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CC3220SF-LAUNCHXL: UDP sl_RecvFrom API返回-11

Part Number: CC3220SF-LAUNCHXL
Other Parts Discussed in Thread: CC3220SF

两块CC3220SF,一块发,一块收。使用的是UDP协议。

在多次通断电测试中,经常会出现发端sl_SendTo显示发送成功(返回发送字节数),但是收端sl_RecvFrom返回-11的情况,导致后续通信无法进行。

重新上电两板,可能正常,也可能不正常。

想请问sl_RecvFrom都在什么情况下会返回-11。