Drive WS2812 with Nucleo-G031K8 like i'm doing in the attachment

[TEl B]

With evaluation board of STM32-P107 I have a working code for controlling led strip (or more via GPIO's of port B) of 60 leds. I am more concerned with initialization functions DMA_init, TIM2_init and the associated interrupts. In the NUCLEO-G031K8 you only have 5 channels and a timer clock frequency of 16Mhz. I want to control led strips with NUCLEO-G031K8 exactly in the same way as STM32-P107. Then the DMA's can do their job, and the controller can keep busy with other things.

Can somebody convert the code in the attachment to Nucleo-G031K8?

[Amel NASRI]

Hi @TEl B ,

Welcome to ST Community!

STM32-P107 is not an ST board but it contains an STM32. So we cannot -at ST- do the reverse engineering of the example you need.

However, I suggest you start to build your own application based on STM32CubeMX by configuring the required GPIOs, DMA channels & Timers.

Try it this way and come back to the community in case you are blocked somewhere.

-amel

[TEl B]

Hi Amel,

I can not do everything with STM32CubeMX.

Would you like to check the ini and interrupt functions in the main.c file in of project in the attachment. I don't know what i'm doing wrong, i see no activity on the GPIO.

Best regards,

Taoufik

[Pavel A.]

Here you can get help with your project and 3rd party board .