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AT command set
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16
Format
Query
AT+UARTN<CR>
<CR><LF>+OK=<baudrate,data_bits,stop_bit,parity,flowctrl ><CR><LF>
Set
AT+UARTN=<baudrate,data_bits,stop_bit,parity,flowctrl ><CR><LF>
<CR><LF>+OK<CR><LF>
Parameters
baudrate
600~921.6K(bps)
data_bits:7,8
stop_bits:1,2
parity:
NONE
EVEN
ODD
flowctrl
NFC: none
FCR: software control flow XON,XOFF
FCH: hardware control flow(only RS232 and UART TTL support)
E.g.AT+UART1=115200,8,1,NONE,NFC
2.5.16. AT+UARTTLN
Function
Query/set UART packaging mechanism of PortN
Format
Query
AT+ UARTTLN<CR>
<CR><LF>+OK=<time,length><CR><LF>
Set
AT+ UARTTLN=<time,length> <CR>
<CR><LF>+OK<CR><LF>
Parameters
time: Byte interval between packets,0~255 ms.
length: Maximum length of a packet,0~1460 byte. If the interval is not reached and the received packet length
reaches the maximum, the packet is packed and sent.
E.g.AT+UARTTL1=0,0
2.5.17. AT+RFCENN
Function
Query/set RFC2217 baud rate synchronization of PortN