WiFi stack support on nTF528040

[ilya]

Hi Susheel,

Thank you for your support.

 

We would like to get your advice related our new design, with the followings:

1. Assume we need to support besides of the BT5.0 & Thread & ZigBee stacks, additional WIFI stack (ass additonal module on board). 
   1. Do you think the nRF52840 will be capable to handle all stacks: BT5.0 & Thread & ZigBee  + WiFI stack + our Reader control task (based on RFID technology)
   2. How can we estimate the remaining CPU time for other tasks?
2. In case your answer to above Question#1 is NO, what do you think about the option of system with multi processors, i.e. taking additional processor as a “Master”, which will treat the nRF52840 as a slave for “BLE 5.0 + Thread + ZigBee” also controls another salve for WIFI, and will manage all the RFID Reader activities as well (control the antennas, read RFID Tags, save in DB, forward information to external controller, etc.)
3. As for “Thread Boarder Router”, how popular is it inside standard WIFI Routers?  What is the forecast related those “Boarder Routers”

 Thank you

Ilya.

[haakonsh]

1. a) I seriously doubt you will be able to run a wifi stack alongside the other stacks on the nRF52. 

b) You will need to know the detailed network traffic of your BLE, zigbee, and thread communications. It's anything from 0 -  ~80% CPU availability, it depends on what you're doing with your stacks. 

2. That seems like a good solution. BLE has a good serialization library already and zigbee/thread should be able to be used in a similar manner. 

3. I do not know. I think this is a question your should ask the OpenThread group or router vendors directly.