Dne pátek 15 červen 2007 13:57 Eduardo Morras napsal(a): > At 14:18 13/06/2007, you wrote: > >I do not need it actually, but i am so inquisitive. > > > >I have heard that sqlite has been ported to AVR too. > >How may be solved the main storage solved on it? > >So for example, i have system with ATmega64 with 128KB of external SRAM. > >The whole ram is organized as static 60KB and 18 pages of 4KB (the last > > 4KB page lays in the internal RAM shadow), but it can be simlply > > reconfigured because the memory address logic is provided by programmable > > logic device (CPLD) > > > >As the firm data storage memory is there 1MB spi dataflash, but there is a > >possibility to replace it with 16MB chip with the same interface for an > >example. > > > >I am at 230th page of Mike Owen's book The definitive Guide to > >SQLite and with > >every next page, my image of SQL on a chip w/o OS disappears in haze. > > > >Is i wrote before, i do not need it actually, i use sqlite in linux > >environment. > > > >Thank you for let you make me a picture. > > > >Jakub Ladman > > 128KB RAM is very low. I have run it on powerpc 440 device with
Yes and that is the reason, why i am asking. Somebody wrote here at mailing list, that he has ported sqlite to some architectures and the given list contains AVR eight bit risc microcontroller. At the moment, when i understood how sqlite works, i have started to have doubts that's it even possible. Jakub Ladman > uclinux but with more ram (1GB). There is minimalist os that can be > fit on a few KB, check contiki and contiki mail-list > http://www.sics.se/contiki/ > https://lists.sourceforge.net/lists/listinfo/contiki-developers it's > used on commodore 64 and other relics. I used it before in a > development card (Virtex II Pro - xupv2p). You can cut down contiki > and sqlite features. The problem will be the stack/heap that sqlite > needs for run. I don't know about ATmega64 but can't you add a fpga > with dram controller? Perhaps using a free i/o port or changing the > cpld with the fpga? > > HTH > > ---------------------------------------------------------- > "General error, hit any user to continue." > > > --------------------------------------------------------------------------- >-- To unsubscribe, send email to [EMAIL PROTECTED] > --------------------------------------------------------------------------- >-- ----------------------------------------------------------------------------- To unsubscribe, send email to [EMAIL PROTECTED] -----------------------------------------------------------------------------
