[Icc-avr] 64 bits FP chip....

[Jaspers, Ton]

At those price levels we will never use them. Are you sure you have 
the decimal point at the correct position?

For example we use PXA320 (around $5), TMS320 ($2 to $3) 
An AVR peripheral chip in the $25 range isn't going to cut it. 
The average AVR is below $1, except the most advanced types.
 
Ton Jaspers

  

> -----Original Message-----
> From: icc-avr-bounces at imagecraft.com 
> [mailto:icc-avr-bounces at imagecraft.com] On Behalf Of Richard
> Sent: woensdag 16 mei 2007 8:29
> To: icc-announce at imagecraft.com; icc-avr at imagecraft.com; 
> icc-mot at imagecraft.com; icc-430 at imagecraft.com; icc-arm at imagecraft.com
> Subject: [Icc-avr] 64 bits FP chip....
> 
> I am considering producing something like this:
> 
> 64 bits FP support will be provided by the new iFPLightning 
> chip. The product is integrated fully into our compilers 
> (initially AVR but later on supporting other ICC compilers as 
> well). The approximate performance goals are
> 
> 1 uSec for 32 bit FP MUL
> 1.5 uSec for DIV
> and ~2X for 64 bits.
> 
> This is at least 15x-20X faster than the equivalent AVR code 
> and of course free up code space on the AVR chip.
> 
> The data transfer overheard is ~10 uSec to transfer two 
> operands and a result. Complex expressions will use the 
> intermediate results directly without data transfer. The API 
> uses a stack architecture so interrupt can remain enabled 
> except during the data transfer.
> 
> The iFPLightning chip comes in a 16 or 18 pin DIP module, 
> ~0.7" x 0.6" in size.
> 
> The following pricing is very tentative, but is our best guess:
> 
> 1-50            $30
> 100             $27
> 500             $25
> 1000            $22
> 
> It is highly likely that the chip will provide full high 
> level math support such as sin/cos/etc. We are also open to 
> other API such as DSP etc.
> 
> What do you think?
> 
> // richard <http://www.imagecraft.com>
> <http://www.dragonsgate.net/mailman/listinfo>  
> 
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