Getting started with XMOS

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Ganux
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Getting started with XMOS

Postby Ganux » Tue Mar 08, 2011 1:31 pm

Hello,

I am an Electronics-ICT student and for my thesis I am designing a modular LEDwall.
Though this is the first time I'm going to work with XMOS I have some questions I hope you guys can help me with.

My first important questions are hardware related;
I would like to implement a USB-to-JTAG chip so I can program my chip (probably XS1-L2) using only a USB-cable.
What is the easiest way to do this?

Greets,
Ganux
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Folknology
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Postby Folknology » Tue Mar 08, 2011 1:40 pm

I would suggest an Xtag2 to start with

Or a this is a good price kit to getting familiar with the XS1 L series
regards
Al
Ganux
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Joined: Tue Mar 08, 2011 12:58 pm

Postby Ganux » Tue Mar 08, 2011 1:57 pm

The thing is I have to design my own PCB...
And I really would like to get JTAG/UART directly on my board.
I already saw the FT2232 chip, but does that work without use of other ic's, ...

Greets,
Ganux
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segher
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Postby segher » Tue Mar 08, 2011 3:20 pm

Ganux wrote:I already saw the FT2232 chip, but does that work without use of other ic's
You need the configuration EEPROM for the FTDI (a 93c46, 8-pin thing). Look at
the XC-1A schematics to see how it is connected. Pay special attention to the
RESET and TRST lines.
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Folknology
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Postby Folknology » Tue Mar 08, 2011 3:34 pm

Its a mystery to me why Xmos hadn't opensourced the Xtag2 (and its code) when they built it in order to make building Xmos boards with built in debug simpler for folk but there you go and the FTDI route is simpler from a DIY POV

regards
Al
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Andy
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Postby Andy » Tue Mar 08, 2011 4:35 pm

Folknology wrote:Its a mystery to me why Xmos hadn't opensourced the Xtag2 (and its code) when they built it in order to make building Xmos boards with built in debug simpler for folk but there you go and the FTDI route is simpler from a DIY POV

regards
Al
Edit: Both the hardware and software are open source and available on the website.
Last edited by Andy on Tue Mar 08, 2011 5:55 pm, edited 1 time in total.
Corin
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Postby Corin » Tue Mar 08, 2011 4:57 pm

All of the binaries and software are avaialble on the XMOS website:

https://www.xmos.com/applications/usb/u ... le?ver=all

Cheers,
Corin
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Folknology
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Postby Folknology » Tue Mar 08, 2011 5:35 pm

I simply meant sources for both software and hardware - opensource

regards
Al
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Folknology
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Postby Folknology » Tue Mar 08, 2011 5:40 pm

In fact it would be a great addition to http://github.com/xcore whilst you guys are getting stuff out there

The idea was making it as EASY AS POSSIBLE to build in debug support with Xmos boards.

regards
Al
Corin
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Postby Corin » Tue Mar 08, 2011 6:09 pm

The sources for both software and hardware are available:

SW Source: https://www.xmos.com/accept-download?co ... 8xdjEuemlw

SW Binary To Be Be Burnt Into OTP On 64LQFP (made from the source above): https://www.xmos.com/accept-download?co ... 8xdjEuemlw

HW Schematic: https://www.xmos.com/published/xtag-2-s ... production

HW BOM: https://www.xmos.com/published/xtag-2-b ... production

HW Gerbers For Building XTAG2s: https://www.xmos.com/published/xtag-2-design-files

Kind Regards,
Corin

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