Screen update issues with Forerunner 735XT

Hi guys,

recently I get feedback from users that my stopwatch app is not working properly on the mentioned device. When it starts the time does not update correctly. What I am doing is to call the

Ui.requestUpdate

every 50ms (lowest time possible). Might this cause issues? In simulator this is not reproducible and also other devices seem to work correctly.

Anybody else facing this issue?

Thanks!

Bye

tmk2 over 9 years ago

I am experiencing similar issues with your stopwatch widget on my FR735XT. The issue started with firmware 8.20 or 8.30 (not sure now) as previously it worked just fine.

The issue is:
After starting the stopwatch the running time does not update (stays at 00:00). The timer is running invisibly, because when the lap button is pressed the lap value appears correctly (the main timer stays blank).

Talkabout over 9 years ago

Is this an issue with my stopwatch only or also with other stopwatches?

As I do not have that device I am unable to test it myself. But I do not remember to have change anything in that manner in the widget.. Could you please check if the same issue is there with the StopWatch App?

Thanks!

Bye

tmk2 over 9 years ago

Is this an issue with my stopwatch only or also with other stopwatches?

The only other stopwatch app that I have installed on my watch is the garmin stopwatch app (https://apps.garmin.com/en-US/apps/fc9c1ad4-9377-45f9-b53d-ed61f480c3ff). It works just fine.

But I do not remember to have change anything in that manner in the widget..

I am quite convinced that the change came with a recent firmware update, possibly with new Connect IQ SDK support (firmware 8.20 brought SDK 2.3.1 support)

Could you please check if the same issue is there with the StopWatch App?

Currently I'm running a little low on memory and cannot install any additional apps, but I'll try to check it out in a couple of days.

Talkabout over 9 years ago

Thank you!

By the way, other devices (like Fenix 5) also run SDK 2.3.1 and there is no issue. Maybe it is the combination of this SDK with that device.

Maybe a Garmin developer could comment on that?

Bye

Former Member over 9 years ago

I'll be checking into this.

Thanks,
-Coleman

Talkabout over 9 years ago

Thanks, much appreciated!

tmk2 over 9 years ago

Maybe it is the combination of this SDK with that device.

That would be my conclusion as well.

sis651 over 9 years ago

I don't know your app but 50ms can be shorter time limit then a watch can do depending on the objects rendered on the screen. Actually FR735XT is a faster device but I've some apps that render in more than 100ms in Fenix3 with lots of image files etc.. So it may be starting to update without finishing the previous update?

Talkabout over 9 years ago

I was already thinking about that, but I am rendering only a few strings and lines on the watch, which shouldn't take much time. Also the question is why it worked before a firmware update...

Talkabout over 9 years ago

I'll be checking into this.

Thanks,
-Coleman

Any news on this? I need to know if I need to change something in my app and therefore dig deeper into it or if it is related to a firmware issue.

Thanks!

Bye