RTC update lag

[Vahid Ajallooeian]

Hello dear friends,

The problem I have encountered is that updating the digital clock takes too much time. So I can see that some time updating takes up to 3 seconds, it is wonderful that other widgets don't stop and do their work.

I didn't understand what is really the source of the problem.

I use HAL for reading RTC, using the digital clock widget.

Touchgfx version: 4.15 (Didn't dare to upgrade to 4.16)

RTOS: Not yet used. (Planed for next times)

UC: STM32f429IGT6

USB: CDC Enabled

Compiler: Keil V5.32

Any help would be appreciated.

[HP]

I just did a quick test with the digital clock widget. No problems updating as fast as I want.

Do you remember to call the 'invalidate' method right after you update the time? that could be a reason you don't see changes.

I tried this

1. create the handleTickEvent method and a variable 'seconds' in the .hpp file for the view.
2. In my view (MainView.cpp) I added the following code to be executed with each tick

void MainView::handleTickEvent()
{
	digitalClock1.setTime24Hour(12, 12, seconds);
	digitalClock1.invalidate();
	seconds++;
	if(seconds>59)
		seconds=0;
}

This works just as expeced with the seconds running really fast upwards.

A not though - this was on the simulator but I think the performance would be similar to what you can expect on HW.

[Vahid Ajallooeian]

Simulator USE X64 architecture, not ARM M4 architecture

[MM..1]

Try show your fail working code instead of architecture advice...