在使用AT组件的SIM7600,配合kawaii mqtt或者是paho mqtt时,经常会打印出SIM组件出错的信息。会导致,mqtt连接失败或者发送失败
以下是出错信息,不定时会出现。
1、[E/at.skt.sim76] sim1 device socket (0) wait send result
timeout.
2、[E/at.skt.sim76] sim1 device receive size(5) data failed.
[E/at.skt.sim76] sim1 device receive size(60) data failed.
3、[E/at.skt.sim76] sim1 device socket (0) wait send result timeout.
4、[W/at.clnt] execute command (AT+CIPSEND=0,360) timeout (5000 ticks)!
5、[W/at.clnt] execute command (AT+CDNSGIP="link.rt-thread.org") timeout (5000 ticks)!
想请问各位,出现上述问题的原因是什么,需要从哪些方面入手排查?感谢