matlab串口禁用bytesavailablefcn

Question

我在matlab上用串口读取stm32发送给电脑的数据，设置为缓冲区接收到32个字节就进入回调函数，但是弹出这个警告：The BytesAvailableFcn is being disabled. To enable the callback property either connect to the hardware with FOPEN or set the BytesAvailableFcn property.而且提示pause(5)这行代码有问题，不知道该怎么解决

clear;
clear s;
clc;

try
    s=serial('com5');
catch
    error('cant serial');
end
set(s,'BaudRate',115200,'ByteOrder','littleEndian','DataBits',8, ...
    'Parity','none','StopBits',1,'FlowControl','none');
set(s,'timeout',1);
s.inputbuffersize=10240000;   %设置串口接收缓冲区
s.OutputBufferSize=10240000;
s.BytesAvailableFcnMode = 'byte';
s.BytesAvailableFcnCount = 32;
s.BytesAvailableFcn  = @callback1;

fopen(s);

pause(5);
fclose(s);
delete(s);
clear s;
close all;

Answer 1

我觉得是你的回调函数存在问题，可能你回调函数中有一些判断条件不符合，导致每次接受串口数据就会出错