Graphics library

[Archer]

Hi everyone,

May I know does the nRF51822 SDK support any graphics library, like emWin, uC/GUI, or others? Because I would like to present a colorful and graphical on the display (a small size OLED or LCD).

p.s.: I found a similar question (link) on developer zone but no answer to it.

Thanks.

Regards, Archer

[endnode]

I guess that has nothing to do with nRF5x itself. It doesn't have any graphic coprocessor nor any sopecific interface so just GPIO/I2C/UART/SPI displays are possible. Then if the library can run on ARM Cortex-M then it should work on nRF5x chips as well. What can be a problem:

• If it uses some extended instructions (ARM Cortex-M0 doesn't support full Thumb 1/2 sets and also no DSP or floating point instructions). But if you have it in source you might substitute them during build by SW implementations (which will be much slower).
• You can easily hit performance issues. Firstly because of ARM Cortex-M0 design limits and secondly when you will be using BLE radio (which will interrupt any other computation unless it is DMA assisted transfer on pre-buffered interface like SPI...)

However you can see some interesting demos with nRF52 (like this and this).

[Archer]

Got it.

Thanks for your prompt reply.

[Jakub Rzeszutko]

Hi,

We have prepared a simple GFX library - maybe it will be usefull for you. infocenter.nordicsemi.com/.../lib_gfx.html

It is available in SDK13.x and SDK14.x but it shall be not a big deal to import it to SDK 12.3 (last one supporting nRF51)

[Archer]

It's very helpful to me. Thank you guys.

[wylng]

ucgui can be ported, i have just do it