From 0d620fe720be21471a4b431cac24d3e860ebb8a4 Mon Sep 17 00:00:00 2001
From: jeromecoutant <jerome.coutant@st.com>
Date: Thu, 21 Feb 2019 16:25:20 +0100
Subject: [PATCH] STM32 LPTICKER (LPTIM): correct init execution after
 bootloader

---
 targets/TARGET_STM/lp_ticker.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/targets/TARGET_STM/lp_ticker.c b/targets/TARGET_STM/lp_ticker.c
index d8704faa560..fa16a27f6e3 100644
--- a/targets/TARGET_STM/lp_ticker.c
+++ b/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};