App note: USB/UART/Ethernet/SD card bootloader for PIC32 microcontrollers

A PIC32 bootloader that supports about every update channel possible: UART, USB-HID, USB-MSD, Ethernet, or SD cards.

This application note describes how to use bootloader to upgrade firmware on PIC32 devices without the need for an external programmer or debugger. The source code consists of following implementations of bootloader, 1) UART 2) USB device based on HID class 3) USB host based on MSD class 4) Ethernet 5) SD card

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