From 068b8f582296224591200104ab6f92fac537078e Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Sun, 8 Feb 2015 02:55:24 +0000 Subject: various fixes for r20150208 --- docs/install/x200_external.html | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'docs/install/x200_external.html') diff --git a/docs/install/x200_external.html b/docs/install/x200_external.html index f9907899..6922b901 100644 --- a/docs/install/x200_external.html +++ b/docs/install/x200_external.html @@ -94,6 +94,8 @@ POMONA 5250 (correlate with the BBB guide) 3.3V PSU RED - - 17 - this is pin 1 on the flash chip. in front of it is the screen. === right side of the X200 (where the audio jacks are) === This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack. +Here is a photo of the SOIC-8 flash chip: images/x200/soic8.jpg +(image copyright 2015 Patrick P.J. McDermott <pj@pehjota.net>, CC BY-SA 3.0 or later)

On the X200S the flash chip is underneath the board, in a WSON package. @@ -101,6 +103,11 @@ POMONA 5250 (correlate with the BBB guide) images/x200/wson_soldered.jpg (image copyright (C) 2014 Steve Shenton under CC-BY-SA 4.0 or higher, same license that this document uses) shows it wired (soldered) and connected to a BBB. +
+ In this image, a pin header was soldered onto the WSON. Another solution might be to de-solder the WSON-8 chip and put a SOIC-8 there instead. + Check the list of SOIC-8 flash chips at ../hcl/x200_remove_me.html#flashchips but + do note that these are only 4MiB (32Mb) chips. The only X200 SPI chips with 8MiB capacity are SOIC-8. For 8MiB capacity in this case, + the X201 SOIC-8 flash chip (Macronix 25L6445E) might work.

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