signed numbers

pilotak · Jan 4, 2018 · 073a532 · 073a532
1 parent 0b577d1
commit 073a532
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/Hysteresis.h b/Hysteresis.h
@@ -42,7 +42,7 @@ void Hysteresis<T>::set(T step) {
 template <class T>
 T Hysteresis<T>::add(T value) {
   T res = _prev;
-  uint32_t value_scaled =  ((value << 8) / _step);
+  int32_t value_scaled =  ((value << 8) / _step);
   uint8_t bits = ((value_scaled) >> 6) & 0b11;
 
   if (value > _prev) {

diff --git a/README.md b/README.md
@@ -2,9 +2,9 @@
 Fixed point hysteresis filter for Mbed
 
 **_Type_** type can be:
- - `uint8_t`
- - `uint16_t` 
- - `uint32_t` but only up to 24 bits
+ - `uint8_t` or `int8_t`
+ - `uint16_t` or `int16_t`
+ - `uint32_t` or `int32_t` but only up to 23 bits
 
 # Example
 ```cpp