RM68120 support #1704
Replies: 8 comments 3 replies
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To do this I need the initialisation code sequence. Do you have a copy and have you you tested it to show it works? |
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I do not have this display. I thought about buying one. I asked the seller for the datasheet and for the initialisation code sequence. I will write again when I have the datasheet. |
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I found some init code here that might work. An adaption of the example code there would also be a good starting point to test the display interface. |
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I was wondering what display Espressif is using on the HMI Dev kit. Now I know ;-) |
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The HMI devkit code seems to support quite a few displays: I am concerned that the RM68120 seems limited in vendors and it is an old chip design. So supplies may dry up. If you want touch then go for a capacitive one as the resistance screens scratch easily and are typically noisy and inaccurate. Capacitance ones often support multi-touch and swipe too. |
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I have added RM68120 support to v2.4.43. It is competely untested but might work as the changes are not that significant, however I may have missed something... Thanks, but no need to send me a display, I have one on order with the capacitance touch screen! The aim is to replace my resistance based touch macro screen (based on this code) with a more pleasant to use multi-touch capacitance screen. |
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My RM68120 display arrived from China today. It will be a couple of weeks before I can try it with the library updates. I did not expect it to arrive quite so fast! Looks well made. I think the interface option links will need to be changed for 8 bit parallel operation. |
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The RM68120 support included in the library does not work. The only available datasheet has lots and lots of omissions, misleading information and errors! I have managed to reverse engineer the interface from Espressif code and some guessing (!) and I now have an RP2040 Pico driving the display very nicely in 8 bit parallel mode. This code is not ready for release yet. |
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Hi Bodmer,
do you think you could add support for the RM68120 display driver (8bit parallel / SPI)? If I would send you this display:
https://de.aliexpress.com/item/32878013749.html
With best regards!
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