STM32 LPTICKER (LPTIM): correct init execution after bootloader

Author: jeromecoutant

targets/TARGET_STM/lp_ticker.c

@@ -59,16 +59,19 @@ const ticker_info_t *lp_ticker_get_info()
 
 volatile uint8_t  lp_Fired = 0;
 
+static int LPTICKER_inited = 0;
+
 static void LPTIM1_IRQHandler(void);
 static void (*irq_handler)(void);
 
 void lp_ticker_init(void)
 {
     /* Check if LPTIM is already configured */
-    if (__HAL_RCC_LPTIM1_IS_CLK_ENABLED()) {
+    if (LPTICKER_inited) {
         lp_ticker_disable_interrupt();
         return;
     }
+    LPTICKER_inited = 1;
 
     RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct = {0};
     RCC_OscInitTypeDef RCC_OscInitStruct = {0};