From: Bdale Garbee Date: Mon, 17 Jan 2011 17:02:50 +0000 (-0700) Subject: note issue with v1.0 and v1.1 artwork regarding separate pyro battery support X-Git-Tag: fab-v1.2~22 X-Git-Url: https://git.gag.com/?p=hw%2Ftelemetrum;a=commitdiff_plain;h=f4faf1cef5824c992905206e1fdf5120ed339086 note issue with v1.0 and v1.1 artwork regarding separate pyro battery support --- diff --git a/Notebook b/Notebook index 82cd96a..c45d0e9 100644 --- a/Notebook +++ b/Notebook @@ -193,3 +193,10 @@ powerful. Since the PIC has avilable weak pull-ups on the gpio lines, the open-drain state outputs from the regulator don't need resistors to be read. +2011.01.17 +- v1.0 and v1.1 boards have a minor error in that the v_lipo sampling resistors + are on "the wrong side of the cut" if you try to use a separate pyro battery. + The workaround is to cut that trace and put in a jumper, which pretty much + requires "return to Bdale for rework". We should fix this for a future PCB + revision. +