# Uncategorized **URL:** https://forum.legato.io/c/uncategorized/1.md?page=1 [Latest](https://forum.legato.io/latest.md) · [Categories](https://forum.legato.io/categories.md) **Page:** 2 --- ## [LTE Band 7 does not work with R16.3 (Generic — GCF)](https://forum.legato.io/t/lte-band-7-does-not-work-with-r16-3-generic-gcf/6930)
**Author:** [@liem.le](https://forum.legato.io/u/liem.le)\ **Replies:** 44\ **Last updated:** [June 25, 2025, 8:25pm UTC](https://forum.legato.io/t/lte-band-7-does-not-work-with-r16-3-generic-gcf/6930 "2025-06-25T20:25:56Z")
We have an WP7609 development board and it has issues with connecting to the LTE band 7 BTS. However, if we downgrade the R16.0.1, it was able to connect fine. Is this the known limitation on R16.3 (Generic — GCF)? --- ## [Dtsoverlay support](https://forum.legato.io/t/dtsoverlay-support/6927)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 2\ **Last updated:** [June 11, 2025, 1:42pm UTC](https://forum.legato.io/t/dtsoverlay-support/6927 "2025-06-11T13:42:15Z")
In order to make a device tree change currently, I have to recompile the whole base image and push it to the device. This takes over an hour and also is not very flexible for development or different models of devices. T… --- ## [WP7607 unwanted rollbacks](https://forum.legato.io/t/wp7607-unwanted-rollbacks/6926)
**Author:** [@Elmoo](https://forum.legato.io/u/Elmoo)\ **Replies:** 1\ **Last updated:** [May 28, 2025, 10:37am UTC](https://forum.legato.io/t/wp7607-unwanted-rollbacks/6926 "2025-05-28T10:37:01Z")
Hi, I have experience unwanted device rollbacks in some cases with WP7607 module. It seems to be related to power down cycles in some environments. Legato system is marked good but rollback still occurs in some cases. S… --- ## [FX30S Connection timeout issue](https://forum.legato.io/t/fx30s-connection-timeout-issue/6925)
**Author:** [@elmanju07](https://forum.legato.io/u/elmanju07)\ **Replies:** 3\ **Last updated:** [May 28, 2025, 7:25am UTC](https://forum.legato.io/t/fx30s-connection-timeout-issue/6925 "2025-05-28T07:25:58Z")
hi @jyijyi When we connect the deviec threw ssh root@192.168.2.2 it is showing a connection timeout is coming and IP addresses showing and when we checked in the AT command port the deviec will register to the network … --- ## [Crash dump and syslog](https://forum.legato.io/t/crash-dump-and-syslog/5200)
**Author:** [@zuuuuk](https://forum.legato.io/u/zuuuuk)\ **Replies:** 6\ **Last updated:** [May 16, 2025, 8:52am UTC](https://forum.legato.io/t/crash-dump-and-syslog/5200 "2025-05-16T08:52:55Z")
Hello My program crasht and i get core dump file and syslog file. SIGNAL: 11, ADDR (nil), AT 0xb6c2b908 SI\_CODE 0x00000001 ILLEGAL ADDRESS (nil) LEGATO VERSION 20.04.0\_2ea965e52e94cd5936a25400966763a5\_modified what… --- ## [WP7607-1 with Legato 21.05, tcp-server not working as expected](https://forum.legato.io/t/wp7607-1-with-legato-21-05-tcp-server-not-working-as-expected/6881)
**Author:** [@buepawe](https://forum.legato.io/u/buepawe)\ **Replies:** 10\ **Last updated:** [January 22, 2025, 12:48pm UTC](https://forum.legato.io/t/wp7607-1-with-legato-21-05-tcp-server-not-working-as-expected/6881 "2025-01-22T12:48:36Z")
I have an old legato app running fine with legato 19.2 and yocto 3.18. Now with new generations of wp7607-1 modules I have to use legato 21.05 and linux 4.14. I was able to compile and install yocto with additional progs… --- ## [Select Legato Packages](https://forum.legato.io/t/select-legato-packages/2625)
**Author:** [@Allyson](https://forum.legato.io/u/Allyson)\ **Replies:** 7\ **Last updated:** [April 8, 2025, 1:17pm UTC](https://forum.legato.io/t/select-legato-packages/2625 "2025-04-08T13:17:09Z")
Hello Guys, I’m new here. I have issue about how to select packages from legato. For example: In legato-17.07.1 has a 3rdParty pjsiip. How build it in my legato system? Regards, Allyson --- ## [Example of VOIP by using streamMedia application](https://forum.legato.io/t/example-of-voip-by-using-streammedia-application/6903)
