Re: [Xc3sprog-users] Spartan 6 and UM232H

[Uwe B. <bo...@el...>]

Hello JB,


>>>>> "JB" == JB  <jbw...@gm...> writes:

    JB> Hello, I am trying to program an XC6SLX9 with an UM232H (an FT232H
    JB> based dev board). I have connected the JTAG signals, and I am now
    JB> trying to use xc3sprog to download my bitstream to the
    JB> board. xc3sprog does recognize the FPGA (it is the only component in
    JB> the JTAG chain), but it does not seem to be able to program it. At
    JB> first, the operation is successful, but the FPGA does nothing (it is
    JB> in "limbo", it does absolutely nothing, it is not running the old
    JB> program, nor is it running the new one). If I try it again, all
    JB> subsequent attempts fail (until the board power is turned off and
    JB> then on), with the following error message:

    JB> Device failed to configure, INSTRUCTION_CAPTURE is 0x3f

    JB> This might be a bug, but it is more likely I am missing something.
    JB> This is the command line I have been using:

    JB> xc3sprog -c um232h -L control.bit -v

    JB> I have also added a new entry for the UM232H board to the
    JB> cablelist.txt file - (I don't really know what the other FTDI
    JB> options mean: INTERFACE:DBUS_DATA:DBUS_EN:CBUS_DAT:ACBUS_EN):

If the JTAG needs some bits e.g. to enable the interface, you have to set
these bits. If you code this enabling by hand, you would set thses lines
with the MPSSE 0x80-0x83 commands "Set/Read DATA Bits High/Low with the
values DBUS_DATA:DBUS_EN:CBUS_DAT:ACBUS_EN. The values supplied are extended
with the values needed to enable the Pins used for JTAG and sent to the FTDI device

    JB> um232h ftdi 1500000 0x0403:0x6014::0:

So your coding would mean that no special line is needed. If you wired the
UM232H module direct, this would be fine.

    JB> Here is the full verbose transcript:

JB,

please test the integrity of your setup with running
xc3sprog -c um232h -T0

If there are problems, revisit your wiring. 

Let the list know about the outcome!

-- 
Uwe Bonnes                bo...@el...

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
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