Colibri iMX6ULL Bluetooth and WiFi

Hi All,

I have a generic question regarding to Bluetooth and WiFi working in parallel on the same radio module and with shared single antenna on Colibri iMX6ULL. Does anyone tested it?
Should I expect any timing, performance or any other issues when transmitting/receiving data via both interfaces at the same time??

Thanks,
Adam

We haven’t characterised the performance impact of using bt and wifi. We’re sharing not only the airtime but also an SDIO interface, and the SDIO interface is limited in performance to 4-bit high speed mode. Therefore you should expect both performance and timing hit when using both. Severity will depend on multiple factors (bandwidth used, wifi\bt rates, signal quality, operating frequencies, etc.), but it’s hard to quantify without testing for your particular use case.

Dominik,

Thank you for response.

My use case is a Colibri which will be permanently scanning other device BLE advertisement, then pairing, authenticating and receiving ~100Bytes messages. Pairing may happen quite often, every couple of seconds. From time to time (lets say every couple min) device has to sent message (~5kB) via WiFi to MQTT broker.

Do you provide linux drivers or API for WiFi/BT module (AW-CM276NF)?
Per https://developer.toradex.com/knowledge-base/wifi there are no linux drivers…

Adam

hi @Wiszo

Regarding the Linux drivers for AW-CM276NF, you can have a look in the following folder: drivers/net/wireless/marvell/mwifiex/pcie.c.