From 1ac5190ea52d8b42e7ee4eaf6d287124411e3af8 Mon Sep 17 00:00:00 2001
From: fruchti <fruchti@gvfr.de>
Date: Sat, 18 Jul 2020 17:09:33 +0200
Subject: [PATCH] Enable extra warnings

---
 build-number.txt | 2 +-
 makefile         | 2 +-
 src/ltp1245.c    | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/build-number.txt b/build-number.txt
index 68d5f38..2e9c1e1 100644
--- a/build-number.txt
+++ b/build-number.txt
@@ -1 +1 @@
-553
+558
diff --git a/makefile b/makefile
index 1400615..be02aa3 100644
--- a/makefile
+++ b/makefile
@@ -23,7 +23,7 @@ endif
 CFLAGS = -mcpu=cortex-m3 -mthumb \
 		 -Os -fno-common -Werror \
 		 -nostartfiles \
-		 -Wall -Xlinker --gc-sections \
+		 -Wall -Wextra -Xlinker --gc-sections \
 		 -D$(H_DEVICE) -D_DEFAULT_SOURCE -T$(LD_SCRIPT) \
 		 -Wl,-Map=$(BUILD_DIR)/$(PROJECT).map -std=c99 \
 		 $(addprefix -I,$(SOURCE_DIRS) $(INCLUDE_DIRS)) $(DEBUG_FLAGS)
diff --git a/src/ltp1245.c b/src/ltp1245.c
index 7454508..5ca134a 100644
--- a/src/ltp1245.c
+++ b/src/ltp1245.c
@@ -413,7 +413,7 @@ void ADC1_2_IRQHandler(void)
         
         // Find first temperature higher than the measured one
         int lower_entry = 0;
-        for(int i = 1; i < sizeof(READINGS) / sizeof(READINGS[0]); i++)
+        for(unsigned int i = 1; i < sizeof(READINGS) / sizeof(READINGS[0]); i++)
         {
             if(adc >= READINGS[i])
             {
@@ -421,7 +421,7 @@ void ADC1_2_IRQHandler(void)
                 break;
             }
         }
-        int higher_entry = lower_entry + 1;
+        unsigned int higher_entry = lower_entry + 1;
         int temp = lower_entry * 5 - 40;    // Temperature in °C
 
         // Interpolate linearly