GSM/GPRS/GNSS Module Series
MC60 Series Hardware Design
MC60_Series_Hardware_Design Confidential / Released 45 / 114
1. MC60 is set to autobauding mode (
AT+IPR=0
) by default. In autobauding mode, URC
RDY
is not
reported to the host controller after the module is powered on. When the module is powered on after
a delay of 4s~5s, it can receive AT commands. Host controller should first send an
AT
string in order
that the module can detect baud rate of host controller, and it should continue to send the next
AT
string until receiving
OK
string from the module. Then enter
AT+IPR=x;&W
to set a fixed baud rate
for the module and save the configuration to flash memory of the module. After these configurations,
the URC
RDY
would be received from the UART Port of the module every time when the module is
powered on. For more details, refer to the section
AT+IPR
in
document [1]
.
2. When AT command is responded, it indicates the module is turned on successfully; or else the
module fails to be turned on.
The other way to control the PWRKEY is through a button directly. While pressing the key, electrostatic
strike may generate from the finger, and thus, a TVS component is indispensable to be placed nearby the
button for ESD protection. For the best performance, the TVS component must be placed nearby the
button. A reference circuit is shown in the following figure.
PWRKEY
S1
Close to
S1
TVS
Figure 17: Turn on the Module with a Button
Command
AT+QGNSSC=1
should be sent to enable the GNSS power supply after the GSM part is
running. When the GNSS_VCC is valid, the GNSS will enter into full on mode automatically. The turn-on
timing is illustrated in the following figure.
NOTES
Quectel
Confidential
