Andrew Kohlsmith wrote:
On Thursday 01 July 2004 01:19, Jay Milk wrote:A kind of wacky chip. The 8051 is like a festering wart on the side of an ADI DSP core :-) It doesn't seem that suitable for a VoIP phone, as it offers little integration. Other people are making VoIP chips with the ethernet, and even the analogue interfaces, built in - TI, agere, you name it.
That would be a great alternative. For what it's worth, the phone is
based on a PA1688 single-chip VOIP terminal, which in turn contains a
50MHz 8051-compatible and a ADSP2181 DSP running at 33MHz. The Sound
interface is AC97 compatible, the network interface is NE2000 compatible
(RTL8019 chip), running only 10mbps. For what it's worth, I was able to
determine that they're using VC6 and KeilC51 (?) to cross-compile.
Hmmm... 8051s are kind of stink IMO but they are EVERYWHERE. And I actually have an Analog Devices ADSP2183 reference design in my basement, complete with compilers and debuggers and all that fun stuff. Win32 only of course. :-(
There are freely available 2181 assembly language tools on Linux. I don't think there is a free C compiler, though.
This is a Chinese chip, and in China every engineering student studies the 8051 like it is the world's most wonderful processor. Using it is a no-brainer.
I wonder how free of litigation worries this chip might be. ADI is currently in dispute over more than one Chinese chip which appears to be a rip off, rather than an independantly implemented compatible part.
Regards, Steve
_______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
