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Altera_Forum
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11 years ago

Power sharing - FPGA & HPS power supply

Dear community, As you know, the HPS unit and the FPGA unit of the Cyclone V SXF need different voltage supplies, for instance 1.1 V for the core 1.5 V for the DDR3 and corresponding ban...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Sharing the power supplies maybe causes a problem occationally not always. Separating the supplies is better. By the way, you can see a lot of capacitance on the back of the development board.You can pick some off and the development board can work normally as well. This design helps to make the development more robust. Without them it maybe work normally as well but you'd be better to add them to the developmont board or other digital circuit.