converter: Improve the continental bit calcul

This is an improvment of the bit_position computing. This now operate only
on full bytes to get the position.

Change-Id: Idb4993a3c9922d50d02379139e7cbbe5a2cb501b
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

diff --git a/low-can-binding/utils/converter.cpp b/low-can-binding/utils/converter.cpp
index 5662574..6c9cedb 100644 (file)
--- a/low-can-binding/utils/converter.cpp
+++ b/low-can-binding/utils/converter.cpp
@@ -99,5 +99,5 @@ uint32_t converter_t::bit_position_swap(unsigned int msg_length, unsigned int bi
  */
 uint32_t converter_t::continental_bit_position_mess(unsigned int msg_length, unsigned int bit_position, unsigned int bit_size)
 {
-       return bit_position + (CHAR_BIT - bit_position % CHAR_BIT) - bit_size;
+       return bit_position + CHAR_BIT - 2 * (bit_position % CHAR_BIT) - bit_size;
 }