matlab GUI串口数据接收发送，包括三维空间点线实时更新显示

function varargout = serial_communication2(varargin) gui_Singleton = 1; gui_State = struct( ... 'gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @serial_communication2_OpeningFcn, ... 'gui_OutputFcn', @serial_communication2_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end function serial_communication2_OpeningFcn(hObject, eventdata, handles, varargin) handles.output = hObject; warning('off'); javaFrame = get(hObject, 'JavaFrame'); %javaFrame.setFigureIcon(javax.swing.ImageIcon('icon.jpg')); %% 初始化参数 hasData = false; %表征串口是否接收到数据 isShow = false; %表征是否正在进行数据显示，即是否正在执行函数dataDisp isStopDisp = false; %表征是否按下了【停止显示】按钮 isHexDisp = false; %表征是否勾选了【十六进制显示】 isHexSend = false; %表征是否勾选了【十六进制发送】 numRec = 0; %接收字符计数 numSend = 0; %发送字符计数 strRec = ''; %已接收的字符串 %% 将上述参数作为应用数据，存入窗口对象内 setappdata(hObject, 'hasData', hasData); setappdata(hObject, 'strRec', strRec); setappdata(hObject, 'numRec', numRec); setappdata(hObject, 'numSend', numSend); setappdata(hObject, 'isShow', isShow); setappdata(hObject, 'isStopDisp', isStopDisp); setappdata(hObject, 'isHexDisp', isHexDisp); setappdata(hObject, 'isHexSend', isHexSend); guidata(hObject, handles); function varargout = serial_communication2_OutputFcn(hObject, eventdata, handles) varargout{1} = handles.output; function com_Callback(hObject, eventdata, handles) % 获取用户选择的串口 selectedPort = get(hObject, 'Value'); % 获取下拉菜单选中的索引 availablePorts = get(hObject, 'String'); % 获取下拉菜单的所有选项 disp(['用户选择的串口是: ', availablePorts{selectedPort}]); % 根据用户选择执行操作 if ~isempty(availablePorts{selectedPort}) disp(['尝试连接串口: ', availablePorts{selectedPort}]); else disp('未选择有效的串口。'); end function com_CreateFcn(hObject, eventdata, handles) if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function rate_Callback(hObject, eventdata, handles) function rate_CreateFcn(hObject, eventdata, handles) if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function jiaoyan_Callback(hObject, eventdata, handles) function jiaoyan_CreateFcn(hObject, eventdata, handles) if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function data_bits_Callback(hObject, eventdata, handles) function data_bits_CreateFcn(hObject, eventdata, handles) if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function stop_bits_Callback(hObject, eventdata, handles) function stop_bits_CreateFcn(hObject, eventdata, handles) if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function start_serial_Callback(hObject, eventdata, handles) % 【打开/关闭串口】按钮的回调函数 % 打开串口，并初始化相关参数 %% 若按下【打开串口】按钮，打开串口 if get(hObject, 'value') %% 获取串口的端口名 % 获取下拉菜单的所有选项 options = get(handles.com, 'String'); % 获取下拉菜单内容 selectedIndex = get(handles.com, 'Value'); % 根据索引获取用户选择的串口名称 com_n = options{selectedIndex} % sprintf('com%d', get(handles.com, 'string')) % com_n = 'COM21'; %% 获取波特率 rates = [300 600 1200 2400 4800 9600 19200 38400 43000 56000 57600 115200]; baud_rate = rates(get(handles.rate, 'value')); %% 获取校验位设置 switch get(handles.jiaoyan, 'value') case 1 jiaoyan = 'none'; case 2 jiaoyan = 'odd'; case 3 jiaoyan = 'even'; end %% 获取数据位个数 data_bits = 5 + get(handles.data_bits, 'value'); %% 获取停止位个数 stop_bits = get(handles.stop_bits, 'value'); %% 创建串口对象 scom = serial(com_n); %% 配置串口属性，指定其回调函数 set(scom, 'BaudRate', baud_rate, 'Parity', jiaoyan, 'DataBits',... data_bits, 'StopBits', stop_bits, 'BytesAvailableFcnCount', 10,... 'BytesAvailableFcnMode', 'byte', 'BytesAvailableFcn', {@bytes, handles},... 'TimerPeriod', 0.05, 'timerfcn', {@dataDisp, handles}); %% 将串口对象的句柄作为用户数据，存入窗口对象 set(handles.figure1, 'UserData', scom); %% 尝试打开串口 try fopen(scom); %打开串口 fprintf('ceshi_dakaichuankou\n'); catch % 若串口打开失败，提示“串口不可获得！” msgbox('串口不可获得！'); set(hObject, 'value', 0); %弹起本按钮 return; end %% 打开串口后，允许串口发送数据，清空接收显示区，点亮串口状态指示灯， %% 并更改本按钮文本为“关闭串口” set(handles.period_send, 'Enable', 'on'); %启用【自动发送】按钮 set(handles.manual_send, 'Enable', 'on'); %启用【手动发送】按钮 set(handles.xianshi, 'string', ''); %清空接收显示区 %set(handles.activex1, 'value', 1); %点亮串口状态指示灯 set(hObject, 'String', '关闭串口'); %设置本按钮文本为“关闭串口” else %若关闭串口 %% 停止并删除定时器 t = timerfind; if ~isempty(t) stop(t); delete(t); end %% 停止并删除串口对象 scoms = instrfind; stopasync(scoms); fclose(scoms); delete(scoms); %% 禁用【自动发送】和【手动发送】按钮，熄灭串口状态指示灯 set(handles.period_send, 'Enable', 'off', 'value', 0); %禁用【自动发送】按钮 set(handles.manual_send, 'Enable', 'off'); %禁用【手动发送】按钮 set(hObject, 'String', '打开串口'); %设置本按钮文本为“关闭串口” %set(handles.activex1, 'value', 0); %熄灭串口状态指示灯 end function dataDisp(obj, event, handles) % 串口的TimerFcn回调函数 % 串口数据显示 %% 获取参数 hasData = getappdata(handles.figure1, 'hasData'); %串口是否收到数据 strRec = getappdata(handles.figure1, 'strRec'); %串口数据的字符串形式，定时显示该数据 numRec = getappdata(handles.figure1, 'numRec'); %串口接收到的数据个数 %% 若串口没有接收到数据，先尝试接收串口数据 if ~hasData bytes(obj, event, handles); end %% 若串口有数据，显示串口数据 if hasData %% 给数据显示模块加互斥锁 %% 在执行显示数据模块时，不接受串口数据，即不执行BytesAvailableFcn回调函数 setappdata(handles.figure1, 'isShow', true); %% 若要显示的字符串长度超过10000，清空显示区 if length(strRec) > 1000 strRec = ''; setappdata(handles.figure1, 'strRec', strRec); end %% 显示数据 set(handles.xianshi, 'string', strRec); %% 更新接收计数 set(handles.rec,'string', numRec); %% 更新hasData标志，表明串口数据已