[gta02-core] components to research

[Werner Almesberger]

For the component search, I'd suggest to start by trying to locate
sources for the major chips. Knowing one or more places that sell
these chips won't preclude us from politely asking for samples, but
it would give us the comfort of having a fallback solution if we're
rejected or if negotiations draw out for too long.

Once this groundwork is done, we can handle all the "birdseed" that
makes the BOM look intimidating but usually isn't much of a problem.

Here are the biggest critters:

- CPU and memory MCP, Samsung, SC32442B54
  http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=229&partnum=SC32442&xFmly_id=229

- PMU, NXP, PCF50633HN/04/N3,5
  http://www.nxp.com/

- Audio codec, Wolfson, WM8753LGEFL
  http://www.wolfsonmicro.com/

- u-blox 4 GPS chipset, ATR0635-7KQY and ATR0610-PQQ
  http://www.u-blox.com/

- Bluetooth Module, Delta, DFBM-CS320-FI1R
  http://www.delta.com.tw/

- WLAN Module, Accton, WM3236AQ
  http://www.accton.com.tw/

- LCD Module, Toppoly, TD028TTEC1
  Toppoly is now apparently CHIMEI InnoLux,
  http://www.chimei-innolux.com/
  They may still trade as Toppoly or TPO

To be viable, a source should be able to indicate stock availability
and/or lead time, and the price for 20 units. Ideally, they would
provide this information without having to call/mail, but many
distributors prefer to surround their catalog with a veil of secrecy.

If you find something, please post to the list or on #gta02-core.

- Werner