[Waveform Software] How to Generate Pattern More Than 32Ki with Pattern Generator?

[Yongjun]

Hi, I'm using Digital Discovery and really satisfied with this product.

However, I want to generate about 2M length pattern at once but I think the software only support up to 32K. (I want to map one layer of ResNet to my custom computing circuit)

Is there a way to use a quite large pattern length?

[artvvb]

Hi @Yongjun

As you've mentioned, the Digital Discovery's pattern generator buffer is only 32k, and can't be increased past this. You could do multiple patterns in a row: fill up the patterns buffer with one set of data, push it out, then replace it with another set of data, push that out, and so on; to get to the necessary total buffer length, using WaveForms SDK or the Scripts instrument in the application. That said, you wouldn't be able to get a full sample rate in either situation, since there's still PC-side software involved for both. The DigitalOut_Custom example could be a good starting point for this. There's also a pattern generator example in this guide: https://digilent.com/reference/test-and-measurement/guides/waveforms-sdk-getting-started

Thanks,

Arthur

[Yongjun]

Hi Arthur,

Thanks a lot for your answer.

Yongjun