WIFI232-B2 User Manual
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/
102
The length is 8 bytes as below. (In HEX for example):
Name
Head
Baud Rate
Bit
CHK
Bytes
3
3
1
1
Description
Reduce
erroneous
3 bytes for one
baud rate vale.
High byte in the
front
Refer to
addendum
The check sum
of the font 4
bytes. Ignore
the carry
Example 1
55 AA 55
01 C2 00
83
46
Example 2
55 AA 55
00 25 80
83
28
Table 8 RFC2217 Protocol
Addendum:
Bit
Note
Value
Description
1:0
Choose data bit
00
5 bits
01
6 bits
10
7 bits
11
8 bits
2
stop bit
0
1 bit stop bit
1
2 bit stop bit
3
parity bit enable
0
disable parity bit
1
enable parity bit
5:4
parity bit type
00
ODD parity
01
EVEM parity
10
Mark 1
11
Clear
7:6
NC
00
set 0
Table 9 Addendum of RFC2217 Protocol
4.8.10
Parameters Configuration
WIFI232 module supports two methods to configuration parameters: Web
Accessing and AT+ Instruction set.
Web accessing means user can configure parameters through built-in webpage.
When WIFI232 module connected to wireless network, parameter configuration is done
on a PC connected to the same wireless network. AT+ Instruction set configuration
means user configure parameters through serial interface command. Refer to “AT+
Instruction set” chapter for more detail.
4.8.11
Firmware Upgrade
WIFI232 module supports firmware upgrade online
