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Messages - BRT Community

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241
Discussion - EVE / Re: Want to use ESD 4.14.0 with BT817Q and 512MB Flash (Riverdi 7" Display)
« on: January 11, 2022, 12:12:05 PM »
Hello,


Quote from: J369 on January 04, 2022, 03:48:49 PM
Hello,

I am now more leaning towards changing my controller to stm32 as that will support EVE Screen Designer.
Can you please help me suggesting the latest controller that I should select to match with my display and with EVE Screen Designer project that can include animations, UART comm. with main controller and may be update firmware over uart if required. Can you please suggest one?


Sorry, just to clarify are you looking for a recommendation on which STM32 controller you should utilze?

Please also note when utilizing the STM32 with ESD you will still be required to manually port the code output from ESD to the STM32, you cannot directly upload the code produced from ESD to the controller.

Best Regards,
BRT Community

242
General Discussion / Re: How to read REG_ID register
« on: January 10, 2022, 11:10:01 AM »
Hello,

Could you post an example of a short display list that you have created which shows the issue?

Best Regards, BRT Community


243
Discussion - EVE / Re: Multi tag problem
« on: January 05, 2022, 06:20:37 PM »
Hi,

We tried with an ME817EV with RiTFT-70H-CAP (I believe it has FT5426) and the touches/tags remained in the correct positions so long as the touch was held (e.g. on the second and third fingers when repeating your test).

It is difficult to be sure what is happening in your trial with other CTP but it may be, for example, that a pen-up is reported for some or all other points and so EVE is seeing a momentary release of all fingers and so even the ones which are held on the screen are seen to change.

I'll see if we have any others but is it possible for you to capture the respective waveform on the I2C and interrupt lines and we can see what may be happening?

Best Regards, BRT Community




244
Discussion - EVE / Re: Standby mode
« on: December 23, 2021, 10:06:08 AM »
Hello,

This will depend on the LCD itself and whether it can keep the last image when receiving no new data. The behavior seen may vary between different types/makes of LCD panel.

One consideration in any case would be whether the standby mode is necessary? The power used by EVE would probably be a lot less than the power taken by the LCD and backlight and so reducing the EVE consumption may not be a big overall saving if you will be keeping these on. Putting EVE to a low power state and the LCD/backlight would offer a bigger saving.

If you keep EVE and the LCD in active state, EVE will hold the last display list and so if your main aim is to hold the image without needing to communicate with the display part of the system then keeping EVE and the LCD active would achieve this.

Best Regards, BRT Community


245
Discussion - EVE / Re: Multi tag problem
« on: December 22, 2021, 11:40:46 AM »
Hi,

We will also try your experiment on our module (ME817EV with Focaltech-based screen) and will let you know the result,

Best Regards, BRT Community

246
Discussion - EVE / Re: I am using W25Q64, but why EVE Asset Builder shows only 8MB ?
« on: December 21, 2021, 04:17:52 PM »
Hello,

Yes Rudolph is correct EAB lists the flash size in mega-bytes whilst flash siszes are denoted in mega-bits.

For example the W25Q128JVSIQ included on the VM816C modules produces the following output in EAB (see attached).

Best Regards,
BRT Community

247
Discussion - EVE / Re: Unwanted stripes on the EVE4 1024x600 picture
« on: December 20, 2021, 03:07:12 PM »
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


248
Discussion - EVE / Re: Standby mode
« on: December 20, 2021, 01:41:28 PM »
Hello,

Yes when the graphics core is placed into STANDBY it will not be driving the display pins on the IC, thus it appears as if the display has turned off. Unfortunately if your require the last screen to be persistent on the LCD panel the only way to guarantee this is by keeping EVE in the ACTIVE state.

Best Regards,
BRT Community

249
Discussion - EVE / Re: Standby mode
« on: December 20, 2021, 11:55:46 AM »
Hello,

Thank you for your question, when the device is placed into standby mode the system clock applied to the graphics core is disabled, however the previous screen may persist on the LCD panel. As such we would recommend issuing a blank screen to EVE before issuing any power state host commands to the IC.

