TMS320F28375D: fastest way to get endless as many readings as possible?

Frederik Baars

Part Number: TMS320F28375D
Other Parts Discussed in Thread: C2000WARE

Hi,

what is the fastest way to get endless - as fast as possible - as many readings as possible - always from the same channel?
Do you have to use the sequencer (round-robin burst mode) or is there another possibility?
The next question would be where the results would be stored.

Thanks
Fred

over 4 years ago

0 Gus Martinez over 4 years ago

TI__Mastermind 29471 points

Hi Frederik,

Can you clarify what are you referring to? ADC readings?

0 Frederik Baars over 4 years ago in reply to Gus Martinez

TI__Intellectual 2115 points

yes, the customer wants to convert permanently one channel with each ADC and evaluate cyclically the measurement results in the software.

0 tlee over 4 years ago in reply to Frederik Baars

TI__Guru 62975 points

Fred,

You can reference the adc_soc_continuous and adc_soc_continuous_dma examples in C2000Ware: ~\C2000Ware_XXXX\device_support\f2837xd\examples\cpu1

-Tommy

0 tlee over 4 years ago in reply to tlee

TI__Guru 62975 points

Fred,

Some more context. We typically use continuous to describe self-triggering background conversions.

For better system synchronization or periodic control, a TIMER- or EPWM-based trigger with oneshot mode is recommended. You can see adc_soc_epwm for an example of this.

The DMA is ideal for storing the conversions to a buffer in system memory for batch processing.

-Tommy

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28375D: fastest way to get endless as many readings as possible?