[amsat-bb] Re: AO-51 troubles

[Andrew Glasbrenner]

I'm not an expert here...but the memory is constantly "washed" for errors from radiation. I think the non-volatile type stuff didn't/doesn't have the read/write cycles we'd need for that. There is ROM onboard that holds the bootloader and a very stripped down OS.

73, Drew KO4MA

-----Original Message-----
>From: "P.H." <pholmes102 at gmail.com>
>Sent: May 6, 2011 1:28 PM
>To: amsat-bb at amsat.org
>Subject: [amsat-bb] Re: AO-51 troubles
>
>Ok, all is a little clearer right now!
>
>I wasn't aware that the sat relied on volatile memory to store the
>main software. Was there a particular reason why this was chosen over
>non-volatile or was it just an oversight that this issue would
>eventually happen when the batteries became exhausted?
>
>Just curious!
>
>Think now is a good time to remind everyone that an extra few dollars
>into the Amsat Fox fund wouldn't do any harm :-)
>
>
>73
>
>Pete
>2i0VAX
>