CC2340R5: ADC interrupts and DMA

Hello Ian Chuter,

If you open your syscfg and find ADC you can click on "examples" under ADC which will bring you to a page in your SDK which describes how to configure the ADC.

There is an example for "Executing multi-channel sampling" which should be helpful for you. There are also a few ADC examples in the SDK itself under drivers. 

Thanks,
Alex F

Hi

The multichannel example in the sysconfig example is still a blocking call waiting for the ADC, and the only example I can find in the SDK is adcsinglechannel.

Hello Ian,

Did you already add "params.isProtected = false"? I will also reach out to the wider team here to see if we have something that can help! 

Thanks,
Alex F

Hi Alex, I have tried with the protection parameter false and the performance of the ADC using the busy waits is not sufficient for our application. 

Please let me know as soon as possible on the interrupt or DMA usage of the ADC.

Hello Ian, 

You can control the interrupt status of the ADC by making use of the following functions (found in CC23x0R5DriverLibrary: [adc.h] Analog to Digital Converter (ti.com)):

ADCEnableIntterupt

ADCDisableInterrupt

ADCRawInterruptStatus

ADCMaskedIntteruptStatus

ADCClearInterrupt

You can also check the status of the DMA transaction by the following:

If you want to check out our DMA library/functions visit CC23x0R5DriverLibrary: [udma.h] Micro Direct Memory Access (ti.com). 

Thanks,
Alex F