什么是c++中串口数据读取的回调函数?下面是Matlab中的一个例子

what is Callback function for serial port data reading in c++? Here is an example in Matlab

本文关键字：Matlab 一个 数据 串口 c++ 读取 回调 什么 函数      更新时间：2023-10-16

有c++的例子或参考吗?我们将如何在c++中基于什么目的进行串口编程?这是一个Matlab代码示例。如果我们将Matlab代码转换成c++，在c++编程中我们应该考虑什么?

 function DUT_callback(obj, event, DUT_port)
 persistent stored_data;
if isempty(stored_data)
stored_data = [];
end
if ~strcmp(DUT_port.status,'open')
return;
end
if ~DUT_port.BytesAvailable
return;
end
try
new_data = fread(DUT_port,DUT_port.BytesAvailable);
catch exception
fprintf('ERROR: Failed to read from DUT port.  Shutting down.n');
cleanup();
return;
 end
 data_array = [stored_data;new_data];
 packet.NewPacket = 1;
 while packet.NewPacket == 1
[packet,data_array] = parse_serial_data(data_array);
% Report bad checksum if appropriate
if packet.BadChecksum
end
% If packet was received, do stuff with it
if packet.NewPacket == 1
    % HANDLE RAW GYRO DATA PACKET
    if packet.Address == 86
        % Extract the gyro data
        gyro_x = typecast( flipud(uint8(packet.data(1:2))), 'int16' );
        gyro_y = typecast( flipud(uint8(packet.data(3:4))), 'int16' );
        gyro_z = typecast( flipud(uint8(packet.data(5:6))), 'int16' );
        got_gyro_data = 1;
   %            fprintf('%dt%dt%dn',gyro_x,gyro_y,gyro_z);
    end 
    % HANDLE TEMPERATURE DATA PACKET
    if packet.Address == 118
temperature = typecast( flipud(uint8(packet.data(1:4))), 'single'    );
        got_temperature_data = 1;
  %     fprintf('%3.2fn',temperature);
    end
    % If we received gyro and temperature data, log it to
    % the workspace if logging is enabled.
    if got_temperature_data && got_gyro_data
        got_temperature_data = 0;
        got_gyro_data = 0;
  if GDATA.logging_data == 1 && GDATA.selected_DUT > 0
    if GDATA.DUT_samples_collected < GDATA.MAX_SAMPLES
    GDATA.DUT_samples_collected = GDATA.DUT_samples_collected + 1;
     end  end end end

这取决于你要在哪个操作系统上运行你的程序。

微软在串行接口上有很好的文档。

http://msdn.microsoft.com/en-us/library/ff802693.aspx

Linux或其他你会更感兴趣的操作系统:

http://www.gnu.org/software/libc/manual/html_mono/libc.html Low_002dLevel-Terminal-Interface

您可以在两组文档中找到示例。

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