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3.5 inch rpi lcd on CB1 #53

Open DmitriyAD opened 1 year ago

DmitriyAD commented 1 year ago

How do I start the screen 3.5 inch rpi lcd on the BIGTREETECH PI4B Adapter V1.0 and CB1 ?

looxonline commented 1 year ago

The CB1 does not support DSI. You need to use an HDMI display. Future compute module boards will support DSI.

DmitriyAD commented 1 year ago

The CB1 does not support DSI. You need to use an HDMI display. Future compute module boards will support DSI.

This screen is not a DSI he's a RPI http://www.lcdwiki.com/3.5inch_RPi_Display

looxonline commented 1 year ago

Ah, it's an SPI display. Some CB1 boards will support it while others will not. It depends on what version you have. Some used 1.8V on the SPI lines to provide GPIO at a range of voltages for different applications; however, this was later adjusted so that the SPI lines operate at 3V3 to provide compatibility with devices like this. I believe the V2.2 boards have the 3V3 lines.

DmitriyAD commented 1 year ago

Ah, it's an SPI display. Some CB1 boards will support it while others will not. It depends on what version you have. Some used 1.8V on the SPI lines to provide GPIO at a range of voltages for different applications; however, this was later adjusted so that the SPI lines operate at 3V3 to provide compatibility with devices like this. I believe the V2.2 boards have the 3V3 lines.

So I will not be able to start this screen)?

looxonline commented 1 year ago

Ah, it's an SPI display. Some CB1 boards will support it while others will not. It depends on what version you have. Some used 1.8V on the SPI lines to provide GPIO at a range of voltages for different applications; however, this was later adjusted so that the SPI lines operate at 3V3 to provide compatibility with devices like this. I believe the V2.2 boards have the 3V3 lines.

So I will not be able to start this screen)?

It all depends on what version CB1 you have. Also, I have not tested whether the debian distro has the display and touch controller drivers for that display. I would assume that it must have them or that they can be installed though.

looxonline commented 1 year ago

Ah, it's an SPI display. Some CB1 boards will support it while others will not. It depends on what version you have. Some used 1.8V on the SPI lines to provide GPIO at a range of voltages for different applications; however, this was later adjusted so that the SPI lines operate at 3V3 to provide compatibility with devices like this. I believe the V2.2 boards have the 3V3 lines.

So I will not be able to start this screen)?

It all depends on what version CB1 you have. Also, I have not tested whether the debian distro has the display and touch controller drivers for that display. I would assume that it must have them or that they can be installed though.

I actually have a screen like that so I may test it this weekend.

DmitriyAD commented 1 year ago

Ah, it's an SPI display. Some CB1 boards will support it while others will not. It depends on what version you have. Some used 1.8V on the SPI lines to provide GPIO at a range of voltages for different applications; however, this was later adjusted so that the SPI lines operate at 3V3 to provide compatibility with devices like this. I believe the V2.2 boards have the 3V3 lines.

So I will not be able to start this screen)?

It all depends on what version CB1 you have. Also, I have not tested whether the debian distro has the display and touch controller drivers for that display. I would assume that it must have them or that they can be installed though.

I actually have a screen like that so I may test it this weekend.

I would be very grateful

vdd9474a commented 1 year ago

Is there some news about this issue? I have a V2.2 CB1 and I also would like to use this kind of TFT screen

Pneumanifest commented 1 year ago

There's a new TFT35-spi screen that is designed for use with the CB1 and it works great... looks like it's currently sold out but here's the link https://biqu.equipment/products/bigtreetech-tft35-spi-v2-1-touchscreen-io2can-module