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[moiatto]

I have the same issues with this Riverdi 7" IPS BT817 module.

The flash section is very poor. No way to detect the EVE4 with EAB v2.4.1 at any spi clock rate. Only with EAB v2.1.0 I can flash it with reading speed: 4,57MB/s.

Instead with VM816 BT816 board I can flash also without problems with EAB v2.4.1. I f a set spi clock clock rate at 16MHz I can detect and read at 9,81MHz. Any big image 800x480 ATSC_4x4 is displayed perfectly and big size animation too.

But with this Riverdi module I'm having only problems.

[fr3ud]

Hi there, same problem here
I'm having troubles sending images to the flash of the Riverdi 7" BT817Q, in get this error while trying to detect flash with EAB 2.4.1 :

Detecting flash...
Flash size: 0 MB

Blob is NOT present.

Flash can switch to full speed.
END

BEGIN
Calculate reading speed...

Reading speed: 10.00 MB/s
Reading 10 MB in 1.00 seconds
END

I'm using a FT232h USB to SPI (CJMCU-232H)
In EAB > Flash utilities :
EVE Chip = BT817/8 
Programmer Module MPSSE
SPI Clock Rate 12Mhz

I will try like suggested by moiatto to use EAB 2.1.0

[moiatto]

After all tests, I arrived at the conclusion that these BT817/8 series are mutilated and born without the fundamental thing:
greater size of RAM_G.

I like that they are an upgrade version of BT815/6, but the designers know that if increase the supported resolutions (for example 1024x600 on TFT 7") and know the limit baud rate of the external qspi flash memory, at least you have to increase the size of the RAM_G which starts to get ridiculous and severely limits the use of these new chips with images and animations bigger and bigger.

In my case, for example, a bigger animation (ATSC 4x4, 770x340, size 2,7k) that works perfectly on BT815/6 at 800x480, the same animation on BT817/8 at 1024x600 it's impossible to show in no way. I have tried all. Only in a poor ATSC 8x8 with "adaptive frame rate" and "adaptive HSync" enabled, I can see a bad copy on the screen, without other assets that I have not considered and that work perfectly on BT815/6.

Sorry but for me it failed.

[Rudolph]

I just connect my RVT70HSBNWC00-B with the Riverdi Hermes board.

And EAB 2.4.1 at first detects the display just fine, see the attached image.
Then EAB crashes and just closes without error message.
And it takes down the interface as well, I have to remove it from USB.

I also replaced the original 15cm FFC with a 5cm one, no difference.

EAB 2.4.0 does the same.

Very odd is that the Hermes board does not use a FT4222 but a FT232HQ so the correct setting would be MPSSE.
But with MPSSE it does not work at all.

EAB 2.2.0 - almost the same result, detect works with FT4222 selected, then it hangs for a couple of seconds but it recovers with "Detect Fail!"

EAB 2.1.0 - works with MPSSE, fails with FT4222

EAB 2.1.0 comes with a ProgFlash.exe that has 43520 bytes:
C:\Users\Public\Documents\EVE Asset Builder>progflash
Welcome to BT81X Flash Programming Utility v1.1

EAB 2.2.0 comes with a ProgFlash.exe that has 154624 bytes:
C:\Users\Public\Documents\EVE Asset Builder>progflash
Welcome to BT81X Flash Programming Utility v1.1

Yes, the output is exactly the same.

The newer version also fails on the command-line.

EAB 2.4.0 comes with a ProgFlash.exe that has 155136 bytes:
C:\Users\Public\Documents\EVE Asset Builder>progflash
Welcome to BT81X Flash Programming Utility v1.2

And now it works as it should - what??

EAB 2.4.1 also comes with a ProgFlash.exe that has 155136 bytes:
C:\Users\Public\Documents\EVE Asset Builder>progflash
Welcome to BT81X Flash Programming Utility v1.2

And it works now fine as well, FT4222 mode does not work.
And now it stopped working again, testing from the command line.

Remove from USB, wait a few seconds, EAB progflash.exe from 2.1.0 works again, progflash.exe from 2.2.0 works, progflash.exe from 2.4.0 works, progflash.exe from 2.4.1 works.
I using them like this: progflash_2_4_1 module MPSSE detect except_writing

Ok, I updated to USB driver CDM212364, sorry, forgot to check what I had installed.

EAB 2.4.0 with MPSSE setting does crash again.
Progflash.exe from 2.4.1 on command line fails.
USB disconnect / re-connect
Progflash.exe from 2.1.0 on command line works.
Progflash.exe from 2.4.1 on command line fails.
USB disconnect / re-connect
Progflash.exe from 2.4.0 on command line fails.
USB disconnect / re-connect
Progflash.exe from 2.2.0 on command line fails.
USB disconnect / re-connect
Progflash.exe from 2.1.0 on command line works.

switching to an EVE3-50G from Matrix Orbital
Progflash.exe from 2.4.1 on command line fails.
USB disconnect / re-connect
Progflash.exe from 2.1.0 on command line works.
Progflash.exe from 2.2.0 on command line works.
Progflash.exe from 2.4.0 on command line works.
Progflash.exe from 2.4.1 on command line works.

Whatever this is, progflash.exe does not currently work stable and this is not limited to the RVT70HSBNWC00-B.

[fr3ud]

Would you mind sharing a copy of EAB 2.1.0? Or is there a repo with the olders versions that I didn't find?
Thanks!

[Rudolph]

I can't attach it here since it has 82MB and I do not know if this is ok with BRT.
And it would be nice to see this fixed.

[BRT Community]

Hello,

EAB 2.1,0 RC2 can still be downloaded from the following:
https://brtchip.com/wp-content/uploads/Utilities/EVE-Asset-Builder-setup-2.1.0-rc2.zip

Best Regards,
BRT Community