Re: [Xc3sprog-users] Programming Spartan-II

[Arnim L. <arn...@gm...>]

Am 15.09.2013 13:04, schrieb bo...@el...:
>>>>>> "Arnim" == Arnim Läuger <arn...@gm...> writes:
> 
>     Arnim> Hi, I'm trying to configure a Spartan-II XC2S100 device usinc
>     Arnim> xc3sprog.  The FPGA is included in the scan chain together with
>     Arnim> an XCF01S and it's config mode pins are set to Master Serial.
> ...
> 
> What happens if you un- and repower the board?

The FPGA automatically loads the image that's currently stored in the PROM.

> What happens with the -R option?

# ./xc3sprog -c olimex -p 1 -R
XC3SPROG (c) 2004-2011 xc3sprog project $Rev: 747 $ OS: Linux
Free software: If you contribute nothing, expect nothing!
Feedback on success/failure/enhancement requests:
        http://sourceforge.net/mail/?group_id=170565
Check Sourceforge for updates:
        http://sourceforge.net/projects/xc3sprog/develop

Using Libftdi,
Device does not support reconfiguration.


Did some further trials targetting the PROM:
* xc3sprog can erase the PROM. After a power cycle the FPGA remains
unconfigured.
* xc3sprog can store the mcs-file to the PROM. FPGA configures properly
upon a power cycle.

But in both cases I can't download the bit-file directly to the xc2s100.
It won't come up with the new configuration.


Cheers,
Arnim