[STM32GENERIC] F746 Discovery

Discussions about the STM32generic core
zmemw16
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Re: [STM32GENERIC] F746 Discovery

Post by zmemw16 » Mon Jun 12, 2017 3:52 pm

255/3 & 2*255/3 split it into thirds?
127 for b&w ? :)
srp

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Mon Jun 12, 2017 4:18 pm

>255/3 & 2*255/3 split it into thirds?
Yes, i think so.

>127 for b&w ? :)
The colorWheel colors are on the radius. There is no black and white
( If I understand your question correct ? )

danieleff
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Re: [STM32GENERIC] F746 Discovery

Post by danieleff » Mon Jun 12, 2017 4:29 pm

ChrisMicro wrote:Hi Daniel,

I have sometimes a strange behaviour of the STM32F746 Discovery:
Sometimes the board seems not to start. Even when pressing reset, the display remains white.
I did not have this behaviour with the Mandelbrot example but with both examples in my repository here.
I went to a friend which has the same board and we had the same behaviour there.
We tried to supply the board with a USB-Hub which has a separated power supply to exclude the possibility that it is coming from a to weak power supply. But the same behaviour there: sometimes it starts and sometimes not.
Can you confirm it on your board?
I confirm. When the upload method is Mass Storage, it does not start after uploading. (If the flash size is a little bigger, like your programs)
Changing to Upload Method: STLink works. If you can confirm, I will just set the default to STLink

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Mon Jun 12, 2017 5:22 pm

I confirm. When the upload method is Mass Storage, it does not start after uploading. (If the flash size is a little bigger, like your programs)
Thanks for trying.
Changing to Upload Method: STLink works. If you can confirm, I will just set the default to STLink
It is somehow difficult. Yesterday I worked the whole day without a problem.
This morning It didn't work with the same software.
Now I can't reproduce the error even with many times unplugging/plugging the device.
I have to wait until the problem occurs again ...
Probably anyone of the other users ( Pito? ) can confirm it also.

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Tue Jun 13, 2017 5:12 am

@Daniel

I just added with little modifications the touch example you posted here.
But it seems as if this driver is not working so sensitive and reliable as the other one. I have to touch several time until it is recognised.

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Tue Jun 13, 2017 7:55 pm

I'm looking for a library for GUI.

As a first test I adapted UGUI. But I think this library is much too complicated and very old fashioned.

Does anybody know a better library?

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Tue Jun 13, 2017 9:02 pm

Because Daniel included the SdFat now and it is working with the STM32F746 Discovery I just added an example for the tft.

The strange thing: If there is no SD-card plugged in, sd.begin() seems to hang up.

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Sun Jun 18, 2017 10:02 pm

Flappy on the STM32F747 Discovery is there :-)

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Wed Jun 21, 2017 11:49 am

Because there are so many examples with a ILI9341 touch display I made a wrapper for the touch functions.
With this wrapper it is easy to use the STM32F746 capacitive touch display with the ILI examples.

Here is the preliminary wrapper example.

Please give me a response how we could/ should integrate this into the framework.

ChrisMicro
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Re: [STM32GENERIC] F746 Discovery

Post by ChrisMicro » Sun Jul 02, 2017 9:44 am

I just discovered a cheap FM-radio IC:

Image

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