I am using a F28M35 processor and LWIP for serving web pages and wanted some recommendations on accommodating larger websites. All the example LWIP projects have small webpages that fit into internal flash. A utility called makefsfile.exe creates a flat file system that outputs to lmi-fsdata.h. The generated header file is a dead simple way to get a website running on the Concerto platform. However, this method is limited to internal flash.
I was hoping to gets some recommendations/discussion on the best ways of expanding the flash to accommodate larger websites. Ideally, I wish I could install a large external flash chip, boot from it, and program it using JTAG, just like I was doing with the internal flash. I could not find promising/detailed threads on the topic. I have some alternative ideas below, but wanted to run it by the community before I waste tons of time on an inferior implementation.
- Serial Communication: I would need to create a new utility for creating a flat files system and a utility for adding the pages to the FLASH. On startup a lookup table to all the pages is loaded into ram and whenever a page is requested they are loaded over SPI. Seems like a lot of work and degraded performance.
- EPI: No clue how this works -- seems like it is mostly used for external RAM. Have people used this with flash? Is there going to be any performance advantage over SPI?
