KTCPCLOSE or KTCPDEL?

IoT Modules Legacy HL Series
1

Dear All,

I’m using the HL8548 now. Will change it to RC series soon.
But anyway, I have communicate with the HL8548 by serial.
All of sequences are working well.

When I try to connect AT+KTCPCNX, sometimes return the message KTCP_NOTIF.
-It has various reason to get a message KTCP_NOTIF. Network error(0), TCP disconnection(4), TCP connectioon error(5), etc…
At that time, I tried to close the session by AT+KTCPCLOSE. But it has return the message “ERROR”.

Which one is right when got KTCP_NOTIF?
KTCPCLOSE or KTCPDEL?

2

does it work if you connect again?

3

I may tried but not worked to send the message KTCPCNX again.
Is it possible? I’ll try again for clearence.
Thanks jyijyi.

4

if not work, probably you need to delete it and re-enter the context