Class to control GPIO and SPI communication from a nanoPi Neo2. More...

#include <nanopi.h>

Public Member Functions
bool	InitGPIO ()
	Initialize GPIO communication for LoLX-specific pins.

bool	InitSPI ()
	Initialize SPI communication, not specific to LoLX.

void	AddrOff ()
	Set the SPI channel select encoder to zero, i.e. select no SPI device.

void	SetAddr (short addr)
	Select SPI device via the SPI channel select encoder.

bool	HasSPI ()
	Check whether SPI was correctly initialized.

bool	HasGPIO ()
	Check whether GPIO was correctly initialized.

void	SendWord (short cselect, unsigned char *buf, uint8_t nbytes)
	Send data word via SPI.

uint8_t	Exch8 (short cselect, uint8_t data)
	Exchange 1 byte.

uint16_t	Exch16 (short cselect, uint16_t data)
	Exchange 2 bytes.

uint32_t	Exch24 (short cselect, uint32_t data)
	Exchange 3 bytes.

uint32_t	Exch32 (short cselect, uint32_t data)
	Exchange 4 bytes.

void	ResetAll ()
	Set reset pin on all SPI devices.

void	ResetHV ()
	Set reset pin on HV ADC and DAC.

void	EnableQP (bool on=true)
	Enable/disable charge pump.

void	StartADC ()
	Set ADC start pin HIGH.

void	StopADC ()
	Set ADC start pin LOW.

Static Public Member Functions
static uint32_t	SpiConvert (const uint32_t &input, unsigned short nbytes=4)
	Shuffle bytes around for correct SPI order and back.

Detailed Description

Class to control GPIO and SPI communication from a nanoPi Neo2.

Contains the communication routines for GPIO and SPI communication, including some specific to the LoLX SiPM biasing board

Member Function Documentation

Send data word via SPI.

Parameters

cselect	channel select for target device (via encoder or separate pins)
buf	correctly formatted data word, e.g. output of SpiConvert()
nbytes	length of data word in bytes

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