From 0f99a4c969c4c7dbbbec336b48e4df8553301976 Mon Sep 17 00:00:00 2001
From: etrinh <etrinh@zdionline.net>
Date: Thu, 2 Apr 2020 22:10:50 +0200
Subject: [PATCH] Fix compilation warning STM32 uses TP

---
 src/knx/dptconvert.cpp | 10 ++++++----
 src/knx/knx_value.cpp  |  2 +-
 src/knx_facade.cpp     |  2 +-
 src/knx_facade.h       |  4 ++--
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/knx/dptconvert.cpp b/src/knx/dptconvert.cpp
index 5da8fde..1c5a734 100644
--- a/src/knx/dptconvert.cpp
+++ b/src/knx/dptconvert.cpp
@@ -1723,8 +1723,9 @@ double float16FromPayload(const uint8_t* payload, int index)
 }
 float float32FromPayload(const uint8_t* payload, int index)
 {
-    uint32_t area = unsigned32FromPayload(payload, index);
-    return *((float*)&area);
+    union { float f; uint32_t i; } area;
+    area.i = unsigned32FromPayload(payload, index);
+    return area.f;
 }
 int64_t signed64FromPayload(const uint8_t* payload, int index)
 {
@@ -1815,8 +1816,9 @@ void float16ToPayload(uint8_t* payload, size_t payload_length, int index, double
 }
 void float32ToPayload(uint8_t* payload, size_t payload_length, int index, double value, uint32_t mask)
 {
-    float num = value;
-    unsigned32ToPayload(payload, payload_length, index, *((uint32_t*)&num), mask);
+    union { float f; uint32_t i; } num;
+    num.f = value;
+    unsigned32ToPayload(payload, payload_length, index, num.i, mask);
 }
 void signed64ToPayload(uint8_t* payload, size_t payload_length, int index, int64_t value, uint64_t mask)
 {
diff --git a/src/knx/knx_value.cpp b/src/knx/knx_value.cpp
index 7b6f93a..22d3e85 100644
--- a/src/knx/knx_value.cpp
+++ b/src/knx/knx_value.cpp
@@ -526,7 +526,7 @@ struct tm KNXValue::timeValue() const
             return *timePtr;
         }
     }
-    struct tm tmp;
+    struct tm tmp = {0};
     return tmp;
 }
 
diff --git a/src/knx_facade.cpp b/src/knx_facade.cpp
index ba5e766..7219cb0 100644
--- a/src/knx_facade.cpp
+++ b/src/knx_facade.cpp
@@ -23,7 +23,7 @@
     // predefined global instance for IP only
     KnxFacade<Esp32Platform, Bau57B0> knx;
 #elif ARDUINO_ARCH_STM32
-    KnxFacade<Stm32Platform, Bau57B0> knx;
+    KnxFacade<Stm32Platform, Bau07B0> knx;
     // no predefined global instance
     #define ICACHE_RAM_ATTR
 #elif __linux__
diff --git a/src/knx_facade.h b/src/knx_facade.h
index 108b7be..7aa862c 100644
--- a/src/knx_facade.h
+++ b/src/knx_facade.h
@@ -20,7 +20,7 @@
    #include "knx/bau57B0.h"
 #elif ARDUINO_ARCH_STM32
    #include "stm32_platform.h"
-   #include "knx/bau57B0.h"
+   #include "knx/bau07B0.h"
 #else
    #define LED_BUILTIN 0
    #include "linux_platform.h"
@@ -338,7 +338,7 @@ template <class P, class B> class KnxFacade : private SaveRestore
     extern KnxFacade<Esp32Platform, Bau57B0> knx;
 #elif ARDUINO_ARCH_STM32
     // predefined global instance for TP only
-    extern KnxFacade<Stm32Platform, Bau57B0> knx;
+    extern KnxFacade<Stm32Platform, Bau07B0> knx;
 #elif __linux__
     // no predefined global instance
 #endif