CC3235MODSF: Wi-Fi settings

Goran Djuknic

Part Number: CC3235MODSF

For CC3235MODSF, how do I assign a Wi-Fi channel in the 5 GHz band that I want to communicate on? E.g. I want to communicate on channel #161. Second, how do I choose transmit power level at that channels? Say, I want to transmit at 0 dBm.

over 5 years ago

0 Kobi Leibovitch over 5 years ago

TI__Guru 63006 points

You should use the sl_WlanSet command.

For a station you can define the scanned channels:

- SL_WLAN_GENERAL_PARAM_OPT_SCAN_PARAMS:
\code
SlWlanScanParamCommand_t ScanParamConfig;
_u16 Option = SL_WLAN_GENERAL_PARAM_OPT_SCAN_PARAMS;
_u16 OptionLen = sizeof(ScanParamConfig);
// 2.4G channels bits order: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 

ScanParamConfig.RssiThreshold = -70;
ScanParamConfig.ChannelsMask = 0x1FFF;
sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, &Option, &OptionLen, (_u8 *)&ScanParamConfig);
\endcode
<br>

- SL_WLAN_GENERAL_PARAM_OPT_SCAN_PARAMS_5G:
\code
SlWlanScanParam5GCommand_t ScanParamConfig5G;
_u16 Option = SL_WLAN_GENERAL_PARAM_OPT_SCAN_PARAMS_5G;
_u16 OptionLen = sizeof(SlWlanScanParam5GCommand_t);
// 5.0G channels bits order: 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132,
// 136, 140, 144, 149, 153, 157, 161, 165, 169, 184, 188, 192, 196 

ScanParamConfig5G.ChannelsMask = 0x0000000F; // Select ChannelsMask for channels 36, 40, 44, 48 
ScanParamConfig5G.RssiThreshold = -70;
sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, Option, OptionLen, (_u8 *)&ScanParamConfig5G);
\endcode
<br>

For an AP you can define the operational channel:

    - SL_WLAN_AP_OPT_CHANNEL:
    \code 
        _u8  val = channel;
        sl_WlanSet(SL_WLAN_CFG_AP_ID, SL_WLAN_AP_OPT_CHANNEL, 1, (_u8 *)&val);
    \endcode
    <br>

The TX power can be controlled with:

   - SL_WLAN_GENERAL_PARAM_OPT_STA_TX_POWER:
    \code
        _u8  stapower=(_u8)power;
        sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, SL_WLAN_GENERAL_PARAM_OPT_STA_TX_POWER,1,(_u8 *)&stapower);
    \endcode
    <br>

   - SL_WLAN_GENERAL_PARAM_OPT_AP_TX_POWER:
    \code
        _u8  appower=(_u8)power;
        sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, SL_WLAN_GENERAL_PARAM_OPT_AP_TX_POWER,1,(_u8 *)&appower);
    \endcode
    <br>

Note that both parameter are dependent on the regulatory domain setting.

More info can be found in the programmer's guide (www.ti.com/.../swru455l.pdf) or in the SDK doc folder (<SDK-ROOT>/docs/wifi_host_driver_api/html/group___wlan.html).

Br,

Kobi

0 Goran Djuknic over 5 years ago in reply to Kobi Leibovitch

Prodigy 70 points

Thank you, Kobi, I will try this out.

Goran

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CC3235MODSF: Wi-Fi settings