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terrible error,problem,bad communication

1 次查看（过去 30 天）
anas qazaz
anas qazaz 2013-4-5
关闭： MATLAB Answer Bot 2021-8-20
hi,all i have problem with the following code
Matrix1=[852.5385 752.9496 568.286 ];
s=serial('com3','baudrate',9600);
set(s,'flowcontrol','none');
set(s,'parity','none');
set(s,'databit',8);
set(s,'stopbit',1);
fopen(s)
for i=1:length(Matrix1)
A=Matrix1(i) ;
fwrite(s,A,'int8')
pause(5)
end
when i send matrix1 my 8051 read and display data as follow:
852.5385 read and display it 01111000b 752.9496 read and display it 10000110b
i know i receive 8bit because i use int8 but can any one tell me what the relation between 852.5385 and 01111000b and relation between 752.9496 and 10000110b what that terrible error what occur please can any one explain relation between these values before i become crazy

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