lte_ble_gateway sample application gets a kernel panic

Question

I have reprogrammed the nRF52840 board controller. When I run the lte_ble_gateway application I get the following on the 2nd dev kit VCP port: 
 
 SPM: NS image at 0xc000 SPM: NS MSP at 0x2002bc90 SPM: NS reset vector at 0x14b7d SPM: prepare to jump to Non-Secure image. ***** Booting Zephyr OS v1.14.99-ncs2 ***** Application started Initializing Bluetooth.. Establishing LTE link (this may take some time) ... ASSERTION FAIL [err == 0] @ ../src/main.c:515 LTE linBluetooth ready k could noScanning... be established. ***** Kernel Panic! ***** Current thread ID = 0x20023e34 Faulting instruction address = 0x32372 
 
 The board controller VCP (3rd port) gives: 
 ***** Booting Zephyr OS v1.14.99-ncs2 ***** 
 
 It looks like the problem is in lte_lc_init_and_connect(), Any ideas on what is wrong? 
 
 512 printk("Establishing LTE link (this may take some time) ...
");
 513 display_state = LEDS_CONNECTING;
 514 err = lte_lc_init_and_connect();
 515 __ASSERT(err == 0, "LTE link could not be established.");
 516 }
 517 }

Steven Grunza · Answer

It took three tries to get the certificate to work. The key was to use the HWID on the back of the dev kit and not the PIN on the iBasis SIM card. 
 
 Also re-compile the app used to enter the certificate to remove the global ASSERT(). The app gets too slow with global ASSERT() and the LTE Link Monitor times out the command before the OK gets returned. 
 
 The asset_tracker application can connect and report the flip-switch state. The GPS address is wrong since I'm on the v1.0.0 which doesn't do real GPS data. I'm on the master branch now but those problems will be a different ticket.

lte_ble_gateway sample application gets a kernel panic

Top Replies