1 What is the 8-Bit MDFU Client Library?

The 8-Bit Microchip Device Firmware Update (MDFU) Client Library enables the creation of bootloaders for 8-bit microcontrollers (MCUs). The solution uses the new Microchip Firmware Image Builder (pyfwimagebuilder) tool to generate the application image file (.img) and Microchip Device Firmware Upgrade (pymdfu) host tool to program the new image. This library supports the 8-bit PIC^®, ATtiny, AVR^®Dx and AVR^®Ex family of devices by providing additional instructions through MCC notifications. A detailed list of supported devices is available in the Supported Devices and Families section. For more information and references, refer to the Microchip 8-Bit Bootloader web page.