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Hi, I'm using RL-FlashFs to create files in external memory with an LPC2478.
I am doing a kind of database with JSON and I need to add and exluir records within files. But I am not able to position the FILE pointer to the line that I want to delete / edit.
Have you tried using fseek but without success. I also tried to use the operator "+ r" for reading and updating, but then always returns a NULL pointer.
Does anyone have a solution so I can write and escluir lines in the middle of a file?
Good morning, thanks for the reply! I looked at the documentation that passed me, and also consulted on this link fopen (http://www.keil.com/support/man/docs/rlarm/rlarm_fopen.htm)
The boot process and format the driver I'm doing, and at this point everything is ok. The problem occurs when I try to change the data of a file.
What I'm trying to do is write in the middle of a file without erasing its contents. That's because I'm doing a database in memory NOR where the user can add, delete or edit the items in the table of DB.
From what I gather mode "r+" can not be used to open a file because it is not supported by the library. In this case I am looking for a way where it can be done this type of operation so that I can create this database.