I have a problem with the Quectel Evaluation Kit with chipset sc600t-em.
The problem is that the connection procedure fails. What should I do?
i am using the UART port
I suggest you use the serial port tool to debug and determine whether the serial port is faulty.
QCOM_V1.6.zip (715.5 KB)
I connect mc60 with usb to serial port and test with Qnavigate when i click Connect btn
/* Start AT SYNC: Send AT every 500ms, if receive OK, SYNC success, if no OK return after sending AT 10 times, SYNC fail /
[2022-07-04 11:19:52:040_S:] AT
[2022-07-04 11:19:52:156_R:] Å úá8èáøáôaìáèAT
[2022-07-04 11:19:53:089_S:] AT
[2022-07-04 11:19:53:122_R:] Åüòá~PaØáÜá
[2022-07-04 11:19:53:122_R:] ´áØá
[2022-07-04 11:19:53:122_R:] Üá´AT
[2022-07-04 11:19:53:612_R:] Å|á9”áôáôÅüýá1ìp óáÌáÌá AT
[2022-07-04 11:19:54:555_R:] ãdõáõ¬AT
[2022-07-04 11:19:55:009_R:] ãìûa½Þá þáøp öáöAT
[2022-07-04 11:19:55:493_R:] Åöúá=ÖAT
[2022-07-04 11:19:55:955_R:] Å º„ûáxþá îaÞáÞá öAT
[2022-07-04 11:19:56:448_R:] Å ~€ÿáXîAT
[2022-07-04 11:19:56:902_R:] Å¾aöáŸ
No OK return after 10 times, will pop out error message of SYNC fail, you may check below settings are correct and then connect to module again:
1.the module power on normally
2.serial port cable is connected
3.the baudrate in serial port parameter set is the same with module */
I test it but it is like Qnavigate
thanks, the problem was, my USB To Serial module. and i change it and solve .