EVE2-38A display update issue

FTDI/Bridgetek EVE2 & EVE3 & EVE4 SPI TFT Series by Matrix Orbital

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blu_admin
LCD?
Posts: 4
Joined: Mon Jun 03, 2024 1:03 am

EVE2-38A display update issue

Post 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.

Raquel
Matrix Orbital
Matrix Orbital
Posts: 834
Joined: Thu Aug 19, 2004 3:37 pm
Location: MO Office

Re: EVE2-38A display update issue

Post 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,
Raquel Malinis
Design and Development
Matrix Orbital

blu_admin
LCD?
Posts: 4
Joined: Mon Jun 03, 2024 1:03 am

Re: EVE2-38A display update issue

Post 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.

Raquel
Matrix Orbital
Matrix Orbital
Posts: 834
Joined: Thu Aug 19, 2004 3:37 pm
Location: MO Office

Re: EVE2-38A display update issue

Post by Raquel »

Hello,

Perhaps you can share your code here so we can take a look.
Raquel Malinis
Design and Development
Matrix Orbital

blu_admin
LCD?
Posts: 4
Joined: Mon Jun 03, 2024 1:03 am

Re: EVE2-38A display update issue

Post 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.

Raquel
Matrix Orbital
Matrix Orbital
Posts: 834
Joined: Thu Aug 19, 2004 3:37 pm
Location: MO Office

Re: EVE2-38A display update issue

Post by Raquel »

Thanks, we got the email.
We will look into it.
Raquel Malinis
Design and Development
Matrix Orbital

blu_admin
LCD?
Posts: 4
Joined: Mon Jun 03, 2024 1:03 am

Re: EVE2-38A display update issue

Post 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!

Raquel
Matrix Orbital
Matrix Orbital
Posts: 834
Joined: Thu Aug 19, 2004 3:37 pm
Location: MO Office

Re: EVE2-38A display update issue

Post 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.
Raquel Malinis
Design and Development
Matrix Orbital

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