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Altera_Forum
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12 years ago

SDI Megacore on Stratix4 GX devkit. Mismatch pinnames in UG with actual device.

Hi,

I'm trying to follow the SDI core on an S4 GX dev kit board.

See also: http://www.altera.com/literature/ug/ug_sdi_ii.pdf

Altera provide an example design S4GXSDI_AUDIO_TOP

In this guide the apply a pin constraint on page A-7 

set_location_assignment PIN_99 -to sdi_rx

However, the S4 GX has names starting with a letter and then a number.

For example : The design has "sdi_rx_p" on PIN_L2.

Anybody every encountered this mismatch in user guide versus design.

Can I just use the PIN_L2 instead of PIN_99?

Rgds,

Kimberley

1 Reply

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

    Hi Kimberly,

    I rarely use the example designs as the "golden" reference for a kit, I always use the schematic (or at least confirm each pin in the golden reference with the schematic).

    I've attached my pin constraints file. Here's the SDI section from that file: 

    
   #  Video out clock control (p6,9 )
    set pin(sdi_clk148_up)    {PIN = AH12, IOSTD = "2.5 V", DRIVE = 12mA, SLEW = 0}
    set pin(sdi_clk148_dn)    {PIN = AH11, IOSTD = "2.5 V", DRIVE = 12mA, SLEW = 0}
   #  Video out control
    set pin(sdi_tx_sd_hdN)    {PIN = V29,  IOSTD = "2.5 V", DRIVE = 12mA, SLEW = 0}
   #  Video out
    set pin(sdi_tx)            {PIN = K4,   IOSTD = "1.4-V PCML"}
    set pin(sdi_tx(n))        {PIN = K3}
   #  Video in
    set pin(sdi_rx)            {PIN = L2,   IOSTD = "1.4-V PCML"}
    set pin(sdi_rx(n))        {PIN = L1}

    --- Quote Start ---

    Can I just use the PIN_L2 instead of PIN_99?

    --- Quote End ---

    Yes, pin 99 is wrong, pin L2 is correct.

    Cheers,

    Dave