at client 串口数据接收异常

发布于 2020-10-15 09:17:30 浏览：1634 订阅该版

RTTHREAD版本：4.0.3 build Oct 14 2020
组件都为最新的。使用ec200T-cn联网，1分钟发一条mqtt数据，连续运行5-6小时后会出现如下错误
```
[D/AT] sendline: 0000-0020: 41 54 2B 51 49 4F 50 45  4E 3D 31 2C 30 2C 22 54  43 50 22 2C 22 36 31 2E  31 35 33 2E 32 31 2E 32    AT+QIOPEN=1,0,"TCP","61.153.21.2
[D/AT] sendline: 0020-0040: 31 38 22 2C 31 31 38 38  33 2C 30 2C 31                                                               18",11883,0,1
[D/at.clnt] execute command (AT+QIOPEN=1,0,"TCP","61.153.21.218",11883,0,1) timeout (300 ticks)!
[E/mqtt] connect err!
[D/AT] sendline: 0000-0020: 41 54 2B 51 49 43 4C 4F  53 45 3D 30                                                                  AT+QICLOSE=0
[D/at.clnt] execute command (AT+QICLOSE=0) timeout (300 ticks)!
[E/mqtt] Net connect error(-2).
[D/[MQTT] ] inter mqtt_offline_callback!
[D/mqtt] restart!
[D/[MQTT] ] inter mqtt_connect_callback!
[D/mqtt] ipv4 address port: 11883
[D/mqtt] HOST = '61.153.21.218'
[D/AT] sendline: 0000-0020: 41 54 2B 51 49 4F 50 45  4E 3D 31 2C 30 2C 22 54  43 50 22 2C 22 36 31 2E  31 35 33 2E 32 31 2E 32    AT+QIOPEN=1,0,"TCP","61.153.21.2
[D/AT] sendline: 0020-0040: 31 38 22 2C 31 31 38 38  33 2C 30 2C 31                                                               18",11883,0,1
[D/at.clnt] execute command (AT+QIOPEN=1,0,"TCP","61.153.21.218",11883,0,1) timeout (300 ticks)!
[E/mqtt] connect err!
[D/AT] sendline: 0000-0020: 41 54 2B 51 49 43 4C 4F  53 45 3D 30                                                                  AT+QICLOSE=0
[D/at.clnt] execute command (AT+QICLOSE=0) timeout (300 ticks)!
[E/mqtt] Net connect error(-2).
[D/[MQTT] ] inter mqtt_offline_callback!
[D/mqtt] restart!
[D/[MQTT] ] inter mqtt_connect_callback!
[D/mqtt] ipv4 address port: 11883
[D/mqtt] HOST = '61.153.21.218'
[D/AT] sendline: 0000-0020: 41 54 2B 51 49 4F 50 45  4E 3D 31 2C 30 2C 22 54  43 50 22 2C 22 36 31 2E  31 35 33 2E 32 31 2E 32    AT+QIOPEN=1,0,"TCP","61.153.21.2
[D/AT] sendline: 0020-0040: 31 38 22 2C 31 31 38 38  33 2C 30 2C 31                                                               18",11883,0,1
[D/at.clnt] execute command (AT+QIOPEN=1,0,"TCP","61.153.21.218",11883,0,1) timeout (300 ticks)!
[E/mqtt] connect err!
[D/AT] sendline: 0000-0020: 41 54 2B 51 49 43 4C 4F  53 45 3D 30                                                                  AT+QICLOSE=0
[D/[selector] ] select 0 
[D/at.clnt] execute command (AT+QICLOSE=0) timeout (300 ticks)!
[E/mqtt] Net connect error(-2).
[D/[MQTT] ] inter mqtt_offline_callback!
[D/at.dev.ec200x] the power is off.
```
在这个串口外接一个usbttl监控发现实际模块是有相应的。如下
![91534.png](/uploads/20201015/c2255c931b9883cc3d725feae5023afe.png)

并且在命令行使用at cli可以获得正常响应。
ps的结果
```
ps
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
ec200x    16  suspend 0x000000c0 0x00000600    19%   0x0000000d 000
mqtt0     10  suspend 0x00000150 0x00001000    24%   0x00000001 000
tshell    20  running 0x000002bc 0x00001000    18%   0x00000008 000
at_clnt    9  suspend 0x0000010c 0x00000600    30%   0x00000005 000
task_man  25  init    0x00000048 0x00002800    00%   0x0000000f 000
vwdt_tes  24  suspend 0x000000d0 0x00001fa0    12%   0x00000005 000
master t  10  suspend 0x000000d4 0x00000200    47%   0x00000005 000
md_m_pol  21  suspend 0x00000168 0x00001000    10%   0x00000007 000
sys_work  23  suspend 0x00000094 0x00001000    21%   0x00000001 000
tcpip     10  suspend 0x0000012c 0x00000400    40%   0x00000014 000
etx       12  suspend 0x000000d8 0x00000400    21%   0x00000010 000
erx       12  suspend 0x000000e8 0x00000400    23%   0x00000010 000
tidle0    31  ready   0x00000058 0x00000200    34%   0x0000000b 000
timer      4  suspend 0x00000140 0x00002800    18%   0x00000001 000
main      10  suspend 0x000000d4 0x00001000    27%   0x00000011 000

```
请问这是为啥，是atclient的接收的问题么。