change the set/get prescaler divider Interface in case of stm32F1

The stm32F1 prescaler is asynchronous and mapped on a 32bit param.

Signed-off-by: Francois Ramu <[email protected]>

Author: FRASTM

src/STM32RTC.cpp

@@ -140,11 +140,16 @@ void STM32RTC::setClockSource(Source_Clock source)
   * @param  predivS: pointer to the current Synchronous prescaler value
   * @retval None
   */
-void STM32RTC::getPrediv(int8_t *predivA, int16_t *predivS)
+void STM32RTC::getPrediv(int32_t *predivA, int16_t *predivS)
 {
+#if !defined(STM32F1xx)
   if ((predivA != nullptr) && (predivS != nullptr)) {
     RTC_getPrediv(predivA, predivS);
   }
+#else
+  UNUSED(predivS);
+  RTC_getPrediv(predivA, 0);
+#endif /* STM32F1xx */
 }
 
 /**
@@ -154,9 +159,14 @@ void STM32RTC::getPrediv(int8_t *predivA, int16_t *predivS)
   * @param  predivS: Synchronous prescaler value. Reset value: -1
   * @retval None
   */
-void STM32RTC::setPrediv(int8_t predivA, int16_t predivS)
+void STM32RTC::setPrediv(int32_t predivA, int16_t predivS)
 {
+#if !defined(STM32F1xx)
   RTC_setPrediv(predivA, predivS);
+#else
+  UNUSED(predivS);
+  RTC_setPrediv(predivA, 0);
+#endif /* STM32F1xx */
 }
 
 /**

src/STM32RTC.h

@@ -189,8 +189,8 @@ class STM32RTC {
     void setY2kEpoch(uint32_t ts);
     void setAlarmEpoch(uint32_t ts, Alarm_Match match = MATCH_DHHMMSS, uint32_t subSeconds = 0);
 
-    void getPrediv(int8_t *predivA, int16_t *predivS);
-    void setPrediv(int8_t predivA, int16_t predivS);
+    void getPrediv(int32_t *predivA, int16_t *predivS = nullptr);
+    void setPrediv(int32_t predivA, int16_t predivS);
 
     bool isConfigured(void)
     {