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Altera_Forum's avatar
Altera_Forum
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15 years ago

Cyclone III EP3C25 High Temperature Booting Problem

Dear Friends, I am facing a high temperature booting problem with EP3C25F324. I found that the FPGA can not boot up at temperature over 40 Centigrade while doing the temperature cycling tests....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

does this mean with jtag you can figure your system and it runs fine but not via epcs ?

can you measure the epcs configuration related signals ?

have you connected the nCE and MSEL signals directly to GND and 2,5V or via some kind of resistor ? they need to be directly connected 0 Ohm

the Cyclone 3 needs a smal resistor (~25 ohm) directly after the output of the epcs