Reading streamed data ldc1000evm using c sharp

jonathan ingram1

Other Parts Discussed in Thread: LDC1000EVM

Thanks for your answer to my spacing questions in a different post.

I am reading streamed blocks of data (1024 bytes Rp- 1024 bytes freq) from the ldc1000evm received after the "06" command.

The read rate seems to affect the results and there seem to be zeros popping in some times or perhaps it is a varying datastructure?

Any suggestions

Jonathan

over 11 years ago

0 Charles Cheung* over 11 years ago

TI__Intellectual 2790 points

Hi Jonathan,

Are you stopping the data stream before changing the sampling rate? You will have alignment issues if the sampling rate were changed during a data stream.

Thanks,

0 jonathan ingram1 over 11 years ago in reply to Charles Cheung*

Prodigy 110 points

Hi Charles

I am not changing the sampling rate. Is there further documentation for the protocol for communicating with the LDC1000EVM beyond the information I have found below. I think the issue is more to do with my reading rate.

It is not clear what happens when my processor reads faster than the ldc1000evm produces data and how to detect when the buffer is full and the exact status. I am sure I am missing something!

regards

jonathan

0 Charles Cheung* over 11 years ago in reply to jonathan ingram1

TI__Intellectual 2790 points

Hi Jonathan,

The information there is correct, however, there is a "06" echo packet from the EVM to Host that must be read. This packet is 32 bytes in size.

After this packet is read, then you would buffer every 2048 bytes before processing.

Thanks,

Sensors

Sensors forum

Reading streamed data ldc1000evm using c sharp