Porting ATSAM4LC4 code into ATSAM4LC2

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I've been using the SAM4L XPLAINED PRO development board that has an ATSAM4LC4 chip on it for a new project. Now I'm ready to design the actual board, and I was wondering: I only use the USB (for USB Flash drive host, to read pendrive files using the FATFS code) and the SPI interface with DMA. Nothing else. And so, I've been looking into the ATSAM4LC2 chips and looks to me that they'll do the job just as good. They run at 48MHz, have 32k of RAM, have USB, SPI, DMA... they really differ on FLASH amount and I/O's, but I don't need more than what it has.

 

Well, I've compared those devices side by side for about 20 minutes, but I thought I'd come ask the pros before making this board: If I only need the USB & SPI+DMA, and no more than 64k of FLASH, can I use the 48-pin ATSAM4LC2 instead of the 100-pin ATSAM4LC4?

Last Edited: Thu. Jul 13, 2017 - 06:07 AM
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What makes you think that an ARM chip is a UC3 chip? I'll move the tread.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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Ops sorry :)

I'm kind of a forum noob