A change was made to the hardware on the 5386 Rev H board. The source of the clock feeding the MCLK pin on the SERCOS Chip was changed from SCLK04 to SCLK02. There are several pre-calculated constants that rely on the known speed of MCLK that needed to be recalculated. The controller and Drive will not pass the phase 1 state of the SERCOS phase test run up without the correct constants.

This same change was previously made on the 5226 hardware which uses the same clock speeds and basically the same software. The divisors that were changed in the 5226 are also now changed in the 5386.

These were previously changed in the roll-forming application code when this issue was discovered during the initial testing of the new Rev H hardware. It was assumed the HWTest shared the same source file but that turned out to be an invalid assumption.