ECN0001: Enough test points for WLAN SPI? ;-)

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Rask Ingemann Lambertsen-2

ECN0001: Enough test points for WLAN SPI? ;-)

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   We have WLAN SPI test points on both TP8001..TP8003,TP8005 on wlan.sch
and TP4715..TP4718 on io.sch. Is it OK if I move the latter ones to the
DEBUG SPI signals instead? And a related question, should we swap the SPI
pins at the debug connector to try to keep the debug connector pin-out
compatible with the GTA01/GTA02 one?

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Rask Ingemann Lambertsen
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Werner Almesberger

Re: ECN0001: Enough test points for WLAN SPI? ;-)

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Rask Ingemann Lambertsen wrote:
>    We have WLAN SPI test points on both TP8001..TP8003,TP8005 on wlan.sch
> and TP4715..TP4718 on io.sch. Is it OK if I move the latter ones to the
> DEBUG SPI signals instead?

Sounds good, yes.

> And a related question, should we swap the SPI
> pins at the debug connector to try to keep the debug connector pin-out
> compatible with the GTA01/GTA02 one?

You mean swap DEBUG_* with WLAN_* ? Yeah, seems to make more sense,
given that the others are occupied now.

By the way, I noticed that CONSOLE_RXD/CONSOLE_TXD were at pins 1 and 2,
but they ought to be at pins 2 and 3. I've fixed it and I've also moved
the pull-up and test point group a bit to the side, to make it less
crowded.

- Werner

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Werner Almesberger

Re: ECN0001: Enough test points for WLAN SPI? ;-)

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I wrote:
> You mean swap DEBUG_* with WLAN_* ? Yeah, seems to make more sense,
> given that the others are occupied now.

So ... this would also obsolete/replace the 0Rs in ECN0039, right ?

I would be a little worried about adding lots more 0Rs - they all
take space, and we're already trying to considerably reduce the
complexity of the layout.

- Werner

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