Code: [Select]
    ramDisplayList = RAM_DL;                                                    // start of Display List
    EVE_MemWrite32(ramDisplayList, 0x02000000);                                 // Clear Color RGB sets the colour to clear screen to

    ramDisplayList += 4;                                                        // point to next location
    EVE_MemWrite32(ramDisplayList, (0x26000000 | 0x00000007));                  // Clear 00100110 -------- -------- -----CST  (C/S/T define which parameters to clear)

    ramDisplayList += 4;                                                        // point to next location
    EVE_MemWrite32(ramDisplayList, 0x00000000);                                 // DISPLAY command 00000000 00000000 00000000 00000000 (end of display list)

    EVE_MemWrite32(REG_DLSWAP, DLSWAP_FRAME);                                   // Swap display list to make the edited one active


Best Regards,
BRT Community

250
Discussion - EVE / Re: BT818 PCLK settings
« on: December 20, 2021, 11:35:22 AM »
Hello,

On our development boards we utilize the Abracon LLC - "ABM8G-12.000MHZ-18-D2Y-T" 12Mhz 18pF crystal.

Best Regards,
BRT Community

251
General Discussion / Re: How to read REG_ID register
« on: December 16, 2021, 02:37:40 PM »
Hi,

Which format is your ARGB1555 image in? Is it the raw data (e.g. the .raw or .rawh from EVE Asset Builder) or is it a bin file which you are inflating with CMD_INFLATE?

Best Regards, BRT Community

252
Discussion - EVE / Re: Want to use ESD 4.14.0 with BT817Q and 512MB Flash (Riverdi 7" Display)
« on: December 14, 2021, 11:11:02 AM »
Hello,

I will assume in this case that you have utilized the flash image provided in these example on your board.

After review of your code it appears that the VERTEX_FORMAT and COLOR_RGB commands are responsible for the on screen behavior you are seeing (see attached image).

I would suggest adding a COLOR_RGB (white) command to your code before you issue the FLASH_SOURCE and LOADIMAGE commands, i would also suggest utilizing VERTEX2II when placing the bitmaps on the screen for testing currently.


Best Regards,
BRT Community

253
Discussion - EVE / Re: Want to use ESD 4.14.0 with BT817Q and 512MB Flash (Riverdi 7" Display)
« on: December 13, 2021, 04:48:23 PM »
Hello,

Thank you for the update.

Could you just clarify which library you are using? is this ESD based code?

Also can you please let me know how you have generated the flash image in EAB for testing? or have you uploaded the flash image from EVE screen Editor to your board?

Please feel free to call our support line within UK office hours @: (+44)141 429 2777

Best Regards,
BRT Community

254
Test and Review Area / Re: BRT_AN_025 Beta - Portable MCU library for EVE
« on: December 10, 2021, 12:01:26 PM »
Hello Nar,

Thank you for your post.

Just as a note, if you email all three of the support emails address at the same time our spam filter is likely to block the email, in future please support.emea only for any EVE related questions.

Could you please let me know which MCU you are planning on utilizing for your project?
We have split the BRT_AN_025 project into separate folders so that it is easier to distribute to customers.

Quote from: nar on December 09, 2021, 07:25:15 PM
We are evaluating BT81x for a new project.   Where can we find this library & AN?   

The official links online found here https://brtchip.com/softwareexamples-eve/ return not found.   
Both AN and Source are dead end.  Also BRT_AN_062 links are not found.     We are looking for both BRT_AN_025 &  BRT_AN_062

We have emailed support.us, support.apac & support.emea for 10 days and no reply from any!!  (very assuring!  ???)

We know there is a 3rd-party library out there but per contract, evaluation needs to use original manufacturing toolchain fully before attempting to use external sources.

Thanks
NAR

Best Regards,
BRT Community

255
Discussion - EVE / Re: Want to use ESD 4.14.0 with BT817Q and 512MB Flash (Riverdi 7" Display)
« on: December 08, 2021, 12:09:14 PM »
Hello,

thank you for your code snippet.

Can you just confirm the format of the image you have stored in flash? Is this a EVE_COMPRESSED_RGBA_ASTC_8x8_KHR image or have you copied the native JPEG/PNG data into flash?

I ask this as the CMD_LOADIMAGE command is only applicable for PNG/JPEG data, and I believe this may be where the issue lies.  (just to note this approach is applicable, but you need to load the raw JPEG/PNG data into flash and not a conversion of the image data for this approach).

If you are using a EVE_COMPRESSED_RGBA_ASTC_8x8_KHR you would need to utilise the CMD_SETBITMAP command in a similar manner to the following:

Code: [Select]
CMD_SETBITMAP(0x800000 | 128, COMPRESSED_RGBA_ASTC_8x8_KHR, 110, 85)
BEGIN(BITMAPS)
VERTEX2II(0, 60, 0, 0)

Best Regards,
BRT Community

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