Extended AT Commands Manual Page 69 of 70 2009-06-25
15. DM COMMAND (DIAGNOSTIC MODE)
All the AT command set can be used at UART2 DM port with Async-HDLC format except the
periodic report command set such as RFINFO and ANTLVL. The DM command set has the
command/response structure in Async-HDLC format. The command/response packet format is
described in the following tables.
NOTE: The last character of the Request Field should be “0x0D”.
Table 15.88 Request packet
Field Length(bytes) Description
Command code 1 Cmd Code (0xC8)
Request field Variable ASCII Cmd (This field should finish with 0x0d)
Frame check 2 16-bit CRC
Ending flag 1 0x7E
Table 15.89 Response packet
Field Length(bytes) Description
Command code 1 Cmd Code(0xC8)
Length 2 Packet length
Response Filed Variable ASCII
Frame check 2 16-bit CRC
Ending flag 1 0x7E
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