Hello hl78xx modem driver

Overview

A simple sample that can be used with only Sierra Wireless HL78XX series modems

Notes

This sample uses the devicetree alias modem to identify the modem instance to use.

Building and Running

This application can be built and executed on QEMU as follows:

west build -b None samples/drivers/modem/hello_hl78xx
west flash

To build for another board, change “qemu_x86” above to that board’s name.

Sample Output

[00:00:12.840,000] <inf> hl78xx_socket: Apn="netfeasavodiot.mnc028.mcc901.gprs"
[00:00:12.840,000] <inf> hl78xx_socket: Addr=10.149.105.74.255.255.255.252
[00:00:12.840,000] <inf> hl78xx_socket: Gw=10.149.105.73
[00:00:12.840,000] <inf> hl78xx_socket: DNS=141.1.1.1
[00:00:12.840,000] <inf> hl78xx_socket: Extracted IP: 10.149.105.74
[00:00:12.840,000] <inf> hl78xx_socket: Extracted Subnet: 255.255.255.252
[00:00:12.840,000] <inf> hl78xx_dev: switch from run enable gprs script to carrier on
[00:00:15.944,000] <inf> main: IP Up
[00:00:15.944,000] <inf> main: Connected to network

**********************************************************
********* Hello HL78XX Modem Sample Application **********
**********************************************************
[00:00:15.980,000] <inf> main: Manufacturer: Sierra Wireless
[00:00:15.980,000] <inf> main: Firmware Version: HL7812.5.7.3.0
[00:00:15.980,000] <inf> main: APN: netfeasavodiot
[00:00:15.980,000] <inf> main: Imei: 351144441214500
[00:00:15.980,000] <inf> main: RAT: NB1
[00:00:15.980,000] <inf> main: Connection status: Not Registered
[00:00:15.980,000] <inf> main: RSRP : -97
**********************************************************

[00:00:15.980,000] <inf> main: Setting new APN:
[00:00:15.980,000] <inf> main: IP down
[00:00:15.980,000] <inf> main: Disconnected from network
[00:00:16.013,000] <inf> main: New APN: ""
[00:00:16.013,000] <inf> main: Test endpoint: flake.legato.io:6000
[00:00:17.114,000] <inf> main: Resolved: 20.29.223.5:6000
[00:00:17.114,000] <inf> main: Sample application finished.

After startup, code performs:

Modem readiness check and power-on
Network interface setup via Zephyr’s Connection Manager
Modem queries (manufacturer, firmware, APN, IMEI, signal strength, etc.)
Network registration and signal strength checks
Setting and verifying a new APN
Sending an AT command to validate communication