AVR BOOTLOADER • Support many types of AVR microcontrollers. • Support AVR device with multi-uart. • Support RS232/RS485/RS422 mode. -Support AES crypt routine (128/256 bits key) • Support customize communication baud

利用128开发板，并通过AVR软件实现看门狗的实验。-With a 128 board, and to achieve through the AVR software watchdog experiment.

AVR单片机教程，实例程序，并附有电路图，AVR片内集成多种频率的RC振荡器、上电自动复位、看门狗、启动延时等功能，外围电路更加简单，系统更加稳定可靠(AVR microcontroller tutorial, example program, and circuit diagram, AVR chip integrates multiple frequency RC oscillator, power on auto reset, watchdog, startup delay and oth