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 1 
 on: October 04, 2024, 10:58:56 PM 
Started by jipihorn - Last post by TFTLCDCyg
GDSTx library in teensy 4.1 (teensyduino 1.60-beta2) and NHD 5" FT813, Arduino IDE 1.8.19. Loaded from the SDIO reader using SdFat V2.2.3. The memory used is a 256Gb Canvas Go Plus microSD, formatted in exFat. The two png files appear normal


 2 
 on: October 04, 2024, 05:05:02 PM 
Started by jctibor - Last post by BRT Community
Hello,

Thank you for your question.

The BT81x series co-processor engine can encounter faults, and fault conditions can be read back from an area in RAM, please see section 5.7 of the BRT_AN_033 BT81X Series Programming Guide. A fault recovery procedure can also be found within this section of the programmers guide.

In the first instance I would verify if a co-processor fault has occurred, after this you can also verify that the REG_FRAMES register is still incrementing as this indicates how many frames have been rendered to out to the LCD, which will give you and indication if EVE is still outputting to the screen, if this is not the case you could perform a reset on the IC.


Best Regards,
BRT Community

 3 
 on: October 04, 2024, 02:44:57 PM 
Started by jctibor - Last post by jctibor
Hello brt comminity,

i am working on project which is some kind of medical plasma high voltage generator. The spark produces a lot of EMI noise and diplay sometimes stucks. I need to investigate where is the problem and do proper EMC and SW hooks to solve it. My vision is to read some error or status registers and based on it do a proper action. Is there something like that? I am looking into datasheets and prog. guides but i cant find anythink like that. Can somebody suggest me something?

Best regards.

 4 
 on: October 04, 2024, 02:14:25 PM 
Started by jipihorn - Last post by jipihorn
Hello,

Thanks a lot to take some time to test on an other platform.

I should have some side effect with this very file, but I don't see what's the problem yet. The co-processor send a 0xFFF result from the write command register when checking for some room after the first block transfer.
By the way, for working images,  the GetProps command returns the memory address where a PNG bitmap is expanded, but the end of the buffer, not the beginning. Is it normal ? it is not what i understand when reading the BT81X programming manual. The width and heigh are right, but I didn't expect to get this memory value. I was expecting the same value than the one given to the LOADIMAGE_CMD command.

Continue investigations...

Jerome.

 5 
 on: October 04, 2024, 09:17:06 AM 
Started by mado_rody - Last post by Thaj
Hello,

I’ve attached the example project and screenshot for your reference. Please review the project for better clarity.

Please review the Page1 and Page2 under Switch Page (as shown in the screenshot).

Please let us know if you have any questions on this.

 6 
 on: October 04, 2024, 07:01:51 AM 
Started by jipihorn - Last post by pauljiao
I tested both 1 and 2 png files on ESE 4.10 and FT813 based platform. They are working well.

See the picture enclosed.

 7 
 on: October 02, 2024, 02:37:03 PM 
Started by jipihorn - Last post by jipihorn
Hello,

I'm using this command to decode PNG bitmap from a MCU (PIC32) into a BT812.
I had some of them that failed the decoding.
With a PNG editor, I saw, for example, that embedded ICC profiles are refused by the BT812, which is fair. As soon as I removed this chunk, the bitmap was decoded normally.
All my bitmaps are ARGB8 ones and expected to be decoded as ARGB4. And, of course, all the transfers are always 4 bytes aligned.

Now, i have a small PNG image, with nothing special that is not decoded by the BT812 and I don't know why. I tried to read/write with some drawing utilities, but it's still failing.
Here I join two bitmaps. The "One.png" fails but the other one "Two.png" is read correctly. they have the same size and same internal structure.
What are the exact requirements for PNG decoding and what is wrong with this one ?

Thanks in advance,

J.Prévost


 8 
 on: October 02, 2024, 04:30:18 AM 
Started by BRT Marketing - Last post by BRT Marketing
🎥 #VideoInput! 🎥
Unveiling the BT822 Graphics Controller IC with Dual Channel LVDS RX Interface for video input up to 1920 x 1200 pixels.
Capture every detail with precision and process your stream in real-time.
Join us at Embedded World North America 2024!
📍 Visit us at Booth 2040 to find out more about our NEW 5th Gen #EmbeddedVideoEngine #EVE and it’s other families.
Read more about BT822 here: https://bit.ly/Discover-the-BT822-5th-Generation-EVE
#Bridgetek #BT822 #LVDS #EWNA2024

 9 
 on: October 02, 2024, 04:29:34 AM 
Started by BRT Marketing - Last post by BRT Marketing
📺 Crystal Clear Displays! 📺
Say Hello to our brand-new BT822 Graphics Controller IC with Dual Channel LVDS TX Interface. Perfect for amazing HMI, achieve high-res LCDs up to 1920 x 1200 pixels with ease.
📍 Visit us at Booth 2040 to find out more about our NEW 5th Gen #EmbeddedVideoEngine #EVE and it’s other families.
Read more about BT822 here: https://bit.ly/Discover-the-BT822-5th-Generation-EVE
#Bridgetek #EmbeddedVideoEngines #EVE #BT822 #LVDS #HighResolution #EWNA2024

 10 
 on: October 02, 2024, 04:26:22 AM 
Started by BRT Marketing - Last post by BRT Marketing
💡 Innovation at its Best! 💡
The BT822 Graphics Controller IC features an Embedded 1Gbit DDR3L SDRAM.
Enjoy seamless performance and compact design for your next project. Don’t miss out!
📍 Visit us at Booth 2040 to find out more about our NEW 5th Gen #EmbeddedVideoEngine #EVE and it’s other families.
Read more about BT822 here: https://bit.ly/Discover-the-BT822-5th-Generation-EVE
#Bridgetek #EmbeddedVideoEngines #EVE #BT822 #SiP #DDR3L #EWNA2024

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