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Altera_Forum's avatar
Altera_Forum
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10 years ago

Active Serial Programming ISSUE EPCS16 EP4CE15

Dear friends, i have designed and assembled my first fpga board and have some issues with the active serial programming. After programming the config device via usb blaster (which states 100% succ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

You are on to your problem. (Athough I get a different MSEL config for 3.3)

MSEL 0 = H

MSEL 1 = L

MSEL 2 = L

(for standard AS mode 3.3V)

MSEL 0 = H

MSEL 1 = L

MSEL 2 = H

(for fast AS mode 3.3 V)

The mode you have set is Passive Serial mode, so that would require you to provide the clock and control signals.

(Usually used when a CPU is used to program the FPGA)

Your only option here is to correct the error unfortunately. Unless your routing is such you can cut a trace and re-wire it for a re-work, it probably means a board spin.

Pete