Commands And Responses In Slip Format - Magtek mDynamo Programmer's Manual

3 - Data Formats

3.2.2 Commands and Responses In SLIP Format

When the device and host are using SLIP format for commands and responses, the host software should
wrap all commands in the following block:
Table 3-3 - SLIP Format Command Request Wrapper
Bit 7
Byte 0 SLIP frame delimiter = 0xC0
Byte 1 Message Type = 0x05 Command Request
Bytes 2..3 Length of Command Request Message field, in big endian order
Bytes 4..n Command Request Message from Table 7-1 in section 7.1 About Commands
Byte n+1 SLIP frame delimiter = 0xC0
The device wraps all command responses in the following block:
Table 3-4 - SLIP Format Command Response Wrapper
Bit 7
Byte 0 SLIP frame delimiter = 0xC0
Message Type = 0x04 Command Response Normal, which indicates the payload contains
Byte 1
an uncompressed command response message.
Bytes 2..3 Length of Command Response Message field, in big endian order
Bytes 4..n Command Response Message from Table 7-2 in section 7.1 About Commands
Byte n+1 SLIP frame delimiter = 0xC0
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