speed up SCPI communication

[alex91]

Hi!

I added commands to the SCPI server to transfer waveform data form Matlab directly to DDR memory. It works nice but it is very slow (~120kb/s). For my command I copied the "SOUR#:TRAC:DATA:DATA" command which is used for transfering arbitrary waveform data.
I already increased SCPI_INPUT_BUFFER_LENGTH and MAX_BUFF_SIZE which gave a performance boost. but it is still very slow.

I also tried to comment out my portion of the code (I transfer data and do nothing with it). But that had no influence on performance.

Is it possible to speed up the transfer rate?

thanks in advance
alex,

[Nils Roos]

Sorry for the late reply, I haven't had much spare time the last few weeks.

Parsing ASCII float values has a huge performance impact on the Red Pitaya. Have you tried to transmit binary samples (ie 16bit integers in binary representation) instead? You'd have to adapt the scpi routines for receiving the data, but it should speed things up considerably.