Acquisition of CVI HSDIO (NI6541) with external flash

I use NI6541 for interfacing with a Component Manager (I know... too much... but it is available).  I would use 4-bit trigger output and 12 bits as gain entry.  And an external signal as a trigger/pause of entry.  The Manager of signals to acquire ~ once every 100ms.  On this event, I want to read/fetch the 12 bits and about 100 ms later write the 4 bits.  I can't find the code example that is very close.  I know that I have no doubt that you want to run the clock acquire max 50 MHz and pause/relaxation allows to acquire the minimum (2?) samples.  And I would use the trigger/break signal to trigger an event as CVICALLBACK; or a means of BLOCKING DO NOT read the acquisition pending... I have other tasks to do.  Can you give me give me advice?

Hey bjasper,

Without a fast PC, you would probably look at dynamic acquisition. You mentioned that each signal could happen without the other or a combination of both. This means that the only time where you do not want to trigger is when all channels are void? You can watch using niHSDIO_ConfigurePatternMatchRefTrigger. One of these entries is "trigger when. If we set this parameter to NIHSDIO_VAL_PATTERN_DOES_NOT_MATCH (37), the program can be set to trigger when the lines go high. In this way, if channel 3 is going high, the model no longer fits 0 so it triggers. If all of them go up at the same time, the model does not and it triggers.

Tags: NI Hardware

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