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function readStr = PR670rawspd(timeout)
% PR670rawspd - Takes an spd measurement and returns the results.
%
% Syntax:
% readStr = PR655rawspd(timeout)
%
% Input:
% timeout (scalar) - Timeout period in seconds.
%
% Output:
% readStr (1xN char) - The raw character array resulting from a
% measurement.
% Flush the buffers.
dumpStr = '0';
while ~isempty(dumpStr)
dumpStr = PR670read;
end
% Make measurement
PR670write('M5')
StartTime = GetSecs;
waited = GetSecs - StartTime;
inStr = [];
while isempty(inStr) && waited < timeout
inStr = PR670read;
waited = GetSecs - StartTime;
end
if waited >= timeout
error('Unable to get reading from radiometer');
else
readStr = inStr;
end
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