8 years, 11 months ago.

u-blox modem halted

Good day!

I am using several u-blox modems (SARA-G350-00S-00) and I want to use them in 24/7 mode. However, the modems do not work in this way - they stops responding unexpectedly from time to time. The procedure power-on/power-off, like in the example: SARA-U2/LISA-U2 50..80us

pin = 0; ::wait_us(50);

pin = 1; ::wait_ms(10);

SARA-G35 >5ms, LISA-C2 > 150ms, LEON-G2 >5ms

pin = 0; ::wait_ms(150);

pin = 1; ::wait_ms(100);

purge any messages

purge();

check interface

sendFormated("AT\r\n");

did not help.

The modem stops responding on a command: 00:09:07.601 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:07.701 [MDM] <<< (009): AT+CGMM\r\n

00:09:17.701 [MDM] Modem halted (timeouted). Execute full re-init [FAIL]

00:09:28.461 [MDM] <<< (004): AT\r\n

00:09:28.489 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:28.589 [MDM] <<< (007): AT E0\r\n

00:09:28.619 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:28.719 [MDM] <<< (011): AT+CMEE=2\r\n

00:09:28.749 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:28.849 [MDM] <<< (005): ATI\r\n

00:09:28.880 [MDM] >>> (020): [UNKN] \r\nSARA-G350-00S-00\r\n

00:09:28.886 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:28.986 [MDM] <<< (016): AT+UGPIOC=16,2\r\n

00:09:29.017 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:30.018 [MDM] <<< (010): AT+CPIN?\r\n

00:09:30.048 [MDM] >>> (016): [ ++ ] \r\n+CPIN: READY\r\n

00:09:30.055 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:30.155 [MDM] <<< (009): AT+CGMI\r\n

00:09:30.186 [MDM] >>> (010): [UNKN] \r\nu-blox\r\n

00:09:30.193 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:30.293 [MDM] <<< (009): AT+CGMM\r\n

00:09:40.293 [MDM] Modem halted (timeouted). Execute full re-init [FAIL]

00:09:51.053 [MDM] <<< (004): AT\r\n

00:09:51.081 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:51.181 [MDM] <<< (007): AT E0\r\n

00:09:51.211 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:51.311 [MDM] <<< (011): AT+CMEE=2\r\n

00:09:51.341 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:51.441 [MDM] <<< (005): ATI\r\n

00:09:51.473 [MDM] >>> (020): [UNKN] \r\nSARA-G350-00S-00\r\n

00:09:51.479 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:51.579 [MDM] <<< (016): AT+UGPIOC=16,2\r\n

00:09:51.610 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:52.611 [MDM] <<< (010): AT+CPIN?\r\n

00:09:52.644 [MDM] >>> (016): [ ++ ] \r\n+CPIN: READY\r\n

00:09:52.652 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:52.752 [MDM] <<< (009): AT+CGMI\r\n

00:09:52.782 [MDM] >>> (010): [UNKN] \r\nu-blox\r\n

00:09:52.791 [MDM] >>> (006): [ OK ] \r\nOK\r\n

00:09:52.891 [MDM] <<< (009): AT+CGMM\r\n

00:10:02.891 [MDM] Modem halted (timeouted). Execute full re-init [FAIL]

Could you suggest how to overcome this?

Regards, Vladimir.