Please tell me what is the cheapest ARM with my request ip(100K annual)

No.

ASIC possible, not with ARM.

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rickee schrieb:

DO you REALLY need Linux? In the deeply embedded market Linux is not a slim swimmer, it's more like a fat hen.

To be really cheap better go for a small embedded RT kernel optimized for small systems. Your whole app probably will fit into the space you'd have to set aside for the linux kernel alone without any apps otherwise.

The smallest core available from ARM for integration into custom logic is the Cortex M0. And no, Linux is too big for it, and a full-blown Linux (not ucLinux) needs an MMU, which only comes with ARM9 and larger (the bigger cores).

NXP is the first to ship standard microcontrollers with the M1 core (LPC1700).

--
Mit freundlichen Grüßen

Frank-Christian Krügel

onhttp:/=>/

Thanks. But as I konw develop a chips like this kind of "SOC", it may take more than 2 years and very expensive, right?

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The Linux is not must be, fullfill the feature every OS is ok. Not by ARM also ok, I just concern the cost ,stable, and functional. And you recommend is develop by LPC1700? Any company provide the custom ip core? PLease let me kno how to do. Thanks

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Why do you need arm for that ? Look at what everyone else uses for the same product - most portable Audio systems and use custom power- optimised MP3 decode , and once you have that, an 8 bit core is enough. See the Atmel AT89C51SNDx series for one example.

-jg

It takes time, but not necessary very expensive. There are well known hardware and software libraries for mp3 decoders. If you do the IDCT in hardware, you can do the rest in a 8bit =B5C.

Yes, it's easy to find the MCU with MP3 decode even including USB, but we need CD Servo decode as well. We mainly coorperate with TOSHIBA and SAMSUNG, but the supply is not stable, and the software is not flexiable, so we would like to make one for ourselves. I know Atmel AT89C51SNDx , any other suggesttion?

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Come on guys. An own ARM core for 100k / year and a target price of $3 / system you are kidding right? The license is out of your league. What is your solution? Does it include the memory? It sounds like your solution now is a micro without internal memory. You need to look at system cost and let others know what is included in the system to make the best recommendations.

@Frank, NXP does not use the M1, NXP uses the M0 and the M3. Difference basically being the performance at the same clock speed and the size of the core itself. The LPC1700 is based on the M3.

@ rickee, the 89C51 is not going to cut it for your re

rickee skrev:

I think your reserach is wrong.

You should look at the Atmel AVR32 based AT32UC3A3 family.

1) AVR32 core beats ARM7/Cortex-M3 hands down on audio DSP. Can do MP3 etc in S/W, no sweat. 2) High speed USB OTG. 3) SD card support 4) Support for MLC NAND flash. 5) 128 kB SRAM in three banks (you need it for fast USB transfers) 6) Flash card interface supports ATA connection to CD.

Don't know the exact needs here.

Best Regards Ulf Samuelsson.

You may want to approach this from another angle. Try looking at reference designs based around an embedded OS like ThreadX.

Ports and reference designs are available for many chip suppliers like Renesas and others.

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