Microchip Harmony and MLA both contain good fast file access libraries, supporting multiple backing stores including SD, MMC, CF-II, USB MSD, etc.  I suggest you give them a go since they are already tailored to the PIC32 chips.

Adapt fatFS library to PIC32
I asked this before, but still not successful. Hope someone can help me now... In the fiddle you see a responsive menu that has 4 menu-items horizontal inline when it is larger than 1000px. Smaller than 1000px the menu shows a nav-btn (now a RED box!) that onclick shows the menu-items, but when open and close and resize to larger than 1000px the rest of the 3 menu-items don't show up. I did some tests with media queries but i think the solution must be find in the javascript part. Anyone can handle this challenge?

Here the FIDDLE

$(function() {
$('.nav-btn').click(function(event) {
$('nav ul').fadeToggle(300);
});
});

