new_end_byte = (bit_position + bit_size - 1) >> 3;
new_end_bit = (bit_position + bit_size - 1) % 8;
}
+
+
+/**
+ * @brief This is to use when you have a big endian CAN frame layout.
+ * It converts the bit position so it matches with little endiant CAN frame layout.
+ *
+ * @param bit_position Original bit position.
+ * @param bit_size Size of the data.
+ * @return uint32_t New little endian bit position.
+ */
+uint32_t converter_t::bit_position_swap(uint32_t bit_position,uint32_t bit_size)
+{
+ uint32_t start_byte_position = (uint32_t)(bit_position/8);
+ uint32_t bit_size_rest = bit_size;
+ if(bit_size<=8 && ((bit_position+bit_size)%8==bit_size || (bit_position+bit_size)%8==0))
+ {
+ return (uint32_t)(start_byte_position*8 + (8-bit_size));
+ }
+ else
+ {
+ do
+ {
+ bit_size_rest = bit_size_rest - ((start_byte_position+1)*8-bit_position);
+ start_byte_position--;
+ bit_position = start_byte_position*8;
+ } while (bit_size_rest>8);
+ return (uint32_t)(start_byte_position*8 + (8-bit_size_rest));
+ }
+
+}