OLINUXINO

I think this was actually the SoC that launched the original OLinuXino project from Olimex: https://www.olimex.com/Products/OLinuXino/iMX233/open-source... OLinuXino project started with iMX233 from Freescale for several reasons: this is ARM9 processor running at 454Mhz with enough power to run linux and still in handsolder friendly TQFP package, which allow hobby DIY approach. iMX233-OLinuXino-MICRO is even on 2 layer PCB and running at full speed. The maximum memory of 64MB though limited the applications with it, so we were looking around for something more powerful when A13 from Allwinner came along. (https://github.com/OLIMEX/OLINUXINO)

For people not familiar with the industry or the issue, compare the documentation available for the broadcom processor in the popular raspberry pi 2 https://github.com/raspberrypi/documentation/tree/master/har... and that of the Allwinner A64 in the far less common "Banana Pi": https://github.com/OLIMEX/OLINUXINO/tree/master/HARDWARE/A64... As you can see, the Broadcom documentation is non-existent, with the exception of a tiny document created by a third party.

this looks like an implementation of this: https://github.com/OLIMEX/OLINUXINO/tree/master/HARDWARE/RT5... olimex sells those itself: https://www.olimex.com/Products/OLinuXino/RT5350F/RT5350F-OL...

Take a look at the Olinuxino: https://github.com/OLIMEX/OLINUXINO https://www.olimex.com/dev/imx233-olinuxino-maxi.html They've got one version running an admittedly slow i.MX processor, and another coming down the pike running an Allwinner chip. As a bonus, though, it's all reasonably easy-to-assemble TQFP chips.