getStatusReg.m
057403177fbchri-gen2

getStatusReg.m
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			function [StatReg,ERR] = getStatusReg(COMOPT,s)
			% Demande le registe de status de la carte (stand alone function)
			%
			% Output :
			% StatReg -> Renvoie le registre sous forme d'un string
			% ERR -> 0 : ok
			% 1 : TimeOut
			%

			ERR = 0;
			TimeOut = COMOPT.USART_TIMEOUT_SHORT;
			PacketSize = 8; % uint32 is sent on 8 (half) bytes

			flushinput(s); %Vide le buffer
			[~] = usartSendPacket(COMOPT.PC_MESSAGE_SEND_STATUS, [], COMOPT, s); %Demande le registre


			tmp = 0;
			while(TimeOut>0)
			BA = get(s,{'BytesAvailable'});
			if(BA{1}<PacketSize)
			pause(0.01);
			TimeOut = TimeOut-0.01; %tr駸 aproximatif
			else
			tmp = fread(s,1);
			if((tmp >= COMOPT.StartFrame) && (tmp-COMOPT.StartFrame == COMOPT.STM_MESSAGE_STATUS))
			tmp = fread(s,8);
			TimeOut = 0;
			else
			TimeOut = TimeOut-0.01; %tr駸 aproximatif
			end
			end
			end

			if(max(size(tmp))~=8)
			StatReg=[];
			ERR=1;
			return;
			end

			StatReg = dec2bin(2^28tmp(7) + 2^24tmp(8) + 2^20tmp(5) + 2^16tmp(6)+...
			2^12tmp(3) + 2^8tmp(4) + 2^4*tmp(1) + tmp(2),32);
			%78 56 34 12 because this corresponds to the data bytes 3 2 1 0.
			%StatReg = tmp;
			end