[MinnowBoard] Programming flash

[Peter Ogden]

Since David has tried it already I'd wait for his input, but I think this
is the mapping:

J1.1 = 3.3v
J1.2 = gnd
J1.3 = gnd (only one flash chip to select)
J1.4 = tck
J1.5 = tdo
J1.6 = TDI
J1.7 = no connect
J1.8 = 3.3v

The spi flash will get powered by the programmer so don't power the
MinnowBoard.
On Nov 5, 2014 10:06 AM, "Robert Johnston" <robert at layer2.com> wrote:

> Hi Peter,
>
>
>
> Thanks.  I looked at the connections shown for the 20 pin and also have
> the one from the eLinux org for the SPI connector.  Later today or tomorrow
> I will see if I can match signals.
>
>
>
> David Anders also replied and is looking into it.
>
>
>
> Robert
>
>
>
> *From:* Peter Ogden [mailto:peter.j.ogden at gmail.com]
> *Sent:* Tuesday, November 04, 2014 7:37 PM
> *To:* robert at layer2.com; MinnowBoard Development and Community Discussion
> *Cc:* elinux-minnowboard at lists.osuosl.org
> *Subject:* Re: [MinnowBoard] Programming flash
>
>
>
> Here is the Flyswatter2 JTAG Pinout:
>
> http://www.tincantools.com/assets/Flyswatter2%20-%2020%20Pin%20JTAG%20Connector.pdf
>
> Links to some more info is on this page:
> http://www.tincantools.com/JTAG/Flyswatter2.html
>
> Haven't tried it myself yet.
>
> -Peter
>
>
>
>
>
> On Tue, Nov 4, 2014 at 7:02 PM, Robert Johnston <robert at layer2.com> wrote:
>
> Hi,
>
>
>
> Documentation (such as http://www.elinux.org/Minnowboard:SPI_Boot_flash)
> indicates that the Minnowboad flash can be programmed using the TinCanTools
> Flyswatter2.  But I have been unable to find either a schematic or actual
> cable to connect from the Flyswatter 20 pin JTAG connector to the
> Minnowboard 8 pin SPI connector (or even determine if those are the right
> connectors to use).  Can anyone point me in the right direction?
>
>
>
> Thanks
>
>
>
> Robert
>
>
> _______________________________________________
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> elinux-MinnowBoard at lists.elinux.org
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>
>
>
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