Good morning, I am working with two nRF52840 devices, running on a custom board. One acts as Central and Peripheral, the other as Peripheral only.
I am in the process of upgrading NCS from v2.6.0 to v2.7.0. I use Linux through WSL.
On v2.7.0, I have noticed that when the dual role device is disconnected from the Peripheral, it is taking longer to scan and connect to it compared to NCS v2.6.0 (1+ minute compared to ~20 seconds).
When I print scan results on the dual role device, I can see that it doesn't detect as many advertisement packets. On the other hand I am reliably able to scan for the Peripheral advertisement packets when scanning from another device.
The following are the scan parameters on my dual role device:
/* Scan interval unit multiplier used in Zephyr interface */ #define SCAN_INTERVAL_MULTIPLIER 0.625f /* Scan interval, in ms */ #define SCAN_INTERVAL 10000 /* Scan window, in ms */ #define SCAN_WINDOW 1050 /* Scan timeout, 180 seconds. Set value to 0 to disable */ #define SCAN_TIMEOUT 180000
When taking a look at the current measurements across the two builds, I can see that the NCS v2.6.0 build scan window is of the correct length, 1050 ms, as shown in the image below:
However, the scan window on the NCS v2.7.0 build is a magnitude shorter, which aligns with the behaviour I'm observing:
The scan interval of 10 seconds can be observed in both builds.
I'd appreciate some help with this issue.
