I have to produce a serial stream over a single channel of a digital I/O (PXI6552, 8Mbits per channel), more precisely an ATM packet stream of 53 strictly defined bytes. I used the example “Continuous Generation - Stream From Memory.vi” as a starting point.
As I have understood, since the data width of the PXI6552 is 4 bytes, one has to generate 32bit words, and each bit of a word is sent to a corresponding channel. Thus it seems to me that it is impossible to generate a simple binary stream (for example, to generate pseudo random sequence) and to send it over a single channel. Although I select the exact channel in “niHSDIO Assign Dynamic Channels.vi“ I still have to generate 32bit words for all the channels - am I right?
Second problem is Samples Per Channel Increment, because "the number of samples in a waveform has to be in a certain increment", which is 32 in my case. It seems that I cannot generate a sequence of for example 53x8 bits that are continuously sent. The way I see it, the only way is to generate 32 times repeated sequence of 53x8 bytes, as I did in the attached modified example, but it seems like very inefficient solution.
Is there any other way to realize this with PXI6552?
Iva
