At last I've assembled and tested the EPM570 PCB version:

In the back of the PCB there is a short reminder about the solder jumpers you must use for the EPM570. In this case you need to populate C31 and C35 too (see the schematic).

Of course in the Quartus II IDE you have to select an EPM570T100C5 as device too:

As an example here is the file: H051117_MultiFun_EPM570.zip. It is the complete Quartus II project for the EPM570 version described in the log: Multi-functional display/leds/keys custom controller. Project example.

The sketch for the STM32 is (of course) the same used for the EPM240 version.