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

Altera_Forum · ‎10-22-2013

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

Altera_Forum · ‎10-22-2013

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}

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Can I just use the PIN_L2 instead of PIN_99?

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

Cheers,

Dave