When several organisations are involved in the chain and half of them are aerospace, getting things that have been specified changed takes time and a LOT of paperwork.
When several organisations are involved in the chain and half of them are aerospace, getting things that have been specified changed takes time and a LOT of paperwork.
-- Paul Carpenter | paul@pcserviceselectronics.co.uk PC Services
And how did a flash drive come into this picture? Typical data retention is about 10 years.....
Meindert
Paul; Take a look at Xilinx XC9500XL family - similar to XC9500 family but low power. XL runs on 3.3v, but is 5 volt I/O tolerant. The XC95144XL looks like it will meet your requirements (it has 144 regs,
81 I/Os in TQFP-100 package), and it looks like it may meet your Icc requirements, too. 9500XL is also cheaper than 9500, but for 10 units I don't suppose that matters. As others have suggested, use older versions of Xilinx's ISE. ISE 8.x is so bleeping big that it doen't fit on a CD - only on a DVD. HTH-Dave Pollum
Thanks will look at it as the XC9500 looked close.
After umptten survey forms eventually managed to find the pages, will look at trying an older version shortly.
I think it has got to the predicted stage of
-- Paul Carpenter | paul@pcserviceselectronics.co.uk PC Services
months
It sounds very much like this project is being run backwards. Petty decisions like the size and medium for archiving are decided in advance, while real, important decisions like the tools and devices are left until later.
Maybe the spec should have been simplified to "a sufficiently large drive..." instead of specifiying it explicitly..! Or if it's more about approving specific devices, would "just use 2 of them" be an easier option...
Hi Paul,
Not sure about the minefield, Actel's P&R is called Designer. The third party tools are Modelsim for simulation (same for ISE/Quartus/ispLever) and Synplicity for synthesis. All these tools are called/invoked from Libero which is their development environment. I have no experience with Libero but I understand that Libero gold is free and allow you to target devices up to a million "marketing gates". I only use Designer and although it is much slower than ISE/Quartus it is quite easy to use. See the link below for a simple design I implemented on their ProASIC+ prototype board,
Regards, Hans.
That might work, just be carefull with driving true 5V devices from the CPLD. In fact, I am thinking about power switching an XC9536XL between
3.3V and 5V, to deal with the voltage translations. I have done it with an AVR, not sure it it will work with the XC9536XL yet.ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.