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
