nRF52832 / nRF52840

[elivb270161]

Hello 

I would like to point out that I have no knowledge of electronics.

I am in the advanced stages of building a project on the basis of Adafruit feather nRF52832, The project will be minimized to size of a watch and it is definitely possible(Hope) to become a start-up. In recent days I'm starting to check what type of screen to use, I think I'll use the AMOLED 1.39 400X400.

https://www.alibaba.com/product-detail/1-39-400x400-full-color-circular_60817940872.html?spm=a2700.icbuShop.prewdfa4cf.14.647461a6bu9xDi

note: In the miniaturization of the project I want to use the Soc nRF52840 chip.

The interface of the AMOLED is MIPI DSI

My question:

1. Can I connect the DSI to nRF52, if yes what connector can I use?

2. Can (Soc nRF52832 or nRF52840)  handle the AMOLED In terms of data traffic and speed?

3. If you have insights I would love to hear.

Than you, have a pleasant day

eli

[eriknorth]

Hi Eli,

Unfortunately nRF52840, nor nrf52832 has on-chip hardware support for MIPI-DSI.

Your alternatives here would be to use different display that supports I2C or SPI (or Parallel) communication format 
OR
You could use some co-processor / driver that supports MIPI DSI and control it though nRF52 SoC.

/Erik

[elivb270161]

Hello Erik

Thanks for your response

You indicated that Soc Nrf5840 support MIDI DSI, can you refer me to the document?

With your permission Another question, when adafruit company is launching a new product link feahter Nrf52832 board and to get support in Arduino we install the BSP, Does Nordic provide the library?

Thanks

eli

[eriknorth]

Hi Eli,

You missunderstood me, I was saying that none of the both SoCs (nRF52840, nRF52832) has such support.
You are left with the two other options that I mentioned- other display or co-processor/driver for MIPI DSI.

Personally I have not worked with Adafruit Feather boards, however as far as I know they are using Nordic SoftDevice/BLE Stack and some parts of the SDK. Other than that most of the code base is developed and maintained by Adafruit team.

/Erik

[elivb270161]

Hello Erik

I'm sorry I did not understand you properly.

I asked you before if  the Soc Nrf52832 can handle with midi DSI

eli

[eriknorth]

Hi,

Directly it cannot handle MIPI DSI as there  is not hardware peripheral built into the SoC.

However you can use another chip (co-processor, driver, bridge) to drive the display. For example, quick googling gave me this here:
SPI to MIPI DSI bridge

I want to note, that I have never used this and this is just an example, there are other solutions out there as well that might be better for your application.

/Erik

[elivb270161]

Hello Erik

I thank you for your patience.

good day

eli