**Author:** [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Replies:** 0\ **Last updated:** [April 8, 2025, 1:29pm UTC](https://forum.legato.io/t/example-of-voip-by-using-streammedia-application/6903 "2025-04-08T13:29:08Z")
Example of VOIP by using StreamMedia application: --- ## [Example on compressing and decompressing WP76xx audio with ffmpeg](https://forum.legato.io/t/example-on-compressing-and-decompressing-wp76xx-audio-with-ffmpeg/6900)
**Author:** [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Replies:** 0\ **Last updated:** [April 6, 2025, 6:59am UTC](https://forum.legato.io/t/example-on-compressing-and-decompressing-wp76xx-audio-with-ffmpeg/6900 "2025-04-06T06:59:31Z")
Here is an example on compressing and decompressing WP76xx audio with ffmpeg: --- ## [Questions about the WP7607 voltage range](https://forum.legato.io/t/questions-about-the-wp7607-voltage-range/6888)
**Author:** [@sfatyushkin](https://forum.legato.io/u/sfatyushkin)\ **Replies:** 3\ **Last updated:** [February 3, 2025, 12:30pm UTC](https://forum.legato.io/t/questions-about-the-wp7607-voltage-range/6888 "2025-02-03T12:30:02Z")
Hi all! According to the datasheet, the operating supply voltage is 3.4…4.3V, the absolute maximum voltage is 5.5V. That is, the module is designed to operate from a lithium battery. If the battery voltage drops belo… --- ## [ESP32 as wifi module in Legato 21.05.0](https://forum.legato.io/t/esp32-as-wifi-module-in-legato-21-05-0/6858)
**Author:** [@pmark](https://forum.legato.io/u/pmark)\ **Replies:** 15\ **Last updated:** [January 8, 2025, 1:23pm UTC](https://forum.legato.io/t/esp32-as-wifi-module-in-legato-21-05-0/6858 "2025-01-08T13:23:32Z")
I have a ESP32 kernel module using SPI working from the command line on WP7702, What do i have to change so the wifiService will work with ESP32 instead of a TI module ? Dec 19 15:23:09 swi-mdm9x28-wp user.info Legato:… --- ## [CDC-ECM data connection failing](https://forum.legato.io/t/cdc-ecm-data-connection-failing/6825)
**Author:** [@12214](https://forum.legato.io/u/12214)\ **Replies:** 5\ **Last updated:** [November 6, 2024, 6:02am UTC](https://forum.legato.io/t/cdc-ecm-data-connection-failing/6825 "2024-11-06T06:02:20Z")
I have a Linux PC (Ubuntu 20.04 LTS) and WP7605 (devkit) connected with USB cable, and I am building an environment where I can connect to the internet from my Linux PC via CDC-ECM. I referred to the following URL, but … --- ## [Guidance Needed for Setting Up a Custom IoT Solution Using Legato Framework](https://forum.legato.io/t/guidance-needed-for-setting-up-a-custom-iot-solution-using-legato-framework/6860)
**Author:** [@daisynaive96](https://forum.legato.io/u/daisynaive96)\ **Replies:** 1\ **Last updated:** [December 27, 2024, 4:54am UTC](https://forum.legato.io/t/guidance-needed-for-setting-up-a-custom-iot-solution-using-legato-framework/6860 "2024-12-27T04:54:41Z")
Hello everyone, I’m currently working on a project to develop a custom IoT solution using the Legato Framework, and I’d appreciate some guidance from the community. Here’s a brief overview of my setup and the challenges… --- ## [Compile Legato application with debug information to print readable stack backtrace](https://forum.legato.io/t/compile-legato-application-with-debug-information-to-print-readable-stack-backtrace/6839)
**Author:** [@gilles.deborger](https://forum.legato.io/u/gilles.deborger)\ **Replies:** 1\ **Last updated:** [November 21, 2024, 4:25pm UTC](https://forum.legato.io/t/compile-legato-application-with-debug-information-to-print-readable-stack-backtrace/6839 "2024-11-21T16:25:23Z")
I am trying to print a readable stack backtrace when handling signals (e.g. SIGV). Currently the backtrace does not contain any references to functions in my source code: 0) /legato/systems/current/appsWriteable/Colle… --- ## [Add custom library](https://forum.legato.io/t/add-custom-library/6835)
**Author:** [@pmark](https://forum.legato.io/u/pmark)\ **Replies:** 1\ **Last updated:** [November 14, 2024, 1:56pm UTC](https://forum.legato.io/t/add-custom-library/6835 "2024-11-14T13:56:20Z")
I want to add a custom shared library, I can compile it in yocto (using a separate computer) so it is in /usr/lib on the target But how would i add that to the leaf setup used for VSCode so i can compile against it in … --- ## [\#include \](https://forum.legato.io/t/include-bluetooth-bluetooth-h/6827)
**Author:** [@pmark](https://forum.legato.io/u/pmark)\ **Replies:** 5\ **Last updated:** [November 6, 2024, 1:11pm UTC](https://forum.legato.io/t/include-bluetooth-bluetooth-h/6827 "2024-11-06T13:11:48Z")
How to modify Legato so i can use #include \ Using WP7702, Legato 21.05.0 I also need glib.h hci.h and other stuff to make a bluetooth gatt app I have a modified yocto so wifi/bluetooth is ena… --- ## [Pointing process to bundled static files](https://forum.legato.io/t/pointing-process-to-bundled-static-files/6804)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 5\ **Last updated:** [October 7, 2024, 9:58pm UTC](https://forum.legato.io/t/pointing-process-to-bundled-static-files/6804 "2024-10-07T21:58:35Z")
Assume I have a web server and static web pages defined as a legacy app in an adef file like below: bundles: { file: { \[x\] $CURDIR/../../webserv /bin/webserv } dir: { $CURDIR/../../w… --- ## [Non-Legato Thread Initialization](https://forum.legato.io/t/non-legato-thread-initialization/6788)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 2\ **Last updated:** [September 12, 2024, 7:56pm UTC](https://forum.legato.io/t/non-legato-thread-initialization/6788 "2024-09-12T19:56:38Z")
Summary Is there any way to detect if a non-legato thread has already been initialized? Issue I am using Go so all concurrency is performed via Goroutines, as such the runtime routine scheduler handles thread lifetimes.… --- ## [Looking for Advice on Using Legato to Update Secure Firmware on IoT Devices](https://forum.legato.io/t/looking-for-advice-on-using-legato-to-update-secure-firmware-on-iot-devices/6767)
**Author:** [@jessyyywilliam](https://forum.legato.io/u/jessyyywilliam)\ **Replies:** 1\ **Last updated:** [July 17, 2024, 4:59am UTC](https://forum.legato.io/t/looking-for-advice-on-using-legato-to-update-secure-firmware-on-iot-devices/6767 "2024-07-17T04:59:04Z")
Hello Everyone :hugs:, I’m working on an endeavour right now that includes putting internet of things devices in a range of settings, a few of which are really sensitive and call for strong security measures. The proce… --- ## [How to get file from SD card](https://forum.legato.io/t/how-to-get-file-from-sd-card/6764)
**Author:** [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\ **Replies:** 3\ **Last updated:** [July 4, 2024, 7:35am UTC](https://forum.legato.io/t/how-to-get-file-from-sd-card/6764 "2024-07-04T07:35:40Z")
does this is mean already connect to sd-card ? if not, how to do? root@swi-mdm9x28-wp:~# dmesg | grep mmc \[ 1.279347\] sdhci\_msm 7864900.sdhci: No vmmc regulator found \[ 1.279362\] sdhci\_msm 7864900.sdhci: No vqmmc… --- ## [Event for cell id change? le\_mrc\_GetServingCellId](https://forum.legato.io/t/event-for-cell-id-change-le-mrc-getservingcellid/6752)
**Author:** [@pmark](https://forum.legato.io/u/pmark)\ **Replies:** 2\ **Last updated:** [June 14, 2024, 4:55pm UTC](https://forum.legato.io/t/event-for-cell-id-change-le-mrc-getservingcellid/6752 "2024-06-14T16:55:01Z")
Is the a event handler for Cell id changes that returns the same as le\_mrc\_GetServingCellId() ? --- ## [Update version linux for WP7502](https://forum.legato.io/t/update-version-linux-for-wp7502/6745)
**Author:** [@zuuuuk](https://forum.legato.io/u/zuuuuk)\ **Replies:** 7\ **Last updated:** [May 27, 2024, 2:09pm UTC](https://forum.legato.io/t/update-version-linux-for-wp7502/6745 "2024-05-27T14:09:01Z")
Good afternoon. I’m using WP7502. legato 20.04 There is a Linux image with version 3.14 for this modem. I need to update this module to a newer version of Linux. Could you advise me on a suitable Linux image from a d… --- ## [Create a Server for FwUpdate](https://forum.legato.io/t/create-a-server-for-fwupdate/6744)
**Author:** [@gi1](https://forum.legato.io/u/gi1)\ **Replies:** 7\ **Last updated:** [May 23, 2024, 8:07am UTC](https://forum.legato.io/t/create-a-server-for-fwupdate/6744 "2024-05-23T08:07:01Z")
Hello, I’m tring to download a firmware update from a remote server. Some points are not clear to me: The listening server what kind of service have to expose? http? ftp? What’s the default port to listen? once I hav… --- ## [Reading environment variables](https://forum.legato.io/t/reading-environment-variables/6743)
**Author:** [@gi1](https://forum.legato.io/u/gi1)\ **Replies:** 2\ **Last updated:** [May 22, 2024, 4:51pm UTC](https://forum.legato.io/t/reading-environment-variables/6743 "2024-05-22T16:51:51Z")
Hello, how can i read the envVars values form my adef file? I’m putting firmware version in it and i need to read while running. Regards, Gianmaria --- ## [UDP records not transmitted when debugging](https://forum.legato.io/t/udp-records-not-transmitted-when-debugging/6741)
**Author:** [@dave-k](https://forum.legato.io/u/dave-k)\ **Replies:** 6\ **Last updated:** [May 22, 2024, 12:51am UTC](https://forum.legato.io/t/udp-records-not-transmitted-when-debugging/6741 "2024-05-22T00:51:21Z")
We’re trying to debug a data corruption issue and find that when using the debugger in VS Code to debug our C code, records which are normally transmitted without issue don’t get sent. I’m guessing it’s a firewall or ipt… --- ## [WP76 vscode legato not working](https://forum.legato.io/t/wp76-vscode-legato-not-working/6724)
**Author:** [@essantos](https://forum.legato.io/u/essantos)\ **Replies:** 7\ **Last updated:** [March 26, 2024, 12:18pm UTC](https://forum.legato.io/t/wp76-vscode-legato-not-working/6724 "2024-03-26T12:18:25Z")
Im trying to use vscode framework and im not able to do it. After I install the packages for wp76 and vscode, this error appers in output Legato Languange Server. In profile, using: swi-vscode-support\_200624 and swi\_wp7… --- ## [Issue creating CWE and SPK files in WP7702 release 15 firmware](https://forum.legato.io/t/issue-creating-cwe-and-spk-files-in-wp7702-release-15-firmware/6723)
**Author:** [@shommersom](https://forum.legato.io/u/shommersom)\ **Replies:** 2\ **Last updated:** [March 21, 2024, 12:18pm UTC](https://forum.legato.io/t/issue-creating-cwe-and-spk-files-in-wp7702-release-15-firmware/6723 "2024-03-21T12:18:34Z")
We’ve been having a lot of issues getting the release 15 software to build for the WP7702, however with the download provided earlier and using a VM rather than WPF. We’re now at the final step to create the cwe & spk fi… --- ## [Connecting wp77 to AWS IoT](https://forum.legato.io/t/connecting-wp77-to-aws-iot/5344)
**Author:** [@ClaudioBaldo](https://forum.legato.io/u/ClaudioBaldo)\ **Replies:** 16\ **Last updated:** [March 15, 2024, 9:35pm UTC](https://forum.legato.io/t/connecting-wp77-to-aws-iot/5344 "2024-03-15T21:35:57Z")
I am trying to connect a wp77 to AWS IoT and I was wondering if there is any available app which support TLS authentication for mqtt protocol. Cheers --- ## [Can't put UART2 in mode 17 on mangOH (Legato 16.07, WP85)](https://forum.legato.io/t/cant-put-uart2-in-mode-17-on-mangoh-legato-16-07-wp85/2198)
**Author:** [@hlro1](https://forum.legato.io/u/hlro1)\ **Replies:** 4\ **Last updated:** [August 27, 2021, 12:37pm UTC](https://forum.legato.io/t/cant-put-uart2-in-mode-17-on-mangoh-legato-16-07-wp85/2198 "2021-08-27T12:37:48Z")
Hi there, I am rather new to using Legato and the WP85xx modem, though I am a fairly reasonable user of Embedded Linux. I SSH into Legato and tried changing UART2 for type 17 (Custom Linux application), but it does not… --- ## [Unknown Package wp77-legato\_21.05.0-202110290357](https://forum.legato.io/t/unknown-package-wp77-legato-21-05-0-202110290357/6697)
**Author:** [@shommersom](https://forum.legato.io/u/shommersom)\ **Replies:** 26\ **Last updated:** [March 9, 2024, 11:41am UTC](https://forum.legato.io/t/unknown-package-wp77-legato-21-05-0-202110290357/6697 "2024-03-09T11:41:33Z")
I’ve been having some issues trying to switch to the swi-wp77\_6.0.1 leaf profile so I’ve done a clean install of everything. I’m using WSL on windows with Ubuntu 18.04, i’ve run the following commands from a clean insta… [Previous page](https://forum.legato.io/c/uncategorized/1.md) [Next page](https://forum.legato.io/c/uncategorized/1.md?page=2)