问题：
Arduino:1.6.3 (Windows 7), 板："Arduino Pro or Pro Mini, ATmega328 (5V, 16 MHz)"
Sketch uses 846 bytes (2%) of program storage space. Maximum is 30,720 bytes.
全局变量使用了9字节，(0%)的动态内存，余留2,039字节局部变量。最大为2,048字节。
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xec
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xec
上传出错。查看页面 http://www.arduino.cc/en/Guide/Troubleshooting#upload 获取建议。
报告将会包含更多的信息
"在编译时，输出详细信息"
解决方法：
用usb转ttl接好线，
键在于按RESET键的时间,差不多刚刚点下烧写的按钮之后,就可以按RESET键了.尝试几次应该就可以发现规律了。
也可以通过出现“上传…”字样，马上按下复位键。
参考：
http://www.geek-workshop.com/thread-8436-1-1.html
Arduino Pro or Pro Mini, ATmega328 (5V, 16 MHz)成功烧录方法
原文：http://www.cnblogs.com/smbx-ztbz/p/4656338.html