I got Thingy:91 and want to install at_client to it, but it doesn't work well.
What I did is
1. Check out a pull request and update firmware referring to this link
2. Connect j-link and usb to Thingy:91.
3. Open LTE Link Monitor.
It always restarts and never accepts at command.
Any tips?
Hi! First, you have to uncheck the "Auto device/port filter" option in the bottom right corner, see picture below. Then make sure you are connected to the correct COM port, the Thingy:91 has two. Then keep power cycling the device (switching it on and off), resetting LTE Link Monitor (CTRL + R) until you get a connection.
Could you provide the Log output if it still doesn't work when you try this?
Best regards,
Heidi
I think I did as you instruct, but it doesn't work out.
Could you tell me exact procedure in each step? What does "the keep power cycling the device (switching it on and off)" mean?
Also, LTE Link Monitor communicates with device through USB, not J-Link, right?
This is the log. I don't know why LTE Link Monitor uses USB Port1, even though I select Port 12 or 13..
2019-09-09T01:35:52.437Z INFO Application data folder: C:\Users\yusuke.fukuhara\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2019-09-09T01:35:52.519Z DEBUG App pc-nrfconnect-linkmonitor v1.1.1 official
2019-09-09T01:35:52.519Z DEBUG App path: C:\Users\yusuke.fukuhara\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2019-09-09T01:35:52.519Z DEBUG nRFConnect 3.2.0 is supported by the app (^3.2.0)
2019-09-09T01:35:52.519Z DEBUG nRFConnect path: C:\Users\yusuke.fukuhara\AppData\Local\Programs\nrfconnect\resources\app.asar
2019-09-09T01:35:52.519Z DEBUG HomeDir: C:\Users\yusuke.fukuhara
2019-09-09T01:35:52.519Z DEBUG TmpDir: C:\Users\YUSUKE~1.***\AppData\Local\Temp
2019-09-09T01:35:52.521Z VERBOSE Could not fetch serial number for serial port at COM1
2019-09-09T01:35:55.382Z INFO Modem port is opened
2019-09-09T01:35:55.388Z DEBUG modem >> AT+CFUN?\x0D\x0A
Additionally, should I update firmware?
Yes, to flash an already built .hex file you should use the Programmer application. To do this, connect the J-link cable to the thingy and the DK like in the picture.
Then, select device "PCA10090".
Select "Add HEX file" and add the at_client example. Then select "Erase & write". When it's done, you can select "Read" to make sure the file was flashed. Then the at_client example should be running on your Thingy and you can use LTE Link Monitor to confirm by communicating with the modem using AT commands.
