Lpc2000

I've done 2 designs with LPC parts and they were good.  I was just designing in another AT91SAM7X256 for a new project, but since I saw the STR912 I am dropping the Atmel and changing the design over to the ST part right now.  I need a lot of I/O along with Enet, USB, and built in flash.  LPC does not have anything close to that yet.  The Atmel part was one of the few choices but I had to add a Altera MAXII CPLD as well to get enough I/O.

The STR912 has 80 pins of I/O, Enet, USB, Flash, and ARM9.  Much faster than the ARM7 CPUs and now with the STR912 I don't need the CPLD at all.  Better performance, lower total cost, and smaller PCB size.

Moreover, the STR91X's have 2 separate groups of flash memory.  That's very cool.  I don't need another EEPROM for parameter storage.  You can write to the smaller flash while still excecuting code in the main Flash.  Can't do that with the LPCs.

I've looked at a lot of the ARM7/9 parts out there and these new ones from ST are very hot.  They have a lot of great features, and where most ARM9 parts require separate SRAM and Flash, these have that built in.  That saves a ton of pins.  If you need a lot of I/O and these other features, right now I think the ST parts are at the top of the list.

Chris.

 


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