Allwinner A10 EOMA-68 PCB Bugtracker

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htmi kicad symbol needs 4 shield pins added, also needs component to be picked and then footprint made

Posted Sun Jan 15 08:52:28 2012

EOMA-68 now renamed to EOMA-68. web site needs sorting, and elinux.org as well. files are:

  • ./allwinner_a10/news.html
  • ./faq.mdwn
  • ./allwinner_a10/orders.mdwn
  • ./allwinner_a10/pcb/bugs.mdwn
  • ./allwinner_a10/pcb.mdwn
  • ./allwinner_a10/pinouts.mdwn
  • ./allwinner_a10.mdwn
  • ./community_ideas.mdwn
  • ./am335x.mdwn
  • ./index.mdwn
  • ./am3703.mdwn
  • ./adsl_router.mdwn
Posted Fri Jan 13 23:31:54 2012

the analog and digital 3.3v power have been wired together because it looks like there are components on the example schematic to sort out analog and digital power. however i don't know if that's ok

Posted Fri Jan 13 15:06:17 2012

track down other ldos a SY8021L and also a LDO AP1231. create kicad parts, add them. make separate sheet for them. http://www.chipown.com.cn/pro/AP1231.pdf and it's a SOT-25 (SOT-23-5L) SY8021L isn't clear, datasheet not yet located, this part TD6821 is equivalent http://www.techcodesemi.com/products_info.asp?pid=50

Posted Wed Jan 11 01:41:45 2012

need review http://hands.com/~lkcl/eoma/allwinner thanks to derek, 1 review done. any more?

Posted Tue Jan 10 16:31:13 2012
Posted Tue Jan 10 16:30:39 2012

need an application note on how to connect 2x 8-bit NAND ICs datasheet: http://www.jm-chip.com/en/down/H27UBG8T2A.pdf

Posted Sun Jan 8 16:19:50 2012

must do power schematic diagram

Posted Sun Jan 8 04:09:14 2012

find an RALink RTL8201CP schematic or application note

"PWFBIN is fed with the 1.8V power from PWFBOUT through a ferrite bead as shown in the reference design schematic document (available for download from www.realtek.com.tw)."

http://space.ednchina.com/ewebeditor/uploadfile/20110916082900568.pdf

Posted Sun Jan 8 04:08:32 2012

find a good description of how to daisy-chain 4 DDR3 IC clock lines together, and annotate it correctly on the ddr3_flyby.sch page

Posted Sun Jan 8 04:05:23 2012

select the GPIO pins from pinouts most suitable to go onto the PCMCIA interface.

Posted Sun Jan 8 03:59:52 2012