b&t RTL8720D - ATPR-Receive Data

中山市博安通通信技术有限公司
ZHONGSHAN B&T TECHNOLOGYCo., Ltd
Page 19 of 34
Code
2: <Buffer Size> exceeds ATPT limit
3: con_id not found
4: <dst_ip> or <dst_port> error for udp server case
5: sendto() error for udp server
6: sendto() error for udp client
7: TCP server should send data to the seed (server needs to send data to the client, not
directly to
server)
8: write error for tcp client/server
Note
If it is a TCP server, you cannot directly read and write data from the con_id of the
server, it must be for his connection
child con_id to read and write data
Example
//TCP server read data
# ATPN=B&T-1,test123456
[ATPN] OK
# ATPS=0,4004
#
[ATPS] OK
[ATPS] con_id=1
// when the client connects
[ATPS] A client connected to server[1]
con_id:5,seed,tcp,address:192.168.20.112,port:52581,socket:2
#ATPI
con_id:1,server,tcp,address:192.168.20.115,port:4004,socket:0
con_id:3,seed,tcp,address:192.168.20.112,port:52451,socket:-1
con_id:4,seed,tcp,address:192.168.20.112,port:52575,socket:-1
con_id:5,seed,tcp,address:192.168.20.112,port:52581,socket:2
con_id:2,server,udp,address:192.168.20.115,port:4005,socket:1
[ATPI] OK
# ATPT=6,5:123456 //Send data
#
[ATPT] OK,5
4.5
ATPR-receive data
ATPR =<con_id>,<Buffer Size>
Description
Receive data
Response
Success
[ATPR] OK ,<data size>,<con_id>[,<dst_ip>,<dst_port>]:<data>
Fail
[ATPR] ERROR:<error_no>
Parameter
con_id: 1~9
Buffer Size: bufter size (temporarily disabled)