Документация

function osc_top_u_osc_filter1x(obj)
% Automatically generated MATLAB(R) callback function.

% Copyright 2010 The MathWorks, Inc.
% $Revision $

% Initialize state of callback function.
if (strcmp(obj.simstatus,'Init'))
    disp('Initializing states ...');

    % Store port information in userdata
    % The name strings of ports that sends data from HDL simulator to
    % MATLAB callback function
    obj.userdata.FromHdlPortNames = fields(obj.portinfo.out);
    obj.userdata.FromHdlPortNum   = length(fields(obj.portinfo.out));

    % The name strings of ports that sends data from MATLAB callback
    % function to HDL simulator
    obj.userdata.ToHdlPortNames   = fields(obj.portinfo.in);
    obj.userdata.ToHdlPortNum     = length(fields(obj.portinfo.in));

    % Initialize state
    obj.userdata.State = 0;
end

% Obj.tnow is the current HDL simulation time specified in seconds
disp(['Callback function is executed at time ' num2str(obj.tnow)]);

if(obj.userdata.FromHdlPortNum > 0)
    % The name of the first input port
    portName  = obj.userdata.FromHdlPortNames{1};
    disp(['Reading input port ' portName]);
    % Convert the multi-valued logic value of the first port to decimal
    portValueDec  = mvl2dec( ...
        obj.portvalues.(portName), ...      % Multi-valued logic of the first port
        obj.portinfo.out.(portName).size);  %#ok<NASGU> % Bit width
    % Then perform any necessary operations on this value passed by HDL simulator.
    % ...
    % Optionally, you can translate the port value into fixed point object,
    % e.g.
    % myfiobj = fi(portValueDec,1, 16, 4);
end

% Update your state(s). In the following example, we use this internal
% state to implement a one-bit counter
obj.userdata.State = ~obj.userdata.State;

if(obj.userdata.ToHdlPortNum > 0)
    % The name of the first output port in HDL
    portName = obj.userdata.ToHdlPortNames{1};
    disp(['Writing output port ' portName]);

    % Assign the first port value to internal state obj.userdata.State.
    % Before assignment, convert decimal value to multi-valued logic.
    % You can change obj.userdata.State to another other valid decimal values.
    obj.portvalues.(portName) = dec2mvl(...
        obj.userdata.State, ...
        obj.portinfo.in.(portName).size);

    % Operate on other out ports, if there are any.
    % ...
end