MC23LC512< SS_PIN, FREQ > Class Template Reference

#include <MC23LCXXX.h>

Inheritance diagram for MC23LC512< SS_PIN, FREQ >:

Collaboration diagram for MC23LC512< SS_PIN, FREQ >:

Public Member Functions
	MC23LC512 (SPI &spi)
virtual int	read (void *dst, uint32_t src, size_t count)
virtual int	write (uint32_t dst, const void *src, size_t count)
uint32_t	room ()
uint32_t	alloc (size_t count)
void	free (uint32_t addr)

Public Attributes
const uint32_t	SIZE

Static Public Attributes
static const uint32_t	MAX_FREQ

Protected Types
enum

Protected Attributes
uint32_t	m_addr

Detailed Description

template<BOARD::pin_t SS_PIN, uint32_t FREQ = 16000000L>
class MC23LC512< SS_PIN, FREQ >

Storage device driver for Microchip 23LC512, 512 Kbit SPI Serial SRAM.

Parameters

[in]	SS_PIN	slave select board pin.
[in]	FREQ	max bus frequency for device (default 16 MHz).

Circuit

                         23LC512
                      +------------+
(SS)----------------1-|CS   U   VCC|-8----------------(VCC)
(MISO)--------------2-|SO      HOLD|-7---------(VCC/PULLUP)
(VCC/PULLUP)--------3-|NU       SCK|-6----------------(SCK)
(GND)---------------4-|VSS       SI|-5---------------(MOSI)
                      +------------+

Definition at line 156 of file MC23LCXXX.h.

Member Enumeration Documentation

anonymous enum

protectedinherited

Command codes.

Definition at line 125 of file MC23LCXXX.h.

Constructor & Destructor Documentation

template<BOARD::pin_t SS_PIN, uint32_t FREQ = 16000000L>

MC23LC512< SS_PIN, FREQ >::MC23LC512 ( SPI &  spi )

inline

Construct and initiate device driver with given slave select board pin, max bus frequency, and bus manager.

Parameters

[in]

spi

bus manager.

Definition at line 163 of file MC23LCXXX.h.

Member Function Documentation

uint32_t Storage::alloc ( size_t  count )

inlineinherited

Allocate block with given number of bytes on storage. Returns storage address if successful otherwise UINT32_MAX.

Parameters

[in]

count

number of bytes.

Returns

address of allocated block, otherwise UINT32_MAX.

Definition at line 53 of file Storage.h.

void Storage::free ( uint32_t  addr )

inlineinherited

Reset allocation point to given address.

Parameters

[in]

addr

address of allocated block.

Definition at line 65 of file Storage.h.

virtual int MC23LCXXX< KBYTE, SS_PIN, FREQ >::read ( void *  dst, uint32_t  src, size_t  count  )

inlinevirtualinherited

Read given count number of bytes from SRAM source address to destination buffer. Returns number of bytes read, or negative error code.

Parameters

[in]	dst	destination buffer pointer.
[in]	src	source memory address on device.
[in]	count	number of bytes to read from device.

Returns

number of bytes read or negative error code.

Implements Storage.

Definition at line 59 of file MC23LCXXX.h.

uint32_t Storage::room ( )

inlineinherited

Returns number of bytes that may be allocated.

Returns

number of bytes.

Definition at line 42 of file Storage.h.

virtual int MC23LCXXX< KBYTE, SS_PIN, FREQ >::write ( uint32_t  dst, const void *  src, size_t  count  )

inlinevirtualinherited

Write given count number of bytes to SRAM destination address from source buffer. Returns number of bytes written, or negative error code.

Parameters

[in]	dst	destination memory address on device.
[in]	src	source buffer pointer.
[in]	count	number of bytes to write to device.

Returns

number of bytes written or negative error code.

Implements Storage.

Definition at line 93 of file MC23LCXXX.h.

Member Data Documentation

uint32_t Storage::m_addr

protectedinherited

Address of the next allocation.

Definition at line 398 of file Storage.h.

const uint32_t MC23LCXXX< KBYTE, SS_PIN, FREQ >::MAX_FREQ

staticinherited

Maximum device clock frequency.

Definition at line 37 of file MC23LCXXX.h.

const uint32_t Storage::SIZE

inherited

Number of bytes on device.

Definition at line 30 of file Storage.h.

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

• src/Driver/MC23LCXXX.h