3 Replies Latest reply on Apr 11, 2017 7:10 AM by mifo

    To slow BCM43143 on SDIO on Linux. Speed less than 1 MB/sec

    AndrewPushkin

      Hi. I use BCM43143 on SDIO on Linux 4.8.17 with TI Beaglebone like hardware.

      Have 2 issue:

      1. BCM43143 does not see all WiFi networks. For example it does not see (not scanned) soft AP from my Android phone. I try different countries (crda), and its looks like not country issue.

      2. Speed is to slow. I test with iperf3 and wget and WiFi speed is less then 1 MB/sec with good signal:

      # iwconfig wlan0
      wlan0     IEEE 802.11  ESSID:"Promwad Test"  
                Mode:Managed  Frequency:2.412 GHz  Access Point: 04:18:D6:35:4E:C8   
                Bit Rate=72.2 Mb/s   Tx-Power=31 dBm   
                Retry short limit:7   RTS thr:off   Fragment thr:off
                Encryption key:off
                Power Management:on
                Link Quality=64/70  Signal level=-46 dBm  
                Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
                Tx excessive retries:0  Invalid misc:0   Missed beacon:0

       

      # iperf3 -c 10.54.4.113
      Connecting to host 10.54.4.113, port 5201
      [  4] local 10.54.11.203 port 36276 connected to 10.54.4.113 port 5201
      [ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
      [  4]   0.00-1.00   sec   645 KBytes  5.28 Mbits/sec    0   56.6 KBytes       
      [  4]   1.00-2.00   sec   560 KBytes  4.59 Mbits/sec    0   56.6 KBytes       
      [  4]   2.00-3.00   sec   576 KBytes  4.71 Mbits/sec    0   56.6 KBytes       
      [  4]   3.00-4.00   sec   568 KBytes  4.66 Mbits/sec    0   56.6 KBytes       
      [  4]   4.00-5.00   sec   578 KBytes  4.74 Mbits/sec    0   56.6 KBytes       
      ^C[  4]   5.00-5.63   sec   351 KBytes  4.55 Mbits/sec    0   56.6 KByte

       

      Note: driver load brcmfmac43143-sdio.txt. Could you please provide sample of this driver, may be my brcmfmac43143-sdio.txt is bad.