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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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