LabVIEW
Error -52000 undefined error
for(imstuck):
You're definitely right about the overflowing part (see screen shot below). How big is the chunk of data you're sending to the FIFO? Would you be willing to post any screen shots of the code?
My guess is we'll need to increase loop rates and decrease the chunk size that we're writing to the FIFO.
it's fixed point data and I am putting 14,336 elements (7 cylinders * 512 samples * 4 channels/cylinder) in the FIFO that I am grabbing. The problem is, I can't put less than that because I am taking data from an engine with multiple cylinders which could each be offset. Those offsets may change. So, I don't see another way to know in what order the data is being put in my DMA FIFO. For example, let's say cylinder 2 is offset from cylinder 1 by 10 encoder ticks on one engine and cylinder 3 by 20 ticks. Now on another engine cylinder 2 is offset from cylinder 1 by 20 ticks and cylinder 3 by 10 ticks. That means data will be put in my FIFO in a different order depending on the engine. I then have no idea how to decimate and process it at the other end. Therefore, I'm waiting until I know I have all the data, then queuing it up in a specified order to be decimated. My FPGA code is posted here. On the RT side, I have posted a screenshot of the loop in which I am getting an error and deqeueing elements. The fixed point data being read is signed 20 bits word length, 5 bit integer length, which is the default data type returned from the cRIO modules. I believe this is a LOT of decimal places that I don't need so suggestions appreciated.
