pmbus在avr32开发板平台上tiny24中的实现。-This is PMBus 1.1 [0] software intended to replace the firmware found in the "Board Controller" [1] on the Atmel ATNGW100 [2], which is a low cost [$US 90] Linux-oriented board suitable for developing and deploying AVR32

Atmel avr32 architecture series usb dfu(device firmware update) bootloader operation manual.