AT CMD In AP mode can not send UDP packets

[webrtcccccc]

Dear newracom sir,

I use the AT CMD to enter the AP mode, but in AP mode it cannot be used to send UDP packets, the AT CMD is as follows.

AT
SEND: AT
RECV: OK

AT+WCOUNTRY="US"
SEND: AT+WCOUNTRY="US"
RECV: OK

AT+WSOFTAP=906,"MyWiFi","wpa2-psk","MyPassword"
SEND: AT+WSOFTAP=906,"MyWiFi","wpa2-psk","MyPassword"
RECV: OK

AT+WIPADDR="192.168.0.215","255.255.0.0","192.168.0.2"
SEND: AT+WIPADDR="192.168.0.215","255.255.0.0","192.168.0.1"
RECV: OK

AT+SOPEN="UDP",1000
SEND: AT+SOPEN="UDP",1000
RECV: +SOPEN:0
RECV: OK

AT+SSEND=0,"192.168.0.215",1000,10
SEND: AT+SSEND=0,"192.168.0.215",1000,10
RECV: OK

1234567890
SEND: DATA 0 10

RECV: +SEVENT:"SEND_IDLE",0,0

=========================================
But in STA mode, it can send UDP packets normally.

AT+WCOUNTRY="US"
SEND: AT+WCOUNTRY="US"
RECV: OK

AT+WSCAN
SEND: AT+WSCAN
RECV: +WSCAN:"2c:3b:70:00:00:12",915.0,-10,"[WPA2-PSK-CCMP][ESS]","MyWiFi"
RECV: OK

AT+WCONN="MyWiFi","wpa2","MyPassword"
SEND: AT+WCONN="MyWiFi","wpa2","MyPassword"
RECV: OK

AT+WIPADDR="192.168.0.215","255.255.0.0","192.168.0.1"
SEND: AT+WIPADDR="192.168.0.215","255.255.0.0","192.168.0.1"
RECV: OK

AT+SOPEN="UDP",1000
SEND: AT+SOPEN="UDP",1000
RECV: +SOPEN:0
RECV: OK

AT+SSEND=0,"192.168.0.215",1000,10
SEND: AT+SSEND=0,"192.168.0.215",1000,10
RECV: OK

0123456789
SEND: DATA 0 10

RECV: +RXD:0,10

[joej357]

webrtcccccc, are you using the AT-CMD Test Tool or pushing commands manually?

I am able to replicate a similar issue when using the Test Tool.

Steps:

1. Start SoftAP and DHCPS
2. Connect client to network and assign IP via DHCP

Resulting in -
(SoftAP) Send: AT+WIPADDR?
RECV: +WIPADDR: "192.168.50.1","255.255.255.0","192.168.50.1"

(Client) Send: AT+WIPADDR?
RECV: +WIPADDR: "192.168.50.2","255.255.255.0","192.168.50.1"

3. Open UDP socket on each side both with local port 1000
4. Attempt AT+SSEND (Continuous random data transfer) from SoftAP to Client with Socket ID 1, UDP, Repote IP = 192.168.50.2, Remote Port = 1000, Size = 256, Time = 10, Random Alphanumeric.

But, when I start the send, the Serial Monitor shows:
AT+SSEND=1,"192.168.200.1",8888,256

Which is not the correct Remote IP or Remote Port, and this incorrect IP and Port propagate through each attempted 256 Byte Transmission, resulting in the same SEND_IDLE. However, if I:

5. Use the AT+SSEND Command with the word "HELLO" it properly shows:
   "HELLOAT+SSEND=1,"192.168.50.2",1000,5"
   and is received by the client.

After successfully sending the "HELLO" I can then use the AT+SSEND (Continuous random data transfer) without issue from both Client and SoftAP sides.

Overall, I have manage to send and receive UDP packets on a two-way Client/SoftAP connection, but it seems to be a bit finicky. And my issue seems to stem from using the AT+SSEND (Continuous random data transfer) tool within the AT-CMD Test Tool v1.3.0 so we may be experiencing separate problems.

[webrtcccccc]

Thanks for the reply. I use the raspberry raspi-atcmd-cli app to test AT CMD.
https://github.com/newracom/nrc7292_sdk/tree/master/package/standalone/sdk/apps/atcmd/host/raspi-atcmd-cli

[webrtcccccc]

My Scenario is below AT CMD:

--AP Side
AT
SEND: AT
RECV: OK

AT+WCOUNTRY="US"
SEND: AT+WCOUNTRY="US"
RECV: OK

AT+WSOFTAP=906,"MyWiFi","wpa2-psk","MyPassword"
SEND: AT+WSOFTAP=906,"MyWiFi","wpa2-psk","MyPassword"
RECV: OK

AT+WIPADDR="192.168.1.1","255.255.255.0","192.168.1.1"
SEND: AT+WIPADDR="192.168.1.1","255.255.255.0","192.168.1.1"
RECV: OK

AT+SOPEN="UDP",1000
SEND: AT+SOPEN="UDP",1000
RECV: +SOPEN:0
RECV: OK

AT+SSEND=0,"192.168.1.2",1000,10
SEND: AT+SSEND=0,"192.168.1.2",1000,10
RECV: OK

0123456789
SEND: DATA 0 10

RECV: +SEVENT:"SEND_IDLE",0,0
(Can not send to STA)

--STA side
AT+WCOUNTRY="US"
AT+WSCAN
AT+WCONN="MyWiFi","wpa2","MyPassword"
AT+WIPADDR="192.168.1.2","255.255.255.0","192.168.1.1"
AT+SOPEN="UDP",1000

(Can not receive from AP)