CYW954907AEVAL1F 802.11 40Mhz channel

[jeremyh]

Hi,

Using the console app running on the CYW954907AEVAL1F evaluation kit, I'm trying to configure an AP on channel 38 (5Ghz band) with a 40Mhz bandwidth using the following command :

start_ap WW101WPA open DUMMY_KEY 38 40 no_wps 192.168.2.1 255.255.255.0

Everything seems to be correcty setup :

> status
WICED Version  : Wiced_006.006.001.0001
Platform       : CYW954907AEVAL1F
Driver & FW    : 7.15.168.149 (21d266a) FWID 01-d4dbc762
CLM            : API: 12.2 Data: 9.10.74 Compiler: 1.31.3 ClmImport: 1.36.3 Creation: 2020-07-20 00:01:06
MAC Address    : D4:53:83:C2:3E:78

STA Interface  : Down
AP Interface
   MAC Address : D6:53:83:C2:3E:78
   chanspec    : 0xd826
   SSID        : WW101WPA
   Channel     : 38
   Bandwidth   : 40
   IP Addr     : 192.168.2.1
   Gateway     : 0.0.0.0
   Netmask     : 255.255.255.0
P2P Interface  : Down
Ethernet Interface  : Down
>

 But using a laptop with wifi 802.11ac/n, I see the AP is on channel 36 !

Any idea ? I've tried following commands without any success too :

stop_ap
set_preferred_association_band 1
wifi_powersave 0
wl down
sleep 100
wl nmode 1
wl mimo_bw_cap 1
sleep 100
wl up
sleep 100
start_ap WW101WPA open DUMMY_KEY 38 40 no_wps 192.168.2.1 255.255.255.0

For info :

> wl chan_info
Channel 1       B Band
Channel 2       B Band
Channel 3       B Band
Channel 4       B Band
Channel 5       B Band
Channel 6       B Band
Channel 7       B Band
Channel 8       B Band
Channel 9       B Band
Channel 10      B Band
Channel 11      B Band
Channel 36      A Band
Channel 40      A Band
Channel 44      A Band
Channel 48      A Band
Channel 52      A Band, RADAR Sensitive, Passive
Channel 56      A Band, RADAR Sensitive, Passive
Channel 60      A Band, RADAR Sensitive, Passive
Channel 64      A Band, RADAR Sensitive, Passive
Channel 100     A Band, RADAR Sensitive, Passive
Channel 104     A Band, RADAR Sensitive, Passive
Channel 108     A Band, RADAR Sensitive, Passive
Channel 112     A Band, RADAR Sensitive, Passive
Channel 116     A Band, RADAR Sensitive, Passive
Channel 120     A Band, RADAR Sensitive, Passive
Channel 124     A Band, RADAR Sensitive, Passive
Channel 128     A Band, RADAR Sensitive, Passive
Channel 132     A Band, RADAR Sensitive, Passive
Channel 136     A Band, RADAR Sensitive, Passive
Channel 140     A Band, RADAR Sensitive, Passive
Channel 144     A Band, RADAR Sensitive, Passive
Channel 149     A Band
Channel 153     A Band
Channel 157     A Band
Channel 161     A Band
Channel 165     A Band
>

[Aditi_B]

Hi,

Can you check wl chanspecs command and provide the output?

Thanks

[jeremyh]

Yes for sure :

> wl chanspecs
1 (0x1001)
2 (0x1002)
3 (0x1003)
4 (0x1004)
5 (0x1005)
6 (0x1006)
7 (0x1007)
8 (0x1008)
9 (0x1009)
10 (0x100a)
11 (0x100b)
5u (0x1903)
6u (0x1904)
7u (0x1905)
8u (0x1906)
9u (0x1907)
10u (0x1908)
11u (0x1909)
1l (0x1803)
2l (0x1804)
3l (0x1805)
4l (0x1806)
5l (0x1807)
6l (0x1808)
7l (0x1809)
36 (0xd024)
40 (0xd028)
44 (0xd02c)
48 (0xd030)
52 (0xd034)
56 (0xd038)
60 (0xd03c)
64 (0xd040)
100 (0xd064)
104 (0xd068)
108 (0xd06c)
112 (0xd070)
116 (0xd074)
120 (0xd078)
124 (0xd07c)
128 (0xd080)
132 (0xd084)
136 (0xd088)
140 (0xd08c)
144 (0xd090)
149 (0xd095)
153 (0xd099)
157 (0xd09d)
161 (0xd0a1)
165 (0xd0a5)
40u (0xd926)
48u (0xd92e)
56u (0xd936)
64u (0xd93e)
104u (0xd966)
112u (0xd96e)
120u (0xd976)
128u (0xd97e)
136u (0xd986)
144u (0xd98e)
153u (0xd997)
161u (0xd99f)
36l (0xd826)
44l (0xd82e)
52l (0xd836)
60l (0xd83e)
100l (0xd866)
108l (0xd86e)
116l (0xd876)
124l (0xd87e)
132l (0xd886)
140l (0xd88e)
149l (0xd897)
157l (0xd89f)
36/80 (0xe02a)
52/80 (0xe03a)
100/80 (0xe06a)
116/80 (0xe07a)
132/80 (0xe08a)
149/80 (0xe09b)
40/80 (0xe12a)
56/80 (0xe13a)
104/80 (0xe16a)
120/80 (0xe17a)
136/80 (0xe18a)
153/80 (0xe19b)
44/80 (0xe22a)
60/80 (0xe23a)
108/80 (0xe26a)
124/80 (0xe27a)
140/80 (0xe28a)
157/80 (0xe29b)
48/80 (0xe32a)
64/80 (0xe33a)
112/80 (0xe36a)
128/80 (0xe37a)
144/80 (0xe38a)
161/80 (0xe39b)

[Aditi_B · Accepted solution]

Hi,

Thanks for the update. Please check "wl chanspec" command as well after initializing your device as AP on channel 38 with 40 MHz bandwidth. 

Thanks

Aditi