Dear Quectel Technical Support Team,
We are currently testing the GNSS standby mode of the MC60 module using PMTK commands. However, we are unable to establish communication with the GNSS UART interface.
According to the MC60 hardware design documentation, we connected the UART interface as follows:
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Pin 23 – GNSS_RXD
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Pin 24 – GNSS_TXD
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GND – Common ground
We connected our USB-to-UART converter with crossed TX/RX connections:
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USB-UART TX → MC60 GNSS_RXD, Pin 23
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USB-UART RX → MC60 GNSS_TXD, Pin 24
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USB-UART GND → MC60 GND
However, we are not receiving any response when sending PMTK commands for testing GNSS standby and wake-up modes.
Please share the recommended connection diagram and command sequence for testing GNSS standby mode.
We have attached the MC60 pin diagram for reference.
Thank you for your support.
Best regards,
Team Trakbond
