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Low Power RF & Wireless Connectivity
WLAN Applications Forum
WL1271 not transmitting in 11n data rates
we are using Pandaboard ES Rev B1 (OMAP4460) with linux-3.1.10 and firmware wl1271(Rev 126.96.36.199.74), facing some issues with Tiwi-BLE chipset. It is connected to an AP with no security. AP has 11n support( 11n 2x2).
we are getting less throughput 14-15 Mbps in 11n mode. In Linux kernel Driver is configuration CONFIGWL12XX_HT=y is set, even iw is not showing 11n data rate.
when we type the "iw wlan0 link" command showing data rate as 18 Mbps. If the throughput is 15Mbps the actual data rate should have been around 36Mbps or more, if its working in 11g data rate right ?
We had done the calibration also to check if calibration is an issue. We used the version 0.72 for calibration. Followed the method in the link from linux wireless http://linuxwireless.org/en/users/Drivers/wl12xx/calibrator
are we missing any configuration in the driver/kernel
Linux Version: linux-3.1.10
iw verison : 3.3
wl1271 firmware (Rev 188.8.131.52.74)
After upgrading the kernel to 3.4.7 we are getting 11n rate in station mode.
Thanks for the update that is interesting. just to make clear, you are using the open source driver which is part of the kernel and for that reason upgrading the kernel release helped. we are using Compat wireless in SDK releases (we generate the Compat wireless from our R&D releases) so the WLAN works regardless of the kernel release.
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