这个文件详细介绍了如何在avr系列高端单片机中移植ucLinux的bootloader。解释很详细，参照这个文件可以进行高端单片机的系统移植。-this document detailed information on how to avr series of high-end microprocessor transplant ucLinux the boo tloader. Explain in great detail, in the light of this document can be high-end microcontroller system transplantation.