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Altera_Forum's avatar
Altera_Forum
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15 years ago

Programming EP3C5E144C8N

Hello,

I'm looking for informations to confirm me the last step of my work.

I would like to programm an EP3C5E144C8N with an EPCS16SI8N from a BYTEBLASTER.

I've followed datasheet from CIII_HandBook and EPCS datasheet to make a correct schematic, but I have a doubt about ths MSELs pins, so can someone help me please.

I selected the Fast Active Serial Fast (with the appropriate schematic) and put MSEL as follow :

MSEL[0] = '1' / MSEL[1] = '0' / MSEL[2] = '1' and this FPGA has no MSEL[3]

for having a logic one on the previous MSEL, I connect them to VCCA (2,5V) via a 0ohm resistance but the related bank (#6) has a VCCIO at 3,3V. So I'm confuse with that :confused:

Someone recommend me to use the Fast Active Serial Standard but couldn't tell me exactly why and how to change my schematic in that way

can someone help me please

if more information are needed don't hesitate

thanks in advance

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    after many reading of AN and other datasheet

    I'll do that :

    all my banks concerning configuration are at 3.3V

    ep3c5e144c8n hasn't got a third MSEL so Fast POR is eliminated

    so i'll connect the MSEL as following

    MSEL[2]='0' / MSEL[1]='1' / MSEL[0]='0'

    '0' = GND and '1'=Vcca so 2.5V

    in addition to that, i'll add a 25Ohm resistor near EPCS in the connection between DATA(EPCS) and DATA0(FPGA)

    and then i'll hope it will work

    if someone can confirm me that, i'll kindly appreciate

    thanks in advance