Hello again,
we are experiencing performance problems with the 6321 in our environment - 10 kHz system clock, i.e. the analog input channels should be read in every 100 µs. This works fine with one card (differentially cabled), but if we plug a second card the systems just comes to a grinding halt.
It appears, that one AI channel register access is taking us about 4 µs, which would mean 64 µs using 16 channels. We have tried RLP, "pure" DMA and DMA using interrupts.
Am I getting something wrong or was the 6321 just not designed for this kind of application?
Best regards,
Philip
