On Thu, Sep 29, 2011 at 6:07 PM, IVP wrote: > there have been several posts lately about SDHC performance and > SPI. Basically it is very slow and not suitable for a high-end analyser. > Perhaps with RAM buffering > RAM buffering indeed. > For one application I'm even considering two microSD in parallel if > I stick with dsPIC SPI (>10MHz) > Yep, that's a good option. Especially with SD cards being $5/2GB. I wish I could still find smaller ones. > As you say, 50MHz might be the maximum clock speed, but it certainly > isn't a reliable indicator of overall write speed > That's true. The computer is giving me 50Mbit/s constant write on the cheapest piece of crap micro sd card I could find. There is hope. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .