Interface for SPI Master. More...

#include <spi.h>

Inheritance diagram for mrf::SPIInterface:

Classes
struct	Operation

Public Member Functions
	SPIInterface ()

virtual	~SPIInterface ()

virtual void	select (unsigned id)=0
	Select numbered device. 0 clears selection. More...

virtual epicsUInt8	cycle (epicsUInt8 in)=0

virtual void	cycles (size_t nops, const Operation *ops)

double	timeout () const
	timeout in seconds for an individual cycle() More...

void	setTimeout (double t)

Protected Attributes
epicsMutex	mutex

Detailed Description

Interface for SPI Master.

Definition at line 20 of file spi.h.

Constructor & Destructor Documentation

◆ SPIInterface()

mrf::SPIInterface::SPIInterface ( )

Definition at line 14 of file spi.cpp.

15 :optimo(3.0)

16 {}

◆ ~SPIInterface()

mrf::SPIInterface::~SPIInterface ( )

virtual

Definition at line 18 of file spi.cpp.

18 {}

Member Function Documentation

◆ cycle()

virtual epicsUInt8 mrf::SPIInterface::cycle ( epicsUInt8 in )

pure virtual

Perform a single SPI transaction

Exceptions

std::runtime_error on timeout

Implemented in MRMSPI.

◆ cycles()

void mrf::SPIInterface::cycles	(	size_t	nops,
		const Operation *	ops
	)

virtual

Definition at line 25 of file spi.cpp.

 {
     for(size_t n=0; n<nops; n++)
     {
         const Operation& op = ops[n];
 
         for(size_t i=0; i<op.ncycles; i++) {
             epicsUInt8 O = this->cycle(op.in ? op.in[i] : 0);
             if(op.out)
                 op.out[i] = O;
         }
     }
 }

◆ select()

void mrf::SPIInterface::select ( unsigned id )

pure virtual

Select numbered device. 0 clears selection.

Implemented in MRMSPI.

Definition at line 21 of file spi.cpp.

22 {}

◆ setTimeout()

void mrf::SPIInterface::setTimeout ( double t )

Definition at line 48 of file spi.cpp.

 {
     SCOPED_LOCK(mutex);
     optimo = t;
 }

◆ timeout()

double mrf::SPIInterface::timeout ( ) const

timeout in seconds for an individual cycle()

Definition at line 41 of file spi.cpp.

 {
     SCOPED_LOCK(mutex);
     return optimo;
 }

Member Data Documentation

◆ mutex

epicsMutex mrf::SPIInterface::mutex

mutableprotected

Definition at line 46 of file spi.h.

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

Classes

Public Member Functions

Protected Attributes