IBASE Technology SI - 83, Руководство пользователя

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65
C. Watchdog Timer Configuration
The WDT is used to generate a variety of output signals after a user programmable count. The
WDT is suitable for use in the prevention of system lock-up, such as when software becomes
trapped in a deadlock. Under these sorts of circumstances, the timer will count to zero and the
selected outputs will be driven. Under normal circumstance, the user will restart the WDT at
regular intervals before the timer counts to zero.
SAMPLE CODE:
File of the NCT5523D.H
//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//---------------------------------------------------------------------------
#ifndef __NCT5523D_H
#define __NCT5523D_H 1
//---------------------------------------------------------------------------
#define NCT5523D_INDEX_PORT (NCT5523D_BASE)
#define NCT5523D_DATA_PORT (NCT5521)
//---------------------------------------------------------------------------
#define NCT5523D_REG_LD 0x07
//---------------------------------------------------------------------------
#define NCT5523D_UNLOCK 0x87
#define NCT5523D_LOCK 0xAA
//---------------------------------------------------------------------------
unsigned int Init_NCT5523D(void);
void Set_NCT5523D_LD( unsigned char);
void Set_NCT5523D_Reg( unsigned char, unsigned char);
unsigned char Get_NCT5523D_Reg( unsigned char);
//---------------------------------------------------------------------------
#endif //__NCT5523D_H