modules::protocol::RequestMsg Struct Reference

A request message - requests are being sent by the printer into the MMU.

#include <mmu2_protocol.h>

Public Member Functions
constexpr uint8_t	ComputeCRC8 () const
constexpr	RequestMsg (RequestMsgCodes code, uint8_t value)
constexpr	RequestMsg (RequestMsgCodes code, uint8_t address, uint16_t value)
constexpr uint8_t	CRC () const

Public Attributes
RequestMsgCodes	code
	code of the request message
uint8_t	value
	value of the request message or address of variable to read/write
uint16_t	value2
	in case or write messages - value to be written into the register
uint8_t	crc8

Constructor & Destructor Documentation

RequestMsg() [1/2]

constexpr modules::protocol::RequestMsg::RequestMsg ( RequestMsgCodes  code, uint8_t  value  )

inlineconstexpr

Parameters

code	of the request message
value	of the request message

RequestMsg() [2/2]

constexpr modules::protocol::RequestMsg::RequestMsg ( RequestMsgCodes  code, uint8_t  address, uint16_t  value  )

inlineconstexpr

Intended for write requests

Parameters

code	of the request message ('W')
address	of the register
value	to write into the register

Member Data Documentation

crc8

uint8_t modules::protocol::RequestMsg::crc8

CRC8 check - please note we abuse this byte for CRC of ResponseMsgs as well. The crc8 byte itself is not added into the CRC computation (obviously ;) ) Beware - adding any members of this data structure may need changing the way CRC is being computed!

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The documentation for this struct was generated from the following file:

• mmu2_protocol.h