Hello All,
I am trying to do RTDX with a DSK6416 board. My ultimate objective is to be able
to transfer a very large number of samples ( ~ 10 million ) of a time series
signal to a computer and process the information.
I ran into a few issues in this quest.
Firstly:
I envisioned that I could attain my objective by doing many small transfers.
( I gave up on the idea of doing sample by sample transfer as the RTDX call
slows down the execution enough that my ADC sampling is affected and I start
losing samples! )
To this end, I created a buffer of size 10000 samples and the idea is to do the
RTDX transfer periodically through a loop. For this process to work I need the
RTDX data to be appended to the already existing (previously transfered) data
and make one giant rtd file which I can be process in the end.
However, each time I make the transfer, my previous data is getting overwritten.
I have made sure that I checked the "open file in append mode" in the rtdx
configuration tool. Despite this, it overwrites my data. Is the anything more
that I should be doing besides checking the append mode? Is there anything that
can fix this problem?
Secondly:
Is there an alternative way to transfer a very long time trace in a single go
(like 10 M samples)?. I have tried this but the program just breaks down. I
figure it has to do something with my memory allocation but I am sure I am
putting the data in SDRAM which is available in plenty! (16MB).
Help will be greatly appreciated!
Thank you so much.
Bhargava
PS: My ADC sampling rate is 96 KHz if you wish to know.
