The writing must be done by the first LPDC-supporting port after all
the LPDC-supporting ports have been calibrated. Thus, this must be
done in the new state HAL_PORT_TX_SETUP_STATE_WAIT_OTHER_PORTS and
only the first port. Otherwise, we have problem when looping through
all the supporting ports. In particular, the writing must be done for
all LPDC-supporting ports, if we start looping on port N (by ++pointer),
then we will not cover all ports, unless we loop up (++) and (--)
down.