BRT Community

Hi Rudolph,

Sorry for the delayed reply, Our new Programmers guide will be ready soon,

You are correct, the LVDS output is for one display only. We use two channels to allow us to support the high resolution panels such as 1920 x 1200, but the two channels work together to provide the bandwidth required. Therefore, they are not designed to support two separate display panels on one BT820B IC.

Best Regards, BRT Community

Ok, this got lost in the forums update, so I am trying to re-post.

Quote
On the programmers guide point, this is currently going through the final review stages and we hope to have it released shortly.

Hmm, how do I put this in writing? Just remember that I am not in a bad mood over here.
I has been over three weeks now with me checking every day if there had been an update.

And I was promised answers to my questions but this thread practically went on as a blog with close to no answers.
In the meantime you use for example the undocumented host command E7 in your own code - which I had not seen when it was put in 5 months ago since I try to barely look at your code, following the mantra that if it is not documented, it does not exist.
This is a tad bit frustrating.

Well now, there still is an unfortunate lack of available ready-to-use EVE5 display modules, none to be precise and I wonder why that is.

Anyways, here is something for the FAQs, maybe:

Can I use the dual channel LVDS output of the BT820B with two single channel LVDS displays?

No, first of all the output in dual-channel mode is interleaved, so one channel is sending the even pixels, the other channel is sending the odd pixels.
Then there is only one clock setting and one set of REG_SO_ registers, so even if the scanout engine could be convinced to output non-interleaved, it could only output the same information in parallel to two LVDS channels, so the same image on two identicle displays.

Is this an accurate assesment?
There is more, but this is probably enough on the question of using two displays with the BT820B.

Pls use the latest BT81x programming guide v2.6.

https://brtchip.com/wp-content/uploads/2024/11/BRT_AN_033_BT81X-Series-Programming-Guide.pdf

The offset is 0x188.

Unfortunately I can not repost directly, I am not making backups of the posts here. :-)
And I checked the wayback machine, no backup there either.

Well, now we know.

Hello Rudolph,


OK, so working again, thank you.

Apologizes, but I`m unable to restore them. Are you able to repost?

Best regards

BRT Community Admin

Well, let's try. :-)

Do you have a chance to restore the couple of posts that got lost?

Hello Rudolph,


We are working through updating the version. Are you able to post OK now?

Thanks

BRT Community Admin

Hello, it has been a few days since there was a rollback on the forum and nothing new got posted since then.
What happened?

Hi,

Thanks for your question,

We'll check with our R&D team on this and will let you know as soon as possible,

Best Regards, BRT Community

Hi,

Is it possible to tweak some files to add a new platform and a new host to ESD software?
Because when I'm exporting sources, there are not my new platform dependent files.
I'm working on Renesas Synergy Platform.
I've edited EVE_config.h, target.config and export.config.

Or supported platforms are hardcoded in the ESD software?
thx.