安信可NB-IoT模组测评——关于CH340失效的某种猜测
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本帖最后由 tobot 于 2021-12-16 21:50 编辑
在前一封测评(https://bbs.eeworld.com.cn/thread-1189153-1-1.html)中,我提到怀疑由于CH340失效导致无法读取信息,另外使用J1的2、3作为输出,成功进行了升级和少量命令测试。
考虑到通用性,今天尝试用arduino板(WeMos D1)对其进行控制,突然发现arduino板编译通过后无法写入数据,提示为
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
这个比较奇怪,一般出现在芯片无法写入的情况,似乎和昨天类似,再到“设备管理器”查看,果然也是CH340的芯片。
是否是这款USB芯片在特定环境下无法工作呢?我使用DH11测试数据如下:
Humidity (%): 8.00
Temperature (oC): 22.00
Temperature (oF): 71.60
Temperature (K): 295.15
湿度18%,气温22℃,湿度稍低。
也许需要过了这个冬天才能继续试验?
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