2024-05-09 06:03 AM
Hello all,
Im looking for LCD Display that I wanted to interface using ST32H747XIH6 Microcontroller, with its MIPI DSI 2 lanes interface. I see it can only support upto 800x480 in the datasheet, or am i wrong?, can the MCU drive larger resolutions like XGA, or can i enable 800x480 pixels in XGA display, like down scaling in software?
So, Im looking for a suitable LCD of MIPI DSI interface type, but not able to find ready to buy on Digikey and mouser, kindly suggest a few LCD part numbers, I'm looking for 4.5 inch to 6.5 inches (diagonal) display sizes.
Thanks in advance,
Arvind.
2024-05-09 06:17 AM
Size of Display != Resolution of Display
You can use RGB output on IC's supporting DSIHOST
The bandwidth limits are in the order of 1.1 Mpixel, horizontal/vertical limits coming from bit-width of those counters.
Could do 1388x768, can't do FHD/UHD
2024-05-09 06:24 AM
Digikey and Mouser aren't good sources for a broad range of panels. There are other vendors that specialize in panels, the market for cheap panels are driven by volume users on tight upgrade cycles. So no 10 year availability non-sense.
Perhaps look at vendors like Newhaven Displays
2024-05-23 05:58 AM
Thank you for the response ,
What about MIPI Lanes ? can I interface 4 lane display with STM32H747 which has only 2 lanes of MIPI?
2024-08-21 11:52 PM
@Arrvinddd do you have any luck to source the needed display? I got in to the same situation and have a hard time to find the 6", 2 lanes MIPI-DSI display to use with my STM32H747
2024-09-17 09:14 AM
Hi there.
https://focuslcds.com/product/e50ra-i-mw490-c/
E50RA-I-MW490-C
I found this , haven't tested yet though, let me know if you do so.
2024-09-17 09:40 AM
It only provides for TWO lanes, now you can get different display controllers that have 4-lanes, but can be configured into 1, 2 or 4 lane modes, typically to get the frequency down.
You'd need to review the documentation for the display controller on the panel to understand the operational modes, and expectations when paired with the display.
As I said the ceiling here, realistically is 1.1-1.2 Mpixels, unless you can drop the refresh rate significantly. Colour depth can buy you some bandwidth.
2024-09-17 09:57 AM
https://focuslcds.com/wp-content/uploads/Drivers/ILI9806E.pdf
480 x 864 x 24bpp
https://community.st.com/t5/stm32-mcus-touchgfx-and-gui/how-do-ili9806e-dsi-move/td-p/203350
Given the propensity of STM32 in the market, I'd imagine someone, perhaps the vendor, as worked examples. Or you could find Github examples that get you close.