【求助】arduino nuo上传失败的原因到底是咋回事呀？
Sketch uses 3688 bytes (11%) of program storage space. Maximum is 32256 bytes.Global variables use 292 bytes (14%) of dynamic memory, leaving 1756 bytes for local variables. Maximum is 2048 bytes.avrdude: stk500_initialize(): (b) protocol error, expect=0x10, resp=0xfcavrdude: initialization failed, rc=-1Double check connections and try again, or use -F to overridethis check.Failed uploading: uploading error: exit status 1提示以上信息，数据线换了也还是不行，确认驱动也没问题，串口和板子型号都对的上，因为第一次上传时成功的，测试之后没问题准备再加个功能，然后就不好使了，会不会是板子本身的问题？被困扰的抓心挠肝，项目卡住了（拼xx上买的，首次使用和上传都没问题...）
@DFEDU 把板子上的线都拔掉，上传一个最简单的程序看看。看是不是串口被占用导致的报错。https://mindplus.dfrobot.com.cn/FAQ#3-%E4%B8%8A%E4%BC%A0%E6%A8%A1%E5%BC%8F%E9%97%AE%E9%A2%98%EF%BC%9A
【求助】arduino nuo上传失败的原因到底是咋回事呀？
1、先上传简单的点灯程序<div>void setup() {</div><div>pinMode(LED_BUILTIN, OUTPUT);</div><div>}</div><div>
</div><div>void loop() {</div><div>digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)</div><div>delay(1000); // wait for a second</div><div>digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW</div><div>delay(1000); // wait for a second</div><div>}</div>
排除开发板设置与数据线的是否有问题
2、如果开发板与数据线没事，好好优化修改项目代码
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