Hi,
I'm having an issue with an analogue output module (waveplayer firmware) where I am getting consistent behavior on channels 1 and 2, but transient behavior on channels 3 and 4. In the following code, I am attempting to set the channels to 1 volt and leave them there for 5 seconds. This works fine on channels 1 and 2, but channels 3 and 4 fall back to zero almost immediately after reaching the target voltage. Any help would be appreciated!
*Note: I have tried two different output modules and two different state machines with this code. Same behavior.
function MFC_test
global BpodSystem
AOut.OutputRange='0V:5V'; % min to max rang
AOut.SamplingRate = 1000; % set to 1000 Hz
AOut.TriggerMode= 'Master'; %Normal, Master, or Toggle
AOut.LoopDuration = 7200; %[7200 7200 7200 7200];
AOut.LoopMode = 'On'; %{'On';'On';'On';'On'};
%Create Analog Out object
AOut = BpodWavePlayer(BpodSystem.ModuleUSB.WavePlayer1);
AOut.setupSDCard() %Format SD card
%load voltages to WavePlayer
AOut.loadWaveform(1, ones(1, 1000)*(1.0));
for currentTrial = 1:5
disp(currentTrial);
LoadSerialMessages('WavePlayer1', {['P' 15 0],['X']});
sma = NewStateMachine();
sma = AddState(sma, 'Name', 'PlaySound1', ...
'Timer', 5,...
'StateChangeConditions', {'Tup', 'StopSound1'},...
'OutputActions', {'WavePlayer1', 1}); % Sends serial message 1 - 1.0V
sma = AddState(sma, 'Name', 'StopSound1', ...
'Timer', 1,...
'StateChangeConditions', {'Tup', 'exit'},...
'OutputActions', {'WavePlayer1', 2}); % Sends serial message 2 - 'X'
SendStateMatrix(sma); % Send state machine to the Bpod state machine device
RawEvents = RunStateMatrix; % Run the trial and return events
%--- This final block of code is necessary for the Bpod console's pause and stop buttons to work
HandlePauseCondition; % Checks to see if the protocol is paused. If so, waits until user resumes.
if BpodSystem.Status.BeingUsed == 0
return
end
end
AOut.stop()
clear AOut
disp('done')
