SDCC with SiLabs/Cygnal new 0.9V parts?

Has anyone here used the new 0.9V single-cell 8051 parts with sdcc? I
am keen to experiment with these chips, and I'd prefer to work in C,
but I'm not paying for a Keil license just for playing around.

Thanks!

larwe wrote:
> Has anyone here used the new 0.9V single-cell 8051 parts with sdcc? I
> am keen to experiment with these chips, and I'd prefer to work in C,
> but I'm not paying for a Keil license just for playing around.
> Thanks!

Why SDCC just to play?  For $99 you can get the Silabs C8051F930DK development kit from Mouser.com, which includes the Silab IDE and the Keil tools with a 4K limit.  Read the Silab "Application Note �AN104: Integrating Keil 8051 Tools Into the Silicon Labs IDE" which contains instructions for obtaining the 4 k limited version of the Keil toolset.  

http://www.silabs.com/public/documents/tpub_doc/anote/Microcontrollers/en/an104.pdf
http://www.silabs.com/tgwWebApp/public/web_content/products/Microcontrollers/en/C8051F930DK.htm
http://www.silabs.com/public/documents/tpub_doc/uguide/Microcontrollers/LowVoltage_LowPower/en/C8051F930-DK.pdf

I've no financial interest in Silabs, but I've used their C8051 development kit before and I thought it was pretty easy to get up and running quickly.

On Apr 4, 10:00=A0am, Freelance Embedded Systems Engineer
<g9u5d...@yahoo.com> wrote:
> larwe wrote:
> > Has anyone here used the new 0.9V single-cell 8051 parts with sdcc? I
> > am keen to experiment with these chips, and I'd prefer to work in C,
>
> Why SDCC just to play? =A0For $99 you can get the Silabs C8051F930DK devel=
opment kit
> from Mouser.com, which includes the Silab IDE and the Keil tools with a 4K=
 limit.

Ah, I didn't realize that. 4K is more than enough for what I need to
do. But last time I experimented with Keil's demo version, it was way
more limited - you couldn't locate code at the POR start area of the
chip, and the limit was 2K IIRC.

The distri is bringing me a toolstick or two to play with very soon, I
hope. These parts would be very interesting for the product area where
I work; the low power and good mixed-signal performance plus the
spread-spectrum clocking are tasty. Looking forward to the smaller
variants too - 32K is way overkill for us.

Thanks for the reply.

Freelance Embedded Systems Engineer wrote:
> larwe wrote:
>> Has anyone here used the new 0.9V single-cell 8051 parts with sdcc? I
>> am keen to experiment with these chips, and I'd prefer to work in C,
>> but I'm not paying for a Keil license just for playing around.
>> Thanks!
> 

How about SDCC itself:

On:
http://www.silabs.com/tgwWebApp/public/web_content/products/Microcontrollers/en/mcu_applications_appnotes.htm

Look under Development Tools for:
Integrating SDCC 8051 Tools Into The Silicon Labs IDE

http://www.silabs.com/public/documents/tpub_doc/anote/Microcontrollers/en/an198.pdf
http://www.silabs.com/public/documents/software_doc/othersoftware/Microcontrollers/en/AN198SW.zip

Take a look at www.dunfield.com. He has a C compiler & assembler for the 
8051. It requires 16 bit msdos and is old fashioned, which was the reason for
buying. The avr I am using & the 8051, at least the 8k, 16k, 32k versions, 
don't overpower even old compilers.

Hul


larwe <zwsdotcom@gmail.com> wrote:
> Has anyone here used the new 0.9V single-cell 8051 parts with sdcc? I
> am keen to experiment with these chips, and I'd prefer to work in C,
> but I'm not paying for a Keil license just for playing around.

> Thanks!

On Apr 4, 8:13=A0am, larwe <zwsdot...@gmail.com> wrote:
> Has anyone here used the new 0.9V single-cell 8051 parts with sdcc? I
> am keen to experiment with these chips, and I'd prefer to work in C,
> but I'm not paying for a Keil license just for playing around.

I tried to download their Windows program that lets you play with
different power dissipation scenerios, but they made me register
first. So I registered, and that was a week ago. I'm still waiting.

I don't want to be a member of a secret club. If they won't let me
play with their stuff, then so be it.

MSP430's are still a great choice for low power requirements. The main
thing that interested me in the siLabs devices is the built-in
switching power supply. It has enough current to power some other
stuff, also.

Eric

On Apr 7, 12:56 pm, Eric <englere_...@yahoo.com> wrote:

> I tried to download their Windows program that lets you play with
> different power dissipation scenerios, but they made me register
> first. So I registered, and that was a week ago. I'm still waiting.

There shouldn't have been any waiting at all - when I downloaded it
the other day, clicking submit on the registration info took me direct
to the download page for the utility.

> MSP430's are still a great choice for low power requirements. The main
> thing that interested me in the siLabs devices is the built-in
> switching power supply. It has enough current to power some other

This is exactly why I am interested in it. The part is more or less
perfect for us - 65mW out of the switcher is very well dimensioned to
our need for about 15mA @ 1.9V :)