BRT Community

Hello Jerome,

Thank you for your question.

On the following:

Quote from: jipihorn on October 08, 2026, 01:34:05 PMHowever, whatever value I put here, I still get other interrupts like INT_SWAP or INT_CMDEMPTY.

Can I ask if you are seeing the INT_N pin assert for INT_SWAP or INT_CMDEMPTY, or are you simply reading the REG_INT_FLAGS register and seeing these flags are also set when for example a INT_TOUCH interrupt is triggered?

The REG_INT_FLAGS register keeps track of the available interrupt sources on the IC, and will set the flag accordingly for each source irrespective of the flags being masked by REG_INT_MASK. When REG_INT_EN is 1, INT_N is driven low when any of the interrupt flags in REG_INT_FLAGS are high, after masking with REG_INT_MASK. Basically the flag will set for a given interrupt source when the given scenario for that flag happens, the mask is then used to tell the INT_N pin which flags it should assert for.

Best Regards,
BRT Community

Bridgetek's IC Development Kits (IDKs) provide a quick and easy way to evaluate EVE graphics controllers, combining graphics, touch, and audio capabilities in a ready-to-use package. Each kit includes a development board, matching LCD display, and connectivity options to help engineers rapidly prototype, test, and develop GUIs.

Simply connect to a PC via USB-SPI/QSPI to start building your user interface using Bridgetek's software tools. When ready, connect your MCU to continue development and seamlessly integrate the GUI into your final product. 🚀

Hello,

I use the BT817 a lot, without touch screen but this time, it is different.
So I have to use interrupts when touch stuff happen.

I put a mask on the REG_INT_MASK register with 0x86 and enable them with REG_INT_EN  set to 1.
However, whatever value I put here, I still get other interrupts like INT_SWAP or INT_CMDEMPTY.

If I read back the mask register, I read the right value, so it is not resetted by something else...

Is there something else to do to filter interrupts ?

Jerome.

Hello,

Thank you for the update!

We are glad to hear that EAB 4.5.0 is working well for you now.

Best Regards,
BRT Community

Totally forgot about this one, untill the project I was struggling with back in march landed back on my desk today with one of tasks beeing to increase the font size.

I just converted the font in EAB 4.5.0 for BT817 again, using the same size as a first stept but ASTC 8x8.
It looks fine now and the size of the binary is much smaller.

    

I just remembered this issue while playing with the VM820B10A.

The issue with the RVT101HVBNWC00-B is still there.

The VM820B10A however does not have this issue, I just tried all values from 0 to 7 and the output is fine regardless of the orientation.

Yeah, the VM820B10A arrived today, about a week earlier as expected. 
Unfortunately, my PCBs for it have not arrived, maybe tomorrow.

The first thing I noticed, the cover glas of the VM820B10A is significantly smaller than the one on the RVT101H - yes, I did not bother to check the measurements. 
I guess I need to ask for a re-design of the case instead of modifying it myself then.

Edit: the MCU boards arrived yesterday, I had to assemble a couple of missing parts, did some basic tests and combined the PCB withthe VM820B10A today.

Came out pretty much as planned. 

You cannot view this attachment.

The extra cables?
Debugger and Logic Analyzer.

I have a CAN-FD XCP bootloader for the ATSAME51, but I have not populated the CAN transceiver and the common mode choke, I rather use the microscope in my lab at work for that.   

Great Job Rudolph, thanks for sharing your project.




best regards

BRT Community Admin

Ah, why not, have a few more images.
Today I finally got around to complete another RVT101 based "tablett" (so BT817) at work.

You cannot view this attachment.
You cannot view this attachment.
You cannot view this attachment.

Unfortunately, the shot from the side was not showing anything usefull.
And I would like to show you what the mcu does, but I really can not.

Again, I specifically designed this PCB for the RVT101, it has two switching regulators, one for the backlight, one for the logic including the mcu.

Hello,

and yes, the plan is to add my MCU board to the back.
Usually I would use a FFC connector, but I opted to connect to CN17.
And I might remove CN1 and CN3 as these are very tall.
My design for the BT817 10" uses a case that is almost 20mm thick.
And with the VM820B101A it might be required to go beyond that without
removing components - and 20mm already is a fat "tablet".

You cannot view this attachment.