QTee

When I review the proposed solution of an external trigger, it involves an additional "box" to be purchased. Is there any way for just the Digital Discovery to have an external trigger into itself through one of the input pins? This is my intended ask for a new feature if it doesn't already exist. Is there a spare pin or test pad inside the DD box that is already used as an input? Obviously this involves a hacked situation.

Is it possible to add a new feature to Digital Discovery? What is needed is an input to externally trigger the output of the programmed pattern. Some deterministic delay between external trigger start and first programmed pattern bit can be accepted as long as it is deterministic. Ideally, the trigger can output the pattern as programmed into the UI (32Kbit length) or loaded into the 256MB memory buffer. Losing the use of one bit on the Pattern Generator side or the Logic Analyzer side would not be a detriment based on the gain of the use of an external trigger.

I am new to Diligent and am looking to purchase the Digital Discovery device. I have used a different pattern generator previously and am looking for a useful replacement. I am trying to generate an output bit pattern that has: 1. pattern definitions of 1024 bits in length, for example 2. there are 32 unique pattern definitions, for example 2.1 if we name each pattern, we have patrn01, patrn02, ..., pattrn32 3. each output bit is a combination of a sequence of patterns 3.1 D01 may have a definition of, N*patrn02 followed by M*patrn17 followed by P*patrn21, for example 3.2 ... 3.3 D16 may have a definition of, X*patrn03 followed by Y*patrn09 followed by Z*patrn31, for example 4. every output bit would have a total length of 512 pattern definitions 4.1 output bit length would be 2^10 * 2^9 = 2^19 = 512Kbits long 5. want to infinitely repeat the output bit pattern 5.1 alternatively, want to have an external trigger repetitively trigger the pattern How can this be implemented? Am aware of the 32Kbit length restriction on each output bit. However, there is a mention of a 256MByte or equivalently 128MWord memory that is used in the Python code DigitalDiscovery_Play.py . Is it the case that I need to generate a 128MW pattern, load it into the memory, then have it played? Can the 128MW memory be run by looping from address less-than-128MW to 128MW (there is a mention that Play data is aligned to the end of DDR memory) instead of playing the entire memory? It would be helpful to identify the line of Python code that corresponds with the response to the question. I'll try to figure it out from reviewing the code but sometimes it is not so obvious. I have not purchased a device at this time. Thank you.