【SDK调用】如何快速操作无线通信设备的数据发送业务？

   本章节重点讲述WiMi-net无线自组网管理平台SDK调用中的第5个问题：如何快速操作 WiMi-net433MHz无线通信设备的数据发送业务？

1.查询发送状态

2. 以TCP发送数据报文

3. 以UDP发送数据报文

4. 以TCP/UDP发送数据报文

5.设置UDP发送等级

6.读取UDP发送等级

7. 测试例子程序

#include <stdio.h>

#include <stdlib.h>

#include"API-WiMinet.h"

int main( int argc, char*argv[] )

{

   char iRetVal;

   char * pBuffer;

   FILE * pFile;

   char   pFileName[1024];

   unsigned char iStatus;

   unsigned char iProgress;

   unsigned long dwSize;

   unsigned long dwTimerA;

   unsigned long dwTimerB;

   unsigned long dwTimerX;

   // COM port interface

   iRetVal = OpenWiMinetShell("COM3",115200, 0X01 );

   // Ethernet interface

   //iRetVal = OpenWiMinetShell("192.168.0.240",12580, 0X01 );

   // Validate the shell open interface

   if ( !iRetVal )

   {

      printf( "Open shellfailed!\r\n" );

      return 0X00;

   }

   // Query the TxStatus

   while ( 0X01 )

   {

      // Query the Tx status

      QueryTxMsgStatus( 0X00, ( char *)&iStatus );

      // Check if end of the Tx procedure

      if ( iStatus ==TXD_TASK_STATUS_JOB_WAITING )

      {

         break;

      }

      // Waiting the task is free

      printf( "." );

      // Release the control of the processor

      Sleep( 0X01 );     

   }

   // The input file name

   printf( "\r\nPlease input filename:" );

   // Clear the string

   memset( pFileName, 0X00, sizeof( pFileName ));

   // The input file name

   scanf("%s", pFileName );

   // Open the file

   pFile = fopen( pFileName, "rb" );

   // Validate the file pointer

   if ( !pFile )

   {

      printf( "Failed To OpenFile!\r\n" );

   }

   // Seek to the file end

   fseek( pFile, 0X00, SEEK_END );

   // Thefile size

   dwSize = ftell( pFile );

   // Seek to the file head

   fseek( pFile, 0X00, SEEK_SET );

   // allocate the buffer

   pBuffer = ( char * )malloc( dwSize );

   // Read this file contents

   fread( pBuffer, 0X01, dwSize, pFile );

   // Close this file

   fclose( pFile );

   // Send out this packet

   SendHiQoSMessage( 0X00, ( short )0XA117,pBuffer, dwSize );

   // delete this buffer

   free( pBuffer );

   // The initial time counter

   dwTimerA = GetTickCount();

   // The default Tx progress

   iProgress = 0XFF;

   // Query the TxStatus

   while ( 0X01 )

   {

      // Release the control of the processor

      Sleep( 0X01 );

      // Query the Tx status

      QueryTxMsgStatus( 0X00, ( char *)&iStatus );

      // Check if end of the Tx procedure

      if ( iStatus &TXD_TASK_STATUS_REPORTTABLE )

      {

         break;

      }

      // Compare the progress value

      if ( iStatus == iProgress )

      {

         continue;

      }

      // Current time counter

      dwTimerB = GetTickCount();

      // The offset timer

      dwTimerX = dwTimerB - dwTimerA;

      // Update the progress value

      iProgress = iStatus;

      // Current Tx progress

      printf( "%9lu ms -->%d%%\r\n", dwTimerX, iStatus );

   }

   // Query the Tx timer

   GetTxMessageTime( 0X00, &dwTimerX );

   // The task completed status

   switch ( iStatus )

   {

   case TXD_TASK_STATUS_END_SUCCESS:

      {

         printf( "\r\nTx CompletedSuccessfully,Time=%lu(ms)\r\n\r\n", dwTimerX );

      }

      break;

   case TXD_TASK_STATUS_END_FAILURE:

      {

         printf( "\r\nTx Completed WithError,Time=%lu(ms)\r\n\r\n", dwTimerX );

      }

      break;

   case TXD_TASK_STATUS_END_NOCRC32:

      {

         printf( "\r\nTx Completed WithoutCRC32,Time=%lu(ms)\r\n\r\n", dwTimerX );

      }

      break;

   default:

      {

         printf( "\r\nTx Completed WithUnknown Error,Time=%lu(ms)\r\n\r\n", dwTimerX );

      }

      break;

   }

   // Stop the shell

   StopWiMinetShell( 0X00 );

   // Exit this main program

   return 0X01;

}

8. 测试程序说明

程序基本的逻辑如下：

1. 查询发送队列，是否处于空闲状态，如果没有需要等待当前发送任务完成

2. 提示输入需要传输的文件名称

3. 读取文件的总长度

4. 分配相应长度的内存块

5. 将文件内容加载到内存块

6. 关闭文件

7. 将内存块中的内容提交给发送队列

8. 释放之前分配的内存块

9. 查询发送状态，打印发送时间和进度信息

10. 查询发送任务是否已经结束

11. 打印发送的结果信息