发送短信时 GSM CMS 错误 512
我正在编写一个应用程序，通过带有串行端口的 GSM 调制解调器发送短信。我已经能够使用 MessagingToolkit 库发送短信了几天，但突然我无法再发送短信了。
根据日志，这是由于网络错误造成的。我发现我面临的“标准”错误是： CMS 错误：512 用户中止
我在此处找到了错误代码列表 http://www.smssolutions。 net/tutorials/gsm/gsmerrorcodes/ 但我找不到有关该错误的任何进一步解释。
有熟悉 GSM 的人知道这个错误是什么吗？
当我初始化调制解调器时，我还从启动配置中收到此错误消息，它可能与 512 错误有关： 2011.04.11-09.23.16：发送：AT+COPS=0,2 2011.04.11-09.23.17: 命令 AT+COPS=0,2 错误：错误
谢谢！
I'm programming an app to send SMS through a GSM modem with the serial port. I've been able to send SMS for a couple of days using the MessagingToolkit library but suddennly I'm not being able to send SMS anymore.
According to the logs this is due to a Network error. I found out that the "standard" error that I'm facing is:
CMS ERROR: 512 User abort
I found a list of error codes here http://www.smssolutions.net/tutorials/gsm/gsmerrorcodes/ but I can't find any further explanation on the error.
Does anyone that's familiar with GSM knows what's this error about?
When I'm initializing the modem I also get this error message from the starting configurations, it might be related to the 512 error:
2011.04.11-09.23.16: Sending: AT+COPS=0,2
2011.04.11-09.23.17: Error in command AT+COPS=0,2 : ERROR
Thanks!
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您是否已确认您已向运营商正确注册？您可以通过发送 AT+CREG 来做到这一点？
关于 AT+COPS 错误消息。您似乎没有发送足够的参数。
AT+COPS=,[,[,]]
您是否尝试手动选择运营商而不是让调制解调器采用 SIM 卡的默认运营商设置？
Have you verified that you are registered with your operator properly? You can do this by sending a AT+CREG?
Regarding the AT+COPS error message. It seems like you aren't sending enough parameters.
AT+COPS=<mode>,[<format>,<oper>[,<AcT>]]
Are you trying to manually select an operator rather than letting the modem take the default operator setup with the SIM card?