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lescan (& hcidumpo) is slow to pick up advertisement packets

Brajesh Sharma
Expert 1785 points
Other Parts Discussed in Thread: WL1837

Hi,

I'm facing a critical issue in listening to advertisement packet from a BLE Sensor device to my WL1837 device. 

Due to lack of kernel support (Using old kernel ->2.6), I'm not able to connect to Wilink BLE device(Central) to BLE Sensor(Peripheral). Hence i'm receiving the data in advertisement itself, but since the data is very time critical, it needs to reach within 2-3 seconds to Central device, but it takes time approx 4-6 (even more sometimes.),

I'm running lescan command and then hcidump command to parse ADV packets and get the data, but both lescan and hcidump takes some times in receving and then parsing the ADV data. I'v tried to change Scanning interval and window that didn't help much.

Can anyone please suggest me a way out of this problem???

Any help would be well appreciated. 

Thanks

Brajesh