ola::plugin::spidmx::SPIDMXParser Class Reference

Public Member Functions
	SPIDMXParser (DmxBuffer *buffer, Callback0< void > *callback)
void	ParseDmx (uint8_t *buffer, uint64_t chunksize)
void	SetCallback (Callback0< void > *callback)

Member Function Documentation

ParseDmx()

void ola::plugin::spidmx::SPIDMXParser::ParseDmx	(	uint8_t *	buffer,
		uint64_t	buffersize
	)

This class implements the DMX protocol on a very low level, so be sure to fully understand the protocol before you tackle this code ;)

Possible DMX frequencies are 245 - 255kbit/s. With a sampling rate of 2MHz, this results in one DMX bit being mapped to 8.163265306122449 - 7.843137254901961 SPI bits. So if we calculate with 7.5 - 8.5 bit length, we should be fine.

Abbreviations used in this class:

• MAB: Mark after break
• MBS: Mark between slots
• MBB: Mark before break Loop through the given SPI raw bytes and call in every iteration the respective function that handles the byte in the current state.

Parameters

*buffer	- The buffer with SPI bytes to read from
buffersize	- Size of the buffer

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The documentation for this class was generated from the following files:

• plugins/spidmx/SPIDMXParser.h
• plugins/spidmx/SPIDMXParser.cpp