(0x55) Utility Frames
This section describes a wide range of command functionality that works on a system-wide level under the Primary Header 0x55.
( PH:0x55 SH:0x00 ) - Reset Command
Overview
The Reset command is sent from the Host to the Module, and prompts the Module to reboot.
Payload
The command has no payload.
Effect on Receipt
The Module reboots.
Allowed Context
All Contexts.
Sent By Host/Module
Host.
( PH:0x55 SH:0x02 ) - Module Info Request Command
Overview
The Module Info Request command is sent from the Host to the Module to query the Module’s version and application type.
Payload
The command has no payload.
Effect on Receipt
The Module will respond with a Module Info Response command.
Allowed Context
All Contexts.
Sent By Host/Module
Host.
( PH:0x55, SH:0x03 ) - Module Info Response Command
Overview
The Module Info Response command is sent from the Module to the Host in response to a Module Info Request command.
Payload
Byte Index | Field Name | Notes |
|---|---|---|
0 | Major Firmware Version | |
1 | Minor Firmware Version | |
2 | Build Firmware Version | |
3,4 | Application Information | Indicates the serial protocol spoken by the application, 16-bit Enumeration:
|
5..12 | EUI64 | Extended Unique Identifier, 64 bits in length, LSB First |
13 | Hardware Version | 0x00 = Hardware Version Unknown |
14 | Bootloader Type | 0x00 = EM35x Standalone Bootloader 0x01 = EM35x Application Bootloader 0x02 = Gecko Standalone Bootloader 0x03 = Gecko Application Bootloader (XMODEM Transfer) 0x04 = Gecko Application Bootloader (Serial Protocol Transfer) 0x05 - 0xFE = Reserved 0xFF = No Bootloader |
Effect on Receipt
None.
Allowed Context
Same context as the request.
Sent By Host/Module
Module.