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Messages - pauljiao

Pages: [1] 2 3 4
1
Discussion - EVE / Re: LVGL and FT813!
« on: February 07, 2024, 08:00:50 AM »
interesting project! 

May I know the hardware configuration and the feature list of lvgl is supported?

2
Discussion - EVE / Re: Disable AUDIO_L output signal
« on: March 27, 2023, 03:52:54 AM »
can try to play "mute" to get the AUDIO_L pin low:

write 0x60 (mute) to REG_SOUND.

It should make AUDIO_L pin low...

3
Discussion - EVE / Re: Question for method BLENDING
« on: March 27, 2023, 03:34:17 AM »
Thanks mmottola. Your tip works well.

4
You can open the App.main in the node editor and double click the output rectangle of update slot, which creates the update signal handler.   The handler is defined in app.c and  repeatedly called by framework.   Within the app.c, you can declare one global variable which can be used by any pages of the current ESD project. Therefore, the widgets can be connected with the defined global variable so that UI gets updated.   In the handler,  the global variable is updated/written by your monitoring thread.


5
Discussion - EVE / Re: implementing support for formated strings
« on: August 15, 2022, 02:36:59 PM »
 The function COUNT_ARGS is not right, when the parameters are like :

"%*d"
"%.*d"
"%*.*d"

which uses an extra argument for each '*'.
See the picture enclosed

6
Quote
it's video file conversion system(2.4.1) is much superior to the most recent version available.

@TFTLCDCyg, May I know the details on how the video conversion utility in EAB 2.4.1 is superior to the most recent version (EAB2.6.0?, I guess)?   

7
Discussion - EVE / Re: Concerns with ESD and generated source
« on: June 14, 2022, 07:46:08 AM »
As far as I know, in ESD generated source code, there is an "idle" callback function which users can reimplement and wait there till touch is detected.

8
ESD will generate the ANSI C code for the selected platform. Arduino is using its own C++ variety language to program.  However, I think it is possible to build C for MCU on the Arduino board.  You may need to modify the code in the HAL of the ESD-generated application. You may refer to this porting guide:

https://brtchip.com/wp-content/uploads/2021/06/ESD-4.10-Exported-Project-Porting-Guide-for-STM32L4-Discovery-Board-and-FreeRTOS.pdf

9
Shared Projects / IoT example projects and library in circuitPython
« on: August 03, 2021, 10:23:41 AM »
Raspberry Pi Pico works well with Eve-based display modules. 

It is an open source project and you can get it from:

https://github.com/BRTSG-FOSS/pico-bteve



10
Discussion - EVE / Re: How to make a selected color transparent?
« on: June 03, 2021, 11:02:34 AM »
try to convert the PNG to ASTC format with EAB . ASTC preserves the alpha channel.

11
Discussion - EVE / Re: BT81X rendering ASTC image from flash
« on: February 24, 2021, 09:21:40 AM »
I may suggest to use larger ASTC block (ASTC8x8) if possible.

12
Discussion - EVE / Re: why can't I read the Manufacturer/Device ID?
« on: January 20, 2021, 02:58:22 AM »
Here is an example code in python to access the registers of flash:
Code: [Select]
def bb(*b):
    return pad4(array.array('B', b).tostring())

def txrx(eve, txpart, n_rx):
    eve.cmd_flashspidesel()
    eve.cmd_flashspitx(len(txpart))
    eve.c(bb(*txpart))
    eve.cmd_flashspirx(0, n_rx)
    if n_rx:
        eve.finish()
        return array.array('B', eve.rdstr(0, n_rx))

def do_sfdp(eve):
    """ Dump the SFDP area in binary """
    eve.cmd_flashdetach()
    eve.cmd_flashspidesel()

    eve.cmd_flashspitx(1)
    eve.c(bb(0x9f))
    eve.cmd_flashspirx(0, 3)
    eve.finish()
    print repr(array.array('B', eve.rdstr(0, 3)).tolist())

13
Discussion - EVE / Re: ARGB4 image corruption.
« on: January 20, 2021, 02:45:30 AM »
how do you get ARGB4 bitmap ? through PNG decoding from cmd_loadimage at run-time or pre-processing PNG into ARGB4 through EAB?

14
Discussion - EVE / Re: accessing custom font Glyphs in Flash
« on: January 20, 2021, 02:38:54 AM »
If the glyph is in ASTC and stored in flash, the address shall offset from 0x800000.
See the picture from programming guide

15
You may check the EvChargePoint example project ,which is under installation path
"Examples\Advanced"

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