This was in regard to possible speed issues when writing to an SD card over spi and an alternative to write to internal flash. If handling FAT is an obstacle, raw data can be written to the memory and transferred with USB and sw in the PC which then writes to a file. If the device is battery operated, perhaps battery (or super cap) backed ram chips can be used as storage. Of course, data will be lost after a certain time. /Ruben On Fri, 13 May 2016 08:43:58 +0000, wrote: >> Perhaps you can use a USB flash drive instead of an SD card. The PIC wil= l >> need to be an MSD host for this. Flash drives can be very small today an= d >> they will take care of buffering, wear leveling and writing to the inter= nal >> flash. And you can easily move it to a PC when you want to transfer the = files. >=20 > I don't see that this will solve the problem, as he still needs to > handle the FAT file system. >=20 > On another note people keep talking about FAT having a 4GB limit - > it does for an individual file, but not for the disk size, Windows > will format a drive up to 32GB as FAT, special utilities will format > larger drives as FAT. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .