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GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > VXW / V7-0-2

Constituent: vxw_extra     Tag: mv2304

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mk48T.h.vx-ppc-cots File Reference

MK48T Timekeeper Driver. More...

#include "vxWorks.h"
#include "time.h"

Include dependency graph for mk48T.h.vx-ppc-cots:

Data Structures
struct	MK48T_tod
	Structure to hold time-of-day information. More...
Device Status Definitions
#define	MK48T_STATUS_WDOG_RESET   0x80
#define	MK48T_STATUS_BATTERY_LOW   0x10
Typedefs
typedef MK48T_tod	MK48T_TOD
Functions
int	mk48TInit (void)
	Initialize the MK48T driver.
void	mk48TTimeGet (MK48T_TOD *tod)
	Get the current time-of-day.
void	mk48TTimeSet (MK48T_TOD *tod)
	Set the current time-of-day.
void	mk48TTimeShow (void)
	Display the current time-of-day.
void	mk48TTimePrompt (void)
	User interface to set the current time-of-day.
time_t	mk48TTimeGetUTC (void)
	Get the current time-of-day in UTC format.
void	mk48TWdogSet (int period)
	Set and enable the watchdog timer.
UINT8	mk48TStatusGet (void)
	Get the status of the MK48T device.
STATUS	mk48TRamRead (UINT16 offset, UINT8 *buf, int numBytes)
	Read from non-volatile RAM.
STATUS	mk48TRamWrite (UINT16 offset, UINT8 *buf, int numBytes)
	Write to non-volatile RAM.

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Detailed Description

MK48T Timekeeper Driver.

The Motorolla MV2xxx series VME boards contain an MK48T device which provides the following functionallity:

• 8 KB non-volatile RAM
• A battery powered time-of-day clock
• A watchdog timer

This driver provides an interface to the time-of-day clock and watchdog timer and is intended as a supplement to VxWorks BSP's for these boards.

Because the MK48 device contains multiple registers and cannot guarantee atomic operations at the hardware level, the device is protected in software by a mutex. This means that none of the functions in this library should be called from interrupt level.

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Define Documentation

#define MK48T_STATUS_BATTERY_LOW   0x10

The MK48T battery power is running low.

#define MK48T_STATUS_WDOG_RESET   0x80

The MK48T watchdog timer reset the board.

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Typedef Documentation

MK48T_TOD

The typedef for MK48T_tod.

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