Going through EC200U Series QuecOpen File System API Reference Manual, I notice that the API has two classes of functions.
ql_fopen for “ordinary files” and
ql_nvm_fwrite only for config files on NVM.
The NVM functions say they are specifically for “simple configuration file”. The (Chinese) comments in the SDK say they are for less than 1kB of data. We have to specify the filename to read/write. I have three questions based on this:
- How can I see all the filenames that exist on the NVM already?
- How can I see the free space on the NVM?
- Which document explains the hardware architecture and capabilities of the EC200U… like various kinds of memory available (RAM, flash, NVM, etc.) and other hardware features?