UM0097 datasheet(95/229 Pages) STMICROELECTRONICS

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UM0097

Peripheral firmware overview

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Table 43 describes the WDG structure fields.

The WDG peripherals are declared in the same file:

...

#define WDG_BASE

(APB2_BASE + 0xE000)

...

#ifndef DEBUG

...

#ifdef _WDG

#define WDG

((WDG_TypeDef *)WDG_BASE)

#endif /*WDG*/

...

#else

/* DEBUG */

...

#ifdef _WDG

EXT WDG_TypeDef

*WDG;

#endif /*WDG*/

...

#endif

When debug mode is used, WDG pointers are initialized in the file 71x_lib.c:

#ifdef _WDG

WDG = (WDG_TypeDef *)WDG_BASE;

#endif

In debug mode, _WDG must be defined, in the file 71x_conf.h, to access the peripheral

registers as follows:

#define _WDG

Some RCCU functions are called, _RCCU must be defined, in 71x_conf.h file, to make the

RCCU functions accessible:

#define _RCCU

Table 43.

WDG structure fields

Description

Control register

Prescaler register

Pre-load Value register

CNT

Counter register

Status Register

Mask Register

Key Register

UM0097 Datasheet(PDF) 95 Page - STMicroelectronics

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