AvrSpi Class Reference

Class implements AVR spi support via hardware module. More...

#include <spi_avr.h>

Inheritance diagram for AvrSpi:

Public Member Functions
	AvrSpi (int8_t csPin, int8_t dcPin, uint32_t frequency)
	Creates AVR spi instance. More...
void	begin ()
	Initializes spi interface.
void	end ()
	Closes spi interface.
void	start ()
	Starts communication with SSD1306 display.
void	stop ()
	Ends communication with SSD1306 display.
void	send (uint8_t data)
	Sends byte to SSD1306 device. More...
void	sendBuffer (const uint8_t *buffer, uint16_t size)
	Sends bytes to SSD1306 device. More...

Detailed Description

Class implements AVR spi support via hardware module.

Definition at line 36 of file spi_avr.h.

Constructor & Destructor Documentation

AvrSpi()

AvrSpi::AvrSpi ( int8_t  csPin, int8_t  dcPin, uint32_t  frequency  )

explicit

Creates AVR spi instance.

This interface can be used from command line avrgcc toolchain.

Parameters

csPin	pin to enable chip select signal, or -1 if cs pin is not required.
dcPin	pin to control data/command mode.
frequency	frequency in HZ to run SPI bus.

Member Function Documentation

send()

void AvrSpi::send

(

uint8_t

data

)

Sends byte to SSD1306 device.

Parameters

data	- byte to send

sendBuffer()

void AvrSpi::sendBuffer	(	const uint8_t *	buffer,
		uint16_t	size
	)

Sends bytes to SSD1306 device.

Sends bytes to SSD1306 device. This functions gives ~ 30% performance increase than ssd1306_intf.send.

Parameters

buffer	- bytes to send
size	- number of bytes to send

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

• src/lcd_hal/avr/spi_avr.h