOMING_MSG_CMD:GenericApp_MessageMSGCB(MSGpkt);break;*/caseZDO_STATE_CHANGE:GenericApp_NwkState=(devStates_t)(MSGpkt->hdr.status);

if(GenericApp_NwkState==DEV_END_DEVICE)//對(duì)節(jié)點(diǎn)設(shè)備類型進(jìn)行判斷是否是終端節(jié)點(diǎn)DEV_END_DEVICE

{

osal_set_event(GenericApp_TaskID,SEND_DATA_EVENT);}break;default:break;}//如果事件SEND_DATA_EVENT發(fā)生，則events&SEND_DATA_EVENT非零，條件成立則執(zhí)行GenericApp_SendTheMessage()//函數(shù)，向協(xié)調(diào)器發(fā)送數(shù)據(jù)，發(fā)送完數(shù)據(jù)后再定時(shí)1s,同時(shí)清除SEND_DATA_EVENT事件。

osal_msg_deallocate((uint8*)MSGpkt);//釋放消息在堆中的內(nèi)存

MSGpkt=(afIncomingMSGPacket_t*)osal_msg_receive(GenericApp_TaskID);}return(events^SYS_EVENT_MSG);}

if(events&SEND_DATA_EVENT){GenericApp_SendTheMessage();

osal_start_timerEx(GenericApp_TaskID,SEND_DATA_EVENT,