Transfer Latency / DMA burst transfer

Transfer Latency / DMA burst transfer

Hi all,

 

We are experiencing higher latencies under low event-rates (~4ms). I am pretty sure, that the main factor is the DMA burst transfer latency (https://support.prophesee.ai/portal/en/kb/articles/evk-latency )

 

I have a few questions:

1. Can I change the MIPI-Frame length (e.g. from 4ms to 1ms)? Or does that require work I cant do myself?

2. If I use the (hacky) workaround of just triggering events in some unused roi to quickly fill up the 16kBit of events that trigger a transfer, can I filter this roi already on the camera? I guess HW-Roi would be too early? I dont really want to transmit all these useless events.

3. Would the STM32 devkit be a possible solution to that problem?

 

Best,

Paul


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