/usr/share/psychtoolbox-3/PsychHardware/PR655Toolbox/PR655rawspd.m is in psychtoolbox-3-common 3.0.11.20131230.dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | function readStr = PR655rawspd(timeout)
% readStr = PR655rawspd(timeout)
%
% Measure spd and return string.
%
% 01/16/09 tbc Adapted from PR650Toolbox for use with PR655
%
global g_serialPort;
% Check for initialization
if isempty(g_serialPort)
error('Meter has not been initialized.');
end
% Flushing buffers.
% fprintf('Flush\n');
dumpStr = '0';
while ~isempty(dumpStr)
dumpStr = PR655read;
end
% Make measurement
% fprintf('Measure\n');
PR655write('M5')
StartTime = GetSecs;
waited = GetSecs-StartTime;
inStr = [];
while isempty(inStr) && waited < timeout
inStr = PR655read;
waited = GetSecs-StartTime;
end
if waited == timeout
error('Unable to get reading from radiometer');
else
readStr = inStr;
end
return
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