NUCLEO-H723ZG ADC with DMA

[TOsso.1]

Hey

I am working with NUCLEO-H723ZG. I try to sample signal of sine wave at 25KHz to buffefr with size of 100.

I want to get something Like Interrupt when the buffer is full.

I look for some examples in the internet about the configuration of the IOC but I think I have a problem.

1. I can't see in my IOC the the DMA Continuous Request label, in the example in the internet I saw thah this label is importend and need to be change for working with the DMA.

2.I have a label in the IOC on ADC section with name of Conversion Data Managment but in the examples I didn't see this label.

I try to work with mode that the ADC will sample at baud of 100K and his reference will be the timer.

I try configure all the parameters in few ways but I didn't get good resaults. The data in the buffer were wrong (I try to take the data to MATLAB and check how it is look like). I try also to sample signal at 500Hz and the resault were not good also.
I attach some picture from my IOC configuration.

I try to work with ADC1 CH5 and TIMER3

In the CLOCK section MY timer clock is 137.5MHz and ADC CLOCK is 96MHz

Thank you very much

[TOsso.1]

add more picture from the IOC

[KDJEM.1]

Hello @TOsso.1 ,

--> 1. I can't see in my IOC the the DMA Continuous Request label, in the example in the internet I saw thah this label is importend and need to be change for working with the DMA.

2.I have a label in the IOC on ADC section with name of Conversion Data Managment but in the examples I didn't see this label.

Are you using an ST example? Could you please share example link?

Conversion Data Management in STM32CubeMX means:

For more information about this feature, I advise you to refer to RM0468 section 28 Analog-to-digital converters (ADC1/ADC2)

Note that the DMA circular mode is available to handle circular buffers and continuous data flows (e.g. ADC scan mode).

I think ADC_DMA_Transfer example can help you.

Thank you.

Kaouthar