Helpful ReplyHot!Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony

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electronicsgeek
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2018/01/13 13:22:37 (permalink)
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Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony

after searching microchips own development boards i have not found a 10inch (1024 x 600) Controller based solution. 
 
My Goal is to implement a rather complex GUI on 10 inch display in an industrial application , where Host MCU (PIC32mz) will be mainly concerned in routing Ethernet and Serial + handling GPIO from Resistive touch and buttons .... the display and graphics should be kept outside to relief the micro from the burden , probably controlled by parallel master port.
 
I am looking for recommendations in this field since i am new to TFT and color LCDs and would like something compatible with Harmony to make the learning curve faster. 
 
to summarize:
1-Any LCDs that fit this category ( with built in controller compilable with microchip Harmony ) . Preferably with resistive touch
2-Is it possible at all to control such a big display and do the rest of the tasks .
3-What kind of experience and how easy it will be to implement the Graphics part 
 
thanks and regards
post edited by electronicsgeek - 2018/01/13 13:24:15
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NKurzman
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Re: Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony 2018/01/13 13:55:52 (permalink)
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You can use a pic32mz with a built in graphic controller. (DA series) or an external graphic s controller IC. Harmoney supports a few. If you want one it does not support you would need to write a driver for it.
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electronicsgeek
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Re: Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony 2018/01/15 18:42:09 (permalink)
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Thank you for the suggestion
After following up with your answer i looks like it is not possible using microchip current support :
1- PIC32MZ (DA) series support Up to " 800x480 (WVGA) with Overlay (application dependent). Still Image up to 1280x1024 (SXGA)" from datasheet directly . and they have a huge number of pins (BGA mostly) through which 28pins go to the LCD. In harmony you choose GLCD option in controller type
 
2-The reset of controllers supported by harmony can go only up to 800x480 pixel.
    a-Epson S1D13517 (best) : 960x540x24bits
    b-SSD1926 :  240x160
    c-SSD1963 :   864 x 480 x 24bit 
    d-OTM2201A : 176x220
    e-ILI9488 : 320x480
    f- Controllerless : didnot find but probably 640x480
 
So it looks like i have to write a custom driver , or look somewhere else than microchip especially with no development boards . :(
Hope if someone else is looking will find this post helpful 
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electronicsgeek
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Re: Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony 2018/01/15 18:49:11 (permalink)
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There are some really nice LCDs with LVDS electrical interface acronym for  Flat Panel Display Link  . 
I am not sure if it is compatible with microchip micro-controllers or any other micro-controller in the market . and whether or not it needs a graphical controller . 
 
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NKurzman
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Re: Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony 2018/01/15 19:14:23 (permalink)
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a- It works but it is not a great chip for this application.  The Chip can not be read back so things like anti-Aliased fonts (unless Harmony V2.XX did something different).  It does not have line or box draw. 
f- That defend on RAM and CPU cycles.
 SO not the Best performer.  You may want to look at other GFX Chips and do you own driver.
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TechToys
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Re: Graphical LCD 10 inch with controller compatible with PIC32mz and Harmony 2018/01/17 08:14:50 (permalink) ☄ Helpfulby electronicsgeek 2018/01/18 13:54:56
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You may consider RA8876 supporting 1366x768. I have tried 1280x720 for 720p without any problem, driven by a slow Arduino SPI too. The performance is not bad. From YouTube you may search Arduino HDMI to take a look at the outcome. Working on a Harmony driver for it with PMP. Hopefully to be available in a month...
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