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Altera_Forum
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15 years ago

Cyclone III and EPCS4

Hi, i am trying to start Cyclone III with EPSC4. I write VHDL code wich toggles one of FPGA pins, but nothing happens, Quartus is programming the flash device - programmer says that everything is ok,...
Altera_Forum's avatar
Altera_Forum
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15 years ago

SOLVED! in docs is write that nSTATUS will up when FPGA discover three supplies - VINT VCCA and VCCIO of bank 1. They didnt mention that all of VCCIO should be connected - when connected missing 1.8V VCCIO everything works like a charm.