About Xzhiy.1

Xzhiy.1 · 2023-03-20

I bought a STM32H747i-DISCO board to learning USB HOST to drive a camera, I found the usb host is very unstable, every is fine except suddenly dropout which meanings the port disabled, I debug and struggle for months with no nothing solved. the USB...

Xzhiy.1 · 2022-07-15

I read some demo code, the result is YES. am I right?

Xzhiy.1 · 2022-07-11

Xzhiy.1 · 2023-03-21

thank AScha.3, Yes, your hint is quite helpfull for me, I have observed that power ripple make usb dropout by oscilloscope in single trigger mode, when the ripple suddenly rise up to trigger a snapshot, the usb connection dropout immediately, this is...

Xzhiy.1 · 2023-03-20

thank Ascha.3 for your precious experience, I remember I use a DC linear power supply to power DISCO, and change the DC output to standard 5V(usb port of PC normally about 4.7V)， jumps also changed to select power source, Its hard to say things chan...

Xzhiy.1 · 2022-07-18

Thank you, Yoann KLEIN,That is very good design for me to write code easy, only focus on callbak of drawables, NO need to find out which is pressed by myself, your answer make me clear about that.

Xzhiy.1 · 2022-07-13

Hi, Natali.TouchGFX 17.0 definitely has Demos and Examples, my another PC with Win7 has installed this version and everything is fine. But on this computer, it is gone. I guess lack some base software service. By the way, you said examples can downlo...

Xzhiy.1 · 2022-07-12

with OS run under preemt topology, high pri CPU_BURNER task have more oppotunity to run than ToughGFX engine, sometimes will preemt ToughGFX to left it to wait, if you use osDelay() to suspend scheduler, making TouchGFX starved, even if TE signal ar...

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Why STM32H747i USB host so unstable with reg OTG_HS_HPRT change from 0x1005 to 0x1401 ?

Is ListLayout in ScrollableContainer has ability to identify one of drawables added before, means to find out which drawable was clicked and transfer click event to that drawalbe ?

Where is examples and demos? first time I install TouchGFX Designer 17.0, there is examples and demos in left panel, where I learned a lot, but it's actually empty in TouchGFX 19.0,2.0, even I download 17.0 again, is gone? am I missed something?

Re: Why STM32H747i USB host so unstable with reg OTG_HS_HPRT change from 0x1005 to 0x1401 ?

Re: Why STM32H747i USB host so unstable with reg OTG_HS_HPRT change from 0x1005 to 0x1401 ?

Re: Is ListLayout in ScrollableContainer has ability to identify one of drawables added before, means to find out which drawable was clicked and transfer click event to that drawalbe ?

Re: Where is examples and demos? first time I install TouchGFX Designer 17.0, there is examples and demos in left panel, where I learned a lot, but it's actually empty in TouchGFX 19.0,2.0, even I download 17.0 again, is gone? am I missed something?

Re: Problem with TouchGFX on STM32H747-DISCO: freezing while an other task runing with higher priority.