modified watchdog library

XMC_MBED/APP_WATCHDOG/.mbed

 TARGET=XMC_4500_RELAX_KIT
 TOOLCHAIN=GCC_ARM
+ROOT=.

XMC_MBED/APP_WATCHDOG/README.adoc

@@ -17,6 +17,11 @@ and the XMC will reset after 5 seconds. At the next start the XMC checks with
 `wd.watchdogCauseReset()` if the watchdog timer was the cause of a reset; in
 this case LED1 is turned on.
 
+=========
+WARNING: This example relies on a library. In case the folder `XMCWatchdog-Library.git` and the file `XMCWatchdog-Library.git.lib` are missing you may add them by using the command:
+`mbed add https://github.com/mbed-Infineon-XMC/XMCWatchdog-Library.git`
+=========
+
 == Makefile Usage
 
 [source%nowrap, bash]

XMCWatchdog-Library.git @ 632d32df

+Subproject commit 632d32df5246cc2d1e835c49dc5c2487d0efb679

XMC_MBED/APP_WATCHDOG/XMCWatchdog-Library.git.lib

+https://github.com/mbed-Infineon-XMC/XMCWatchdog-Library/#632d32df5246cc2d1e835c49dc5c2487d0efb679

XMC_MBED/mbed-os/targets/TARGET_Infineon/TARGET_XMC4XXX/Watchdog/Watchdog.cpp

-/* mbed Example Program
- * Copyright (c) 2006-2014 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/***************************************************************** Includes **/
-#include "xmc_wdt.h"
-#include "xmc_scu.h"
-#include "Watchdog.h"
-#include "mbed.h"
-
-/****************************************************************** Globals **/
-XMC_WDT_CONFIG_t wdt_cfg;
-
-/**************************************************************** Functions **/
-
-/** @brief Constructor
- *
- */
-Watchdog::Watchdog() {
-
-    /* Check if watchdog was cause of reset */
-    if ((XMC_SCU_RESET_GetDeviceResetReason() & XMC_SCU_RESET_REASON_WATCHDOG) != 0){
-        wdreset = true;
-    }else{
-        wdreset = false;
-    }
-
-    /* Clear system reset status */
-    SCU_RESET->RSTCLR |= SCU_RESET_RSTCLR_RSCLR_Msk;
-}
-
-/** @brief Destuctor
- *
- */
-Watchdog::~Watchdog() {
-
-    XMC_WDT_Stop();
-}
-
-/** @brief Configure watchdog timer
- *
- *  @param time Time in seconds
- */
-void Watchdog::configure(float time) {
-
-    /* Use standby clock as watchdog clock source */
-    XMC_SCU_HIB_EnableHibernateDomain();
-    XMC_SCU_CLOCK_SetWdtClockSource(XMC_SCU_CLOCK_WDTCLKSRC_STDBY);
-    XMC_SCU_CLOCK_EnableClock(XMC_SCU_CLOCK_WDT);
-
-    wdt_time = time / (1 / (double)XMC_SCU_CLOCK_GetWdtClockFrequency());
-
-    /* Configure watchdog */
-    wdt_cfg.window_lower_bound = 0;
-    wdt_cfg.window_upper_bound = (uint32_t)wdt_time;
-    wdt_cfg.service_pulse_width = 255;
-
-    XMC_WDT_Init(&wdt_cfg);
-    XMC_WDT_Start();
-}
-
-/** @brief Watchdog service
- *
- */
-void Watchdog::service() {
-
-    XMC_WDT_Service();
-}
-
-/** @brief Check if watchdog was cause of reset
- *
- *  @return true if yes, no otherwise
- */
-bool Watchdog::watchdogCausedReset() {
-
-    return wdreset;
-}
-
-/*EOF*/

XMC_MBED/mbed-os/targets/TARGET_Infineon/TARGET_XMC4XXX/Watchdog/Watchdog.h

-/** Watchdog class for the XMC MCU family.
- *
- * Example:
- */
-
-#ifndef WATCHDOG_H
-#define WATCHDOG_H
-#include "mbed.h"
-
-class Watchdog {
-public:
-    /** Create HelloWorld instance
-     */
-    Watchdog();
-
-    /** Delete HelloWorld instance
-     */
-    ~Watchdog();
-
-    /** Print the text
-     *
-     * @param timeout in seconds
-     */
-    void configure(float timeout);
-
-    /** Watchdog service
-     */
-    void service();
-
-    /** Check if watchdog was cause of reset
-     *
-     * @returns
-     *  true    watchdog was cause of reset
-     *  fasle   watchdog was not cause of reset
-     */
-    bool watchdogCausedReset();
-
-private:
-
-    double wdt_time;
-    bool wdreset;
-};
-
-
-#endif // WATCHDOG_H
-
-/*EOF*/