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Altera_Forum
Honored Contributor
12 years agoCyclone 3 E144 package getting hot and Cannot program the Cyclone using EPSC4 Chip
Thanks in advance, for any help you guys can provide . I'm trying to configure a Cyclone 3 (EP3C5E144) device using AS configuration mode. I'm currently using the EPCS4 chip for the AS mode configu...
Altera_Forum
Honored Contributor
12 years agoPost your schematic and then forum members can take a look.
It sounds like your 10-pin header is configured for AS mode, rather than JTAG mode. Most designers only implement the JTAG mode connector and use JIC for programming EPCS devices. What version of Quartus are you using to create your configuration file? Older versions of Quartus would set the default state of unused pins as "Output driving ground". If you create a top-level design that does not include all board-level connections, then this setting can cause driver conflicts with the external devices (the ones that drive the FPGA pins). So check your pin report file matches the board before download. Cheers, Dave