myserial.m

MATLAB 程序,单片机采样后将数据由RS232上传到PC, 由MATLAB截获并画图, 实现示波器功能

global pre
global counter
pre=0;
g=serial('com1');
g.inputbuffer=4096;
g.timeout=0.6;
g.baudrate=115200;
g.parity='none';
g.stopbits=1;
g.terminator='LF';
g.flowcontrol='hardware';
g.bytesavailablefcnmode='byte';
g.bytesavailablefcncount=50;
g.bytesavailablefcn=@instrcallback;
fopen(g);
fprintf('Port Opened');