On Mon, Jan 28, 2013 at 12:39 AM, Isaac Marino Bavaresco wrote: > Try Atmel's ATSAM3 series (ARM Cortex-M3). Some devices have high-speed > USB device or mini-host and they also have SD/SDIO interface. > I use the ATSAM3X8E, it has both interfaces. Looks like a nice one. Last time we tried to get some free demo boards from Atmel to support the open source libusbK project, but we only manage to get the 8bit AVR (full speed USB) and 32bit AVR (high speed USB) since the guy I contacted is from the AVR division, not the SAM division. The 32bit AVR use is a high speed USB device, but the USB FIFO is limited so it can not achieve the full potential of high speed USB. http://code.google.com/p/usb-travis/source/browse/#svn%2Ftrunk%2FBmFW%2FAVR= %2FASF%2FBenchmark This SAM3X8E seems to have 4K USB FIFO and that is good. > Free Atmel toolchain (GCC), no O.S., excellent Atmel's ASF (Application > Software Framework) with lots of examples and available in TQFP package. The Atmel Studio 6 (now support AVR and ARM) is based on Microsoft Visual Studio Shell, so it is a bit big. But with better computers it should be okay. I have only tried the Studio 5 (AVR 8bit/32bit, no ARM) and ASF though. --=20 Xiaofan --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .