SteveAA
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Hi All,
We are currently in the design process of a remote data logging system with the SIM7600 miniPCIe at its core. We are using the on board MQTT AT commands to both send field data to the IOT platform, as well as receiving system parameters for such things as motor speed, sample rates etc. Our initial prototype was based on a SIM7600SA-H and worked as expected.
As we did not need the high speed connection (only sending 2 data points every hour) We have recently purchased a number of SIM7600SA miniPCIe boards and noticed that they would not connect with our MQTT broker. Upon further investigation we found that the MQTT commands available on the "Non -H" boards were limited and not the full SIM7600SA-H spec. For instance these modules do not allow for a username and password with the AT+CMQTTCONNECT=0 command or the ability to select the MQTT version with the AT+CMQTACCQ command. Of course the first thing we checked was the firmware (AT+GMR) which came back as +GMR: LE11B01SIM7600M21-A
After some searching we came across the updater and attempted to flash the firmware, Using a USB adapter board plugged directly into the PC (i.e. no USB cable issues), however we are getting the following error.
First we load all the firmware files from the LE11B14SIM7600M22 file (is this the latest firmware for these???). These seem to load OK. Then press the "Start" tab and it proceeds to talk to the SIM module, after 29 seconds it fails with the error.
Has anyone come accross this error or have any ideas on how to fix this?
Any help woulf be appricated.
Regards
Steve
We are currently in the design process of a remote data logging system with the SIM7600 miniPCIe at its core. We are using the on board MQTT AT commands to both send field data to the IOT platform, as well as receiving system parameters for such things as motor speed, sample rates etc. Our initial prototype was based on a SIM7600SA-H and worked as expected.
As we did not need the high speed connection (only sending 2 data points every hour) We have recently purchased a number of SIM7600SA miniPCIe boards and noticed that they would not connect with our MQTT broker. Upon further investigation we found that the MQTT commands available on the "Non -H" boards were limited and not the full SIM7600SA-H spec. For instance these modules do not allow for a username and password with the AT+CMQTTCONNECT=0 command or the ability to select the MQTT version with the AT+CMQTACCQ command. Of course the first thing we checked was the firmware (AT+GMR) which came back as +GMR: LE11B01SIM7600M21-A
After some searching we came across the updater and attempted to flash the firmware, Using a USB adapter board plugged directly into the PC (i.e. no USB cable issues), however we are getting the following error.
First we load all the firmware files from the LE11B14SIM7600M22 file (is this the latest firmware for these???). These seem to load OK. Then press the "Start" tab and it proceeds to talk to the SIM module, after 29 seconds it fails with the error.
Has anyone come accross this error or have any ideas on how to fix this?
Any help woulf be appricated.
Regards
Steve