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EVE2-38A display update issue

Posted: Mon Jun 03, 2024 1:14 am
by blu_admin
Hi there, I'm having trouble using EVE2-38A. When updating from an existing screen to a new one, the update doesn't happen intermittently. This is a really bad situation. Do you know how to fix this?
What's absurd is that when you put the same code in eve2-35a, it works completely well.

Re: EVE2-38A display update issue

Posted: Mon Jun 03, 2024 8:04 am
by Raquel
Hello,

Thank you for posting on the forum.
The EVE2-38A and EVE2-35A do not share the same timing information; this is why the same code will not work on both displays.
If you please check out our demo code here.

Thank you,

Re: EVE2-38A display update issue

Posted: Mon Jun 03, 2024 6:10 pm
by blu_admin
I know the timing information of EVE2-38A and EVE2-35A is different. My question was not there. It was about why the screen switch wasn't working properly in EVE2-38A.

case DISPLAY_38:
DWIDTH = 480;
DHEIGHT = 116;
PIXVOFFSET = 10;
PIXHOFFSET = 0;
HSIZE = 480;
VSIZE = 272;
HCYCLE = 524;
HOFFSET = 43;
HSYNC0 = 0;
HSYNC1 = 41;
VCYCLE = 288;
VOFFSET = 12;
VSYNC0 = 156;
VSYNC1 = 10;
PCLK = 5;
SWIZZLE = 0;
PCLK_POL = 1;
CSPREAD = 1;
DITHER = 1;
break;

I'm using timing information like this.

Re: EVE2-38A display update issue

Posted: Tue Jun 04, 2024 9:42 am
by Raquel
Hello,

Perhaps you can share your code here so we can take a look.

Re: EVE2-38A display update issue

Posted: Wed Jun 05, 2024 2:32 am
by blu_admin
Hello,

I sent the code and video to this email address on support@matrixorbital.ca . I would appreciate it if you could check it.

If I get your help and solve it, I'll post the solution here myself so that others can refer to it.

Re: EVE2-38A display update issue

Posted: Wed Jun 05, 2024 12:56 pm
by Raquel
Thanks, we got the email.
We will look into it.

Re: EVE2-38A display update issue

Posted: Thu Jun 06, 2024 10:43 pm
by blu_admin
I received your response well and thank you very much.
I sent you another e-mail and I would appreciate it if you could help me with this as well.

And the next step you mentioned, SPI communication speed adjustment, I've already done it. I tried to slow it down from the default of 10.625Mbit/s to 2.65625Mbit/s, to no avail.

Have a good day!

Re: EVE2-38A display update issue

Posted: Fri Jun 07, 2024 9:59 am
by Raquel
Hello,

Yes I have received the email.
Let us please keep the correspondence via email for now and update here when we have a resolution.