WIFI Shield DMA support

OpenMV Products
1

Hello All,

I just started to use the OpenMV H7 plus with the WIFI shield and I noticed that the throughput is lower (~5 Mbits/s) than what it could be expected for the WLAN IC.
From the source code I couldn’t find any mention of DMA been activated for WLAN SPI, is that correct ? Just wondering if there’s a technical limitation for that.
There’s any plan to include DMA support for WIFI Shield ?

Best regards,
L.L

2

The WiFi performance has been improved since 3.6.2, if you have an older firmware please update first.

3

Performance should be in the 15 Mb/s range now. The performance was bad before because the firmware would wait for an ACK per packet. It no longer does.