[amsat-bb] Re: mentpor help

4 Feb 2008

      The problem is, besides probably being cost prohibitive,  you blow your 
250mW power budget out of the water with the FPGA.  Using Actel's Power 
Calculator spreadsheet and the specs from the ARM7 IP Core datasheet, 
you're looking at a worst case of 543 mW with just the core in the 250k 
gate version and up to a watt in the bigger versions.
That said, thanks for the input.  The team needs this kind of input to 
guide them in their decision processes.
Jonathan Wagner
Office: (337)993-0778
Cell: (337)781-1513
Nick Pugh wrote:
...
Thanks for responce. Would you be willing to get on a web x conference 
with the team?
nick
----- Original Message -----
*From:* G0MRF@aol.com <mailto:G0MRF@aol.com>
*To:* quadpugh@bellsouth.net <mailto:quadpugh@bellsouth.net> ;
amsat-bb@amsat.org <mailto:amsat-bb@amsat.org>
*Cc:* zpan@louisiana.edu <mailto:zpan@louisiana.edu>
*Sent:* Sunday, February 03, 2008 5:54 PM
*Subject:* Re: [amsat-bb] mentpor help

Hello Nick.

Alternatively, you may be able to implement the microprocessor
functions in radiation tolerent FPGA from Actel.

200 - 300k rads seems to be the limit.

http://www.actel.com/products/milaero/rtaxs/default.aspx

Thanks

David

In a message dated 03/02/2008 17:05:24 GMT Standard Time,
quadpugh@bellsouth.net <mailto:quadpugh@bellsouth.net> writes:

    This processor is planed to fly on the CAPE II satellite on
    2009. It is anticipated that this will involve two one hour
    session a month via WEB X. We are seeking those have skill in
    designing fault tolerant microprocessors and he have knowledge
    how high energy particles effect memory chips.