Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A13 => Topic started by: SlyCom on October 24, 2013, 06:29:45 PM

Title: WiFI connection
Post by: SlyCom on October 24, 2013, 06:29:45 PM
I have a problem with my connection. Very often the speed just drops and later the connection stops. I have reboot the board but it doesn't resolve the problem. Any one having similar problem?

My project seems to be stuck as I can use this board :(
Title: Re: WiFI connection
Post by: davidefa on October 30, 2013, 10:31:47 AM
I always had problems with olinuxino wifi ( I have a board from december ). The connection from the board to my pc ( which I use for development ) dropped every few minutes, which was wery annoying ( and a waste of time ).
I few days ago a decided to pinpoint the problem ( yes after several months of use ) and found that the problem was in my wireless network. Now everithing works as it should.
Another 'problem' is the 'dropped frames counter', not shure if it is a real problem, as I can download reliably large files ( hundreds of megabytes ) at maximum speed.
Title: Re: WiFI connection
Post by: Lurch on October 30, 2013, 12:27:21 PM
The dropping may be fixed soon.  This was in the A10S forum yesterday:
QuoteTL8188 works reliable as the drivers in linux-sunxi were unreliable, the connection was dropping with some routers. AXP152 GPIO support in Linux-sunxi is broken so patches are need to may compile it
USB-Ethernet-AX88772B had some weird issue with XFCE4 which now is fixed in 3.4
sun5i_defconfig do not produce bootable image for A10S
Wifi is about to be fixed now in A13 and A20 images too as suffer the same problem
Title: Re: WiFI connection
Post by: SlyCom on October 30, 2013, 01:53:22 PM
I also noticed that after changing my wireless network environment the board is more stable but still sometimes it hangs itself. I'm not sure if it is related to the network but I'm going to consider built external watchdog. I read somewhere that the watchdog in A13 is max 20sec so it's useless as the Linux very often starts up more than in 20 sec.
Title: Re: WiFI connection
Post by: olimex on October 30, 2013, 03:37:45 PM
indeed default Linux-Sunxi WIFI driver suck big time, and works reliable only with few wireless routers - we spent lot of time until we figure this out, as our wifi router was working fine, but we read many people report problems so we found such router which drops and work unreliable with the WIFI

A10S latest image use Allwinner's WIFI driver and works faster and reliable, now we work to fix the WIFI on A20 image and A13 image will follow

hopefully the new images will be ready by Friday
Title: Re: WiFI connection
Post by: davidefa on October 30, 2013, 04:21:34 PM
Thanks that's great. Could you explain the 'patches' to apply to the driver?
Title: Re: WiFI connection
Post by: SlyCom on October 30, 2013, 04:26:33 PM
Great news!
You mentioned about images. Will be debian image fixed as well.
Title: Re: WiFI connection
Post by: SlyCom on November 04, 2013, 11:27:04 AM
Hi,

Any news about WiFi drivers for A13???
Title: Re: WiFI connection
Post by: SlyCom on November 04, 2013, 05:11:18 PM
I have three A13 WiFi boards and only one works without hanging. I tested on the same Ubuntu image. I also bought the WiFi USB dongle ("REALTEK RTL8188CUS CHIPSET 802.11N") on eBay. I can confirm that using this dongle boards works without any issues.
Title: Re: WiFI connection
Post by: davidefa on November 05, 2013, 05:17:13 PM
Please add a photo of the working dongle ( I don't know if a link to the seller is apropriate ). It may be usefull for those having wifi issues.
Title: Re: WiFI connection
Post by: kizzoalfa on December 20, 2013, 10:50:23 AM
Quote from: olimex on October 30, 2013, 03:37:45 PM
indeed default Linux-Sunxi WIFI driver suck big time, and works reliable only with few wireless routers - we spent lot of time until we figure this out, as our wifi router was working fine, but we read many people report problems so we found such router which drops and work unreliable with the WIFI

A10S latest image use Allwinner's WIFI driver and works faster and reliable, now we work to fix the WIFI on A20 image and A13 image will follow

hopefully the new images will be ready by Friday

Hi I have 5 Android based boards with 7" LCD and have continous WIFI issues.

Will you release also the prebuilt image for Android as well?

I use this build currently: sun5i_android_a13-evb_800x480_LCD_EN_SD.img

Thanks,

Zoltan
Title: Re: WiFI connection
Post by: Audrys on December 20, 2013, 01:29:58 PM
well,
one needs to admit that wifi on this card does not work at all.
absolute dung that should never been manufactured or sold.
Title: Re: WiFI connection
Post by: geekything on December 22, 2013, 11:22:41 PM
Having the same issues with Wifi...any news on a better driver implementation?

Thx.

-m
Title: Re: WiFI connection
Post by: JohnS on December 22, 2013, 11:55:22 PM
I think it would be on the linux-sunxi mailing list.

John