Hi All, I have to build a small FPGA based "memory controller", which should use the FLASH memory contents to reconfigure some others FPGAs from time to time. The whole thing will work in irradiated area, so there is a need for memory errors detection and refreshing the memory contents, when it's getting corrupted. Anyway I need to implement a FPGA based FLASH memory controller, and when I've checked the FLASH memory interface standards I got really upset. Because of my special environment (radiation!) I prefer controllerless FLASHes. I've found two standards: SmartMedia (description may be found eg. in this datasheet: http://samsungelectronics.com/semiconductors/Flash/SmartMedia/64M_Byte/K9S1208V0M/k9s1208v0m.pdf ) and CFI (description may be found there: ftp://download.intel.com/design/flcomp/applnots/29220404.pdf ) Unfortunately both are so complicated, that I'm not sure if the suitable controllers will fit in the reasonable FPGA... Are there any simpler FLASH memory interface standards? -- TIA & best regards, Wojciech M. Zabolotny http://www.ise.pw.edu.pl/~wzab <--> wzab@ise.pw.edu.pl http://www.gnupg.org Gnu Privacy Guard - protect your mail & data with the FREE cryptographic system -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads