Hello,

to talk to the SPI flash on the s3e starter kit board, I have some code that
invokes the BSCAN_SPARTAN3 primitive and additional sets and locates
DAC_CS = AMP_CS = SF_CE0 = FPGA_INIT_B = 1 and AD_CONV =0; 

NET "DAC_CS" LOC = "N8" ;
NET "AMP_CS" LOC = "N7" 
NET "AD_CONV" LOC = "P11" ;
NET "SF_CE0" LOC = "D16" ;
NET "FPGA_INIT_B" LOC = "T3";

That way I can talk to the SPI device after loading the bitfile via JTAG.

The first SPI access however often fails.

After an SPI access through that core, a press on the PROG button of the
board still triggers reconfiguration, and the DONE leds still lights up
after a short while, but the inital program scrolling the LCD doesn't
start. It only starts after repowering the whole board.

Any idea on what contention I hit and how I can solve?

Thanks
-- 
Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

On Feb 9, 9:09=A0pm, Uwe Bonnes
<b...@elektron.ikp.physik.tu-
darmstadt.de> wrote:
> Hello,
>
> to talk to the SPI flash on the s3e starter kit board, I have some code t=
hat
> invokes the BSCAN_SPARTAN3 primitive and additional sets and locates
> DAC_CS =3D AMP_CS =3D SF_CE0 =3D FPGA_INIT_B =3D 1 and AD_CONV =3D0;
>
> NET "DAC_CS" LOC =3D "N8" ;
> NET "AMP_CS" LOC =3D "N7"
> NET "AD_CONV" LOC =3D "P11" ;
> NET "SF_CE0" LOC =3D "D16" ;
> NET "FPGA_INIT_B" LOC =3D "T3";
>
> That way I can talk to the SPI device after loading the bitfile via JTAG.
>
> The first SPI access however often fails.
>
> After an SPI access through that core, a press on the PROG button of the
> board still triggers reconfiguration, and the DONE leds still lights up
> after a short while, but the inital program scrolling the LCD doesn't
> start. It only starts after repowering the whole board.
>
> Any idea on what contention I hit and how I can solve?
>
> Thanks
> --
> Uwe Bonnes =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0b...@elektron.ikp.physik.tu-dar=
mstadt.de
>
> Institut fuer Kernphysik =A0Schlossgartenstrasse 9 =A064289 Darmstadt
> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

Do you adjust the configuration mode jumpers?

Dinçay Akçören <d...@gmail.com> wrote:
> On Feb 9, 9:09 pm, Uwe Bonnes <b...@elektron.ikp.physik.tu-

> Do you adjust the configuration mode jumpers?

No.

-- 
Uwe Bonnes                b...@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------