在么,想请教一些关于atmega16a的问题。我这提示出错usavrdude: AVR device initialized and ready to accept instructions烧录引导程序出错。Reading | ################################################## | 100% 0.05savrdude: Device signature = 0x1e9403avrdude: Expected signature for ATmega8 is 1E 93 07 Double check chip, or use -F to override this check.avrdude done. Thank you.请问是什么原因