Structure representing the configuration for a Wi-Fi TX test.
This structure contains various parameters for configuring a Wi-Fi TX test, such as enabling the test, setting the power, rate, length, mode, and other related settings.
Public Attributes#
Enable/disable TX test mode.
TX power in dBm.
Transmit data rate.
TX packet length. Range: [24 - 1500] bytes in Burst mode and [24 - 260] bytes in Continuous mode.
TX test mode mode.
Channel number in 2.4 GHZ / 5 GHZ.
Rate flags.
Channel Bandwidth.
tx test mode aggr_enable
Reserved.
Number of packets.
Delay.
Public Attribute Documentation#
power#
uint16_t sl_wifi_transmitter_test_info_t::power
TX power in dBm.
Range : 2 - 18 dBm. Note
1. User can configure the maximum power level allowed for the given frequncey in the configured region by providing 127 as power level.
2. User should configure a minimum delay (approx. 10 milliseconds) before and after sl_wifi_transmit_test_start API to observe a stable output at requested dBm level.
rate#
uint32_t sl_wifi_transmitter_test_info_t::rate
Transmit data rate.
Data Rates#
Data rate(Mbps) | Value of rate |
|---|---|
1 | 0 |
2 | 2 |
5.5 | 4 |
11 | 6 |
6 | 139 |
9 | 143 |
12 | 138 |
18 | 142 |
24 | 137 |
36 | 141 |
48 | 136 |
54 | 140 |
MCS0 | 256 |
MCS1 | 257 |
MCS2 | 258 |
MCS3 | 259 |
MCS4 | 260 |
MCS5 | 261 |
MCS6 | 262 |
MCS7 | 263 |
length#
uint16_t sl_wifi_transmitter_test_info_t::length
TX packet length. Range: [24 - 1500] bytes in Burst mode and [24 - 260] bytes in Continuous mode.
mode#
uint16_t sl_wifi_transmitter_test_info_t::mode
TX test mode mode.
0 - Burst Mode.
1 - Continuous Mode.
2 - Continuous wave Mode (non modulation) in DC mode.
3 - Continuous wave Mode (non modulation) in single tone mode (center frequency -2.5 MHz).
4 - Continuous wave Mode (non modulation) in single tone mode (center frequency +5 MHz). Burst mode: DUT transmits a burst of packets with the given power, rate, length in the channel configured. The burst size will be determined by the number of packets and if its zero, then DUT keeps transmitting till a sl_wifi_transmit_test_stop API is called.
Continuous Mode: The DUT transmits a unmodulated waveform continuously
Continuous Wave Mode (Non-Modulation) in DC Mode: The DUT transmits a spectrum only at the center frequency of the channel. A basic signal with no modulation is that of a sine wave and is usually referred to as a continuous wave (CW) signal. A basic signal source produces sine waves. Ideally, the sine wave is perfect. In the frequency domain, it is viewed as a single line at some specified frequency.
Continuous Wave Mode (Non-Modulation) in single tone Mode (Center frequency -2.5 MHz): The DUT transmits a spectrum that is generated at -2.5MHz from the center frequency of the channel selected. Some amount of carrier leakage will be seen at Center Frequency. For example, for 2412 MHz, the output would be seen at 2409.5 MHz.
Continuous Wave Mode (Non-Modulation) in single tone Mode (Center frequency +5 MHz): The DUT transmits a spectrum that is generated at 5MHz from the center frequency of the channel selected. Some amount of carrier leakage will be seen at Center Frequency. For example, for 2412MHz, the output would be seen at 2417 MHz.
channel#
uint16_t sl_wifi_transmitter_test_info_t::channel
Channel number in 2.4 GHZ / 5 GHZ.
The following table maps the channel number to the actual radio frequency in the 2.4 GHz spectrum.#
Channel numbers (2.4GHz) | Center frequencies for 20 MHz channel width |
|---|---|
1 | 2412 |
2 | 2417 |
3 | 2422 |
4 | 2427 |
5 | 2432 |
6 | 2437 |
7 | 2442 |
8 | 2447 |
9 | 2452 |
10 | 2457 |
11 | 2462 |
12 | 2467 |
13 | 2472 |
Note
To start transmit test in 12,13 channels, configure set region parameters in sl_si91x_set_device_region
The following table maps the channel number to the actual radio frequency in the 5 GHz spectrum for 20MHz channel bandwidth. The channel numbers in 5 GHz range is from 36 to 165.#
Channel Numbers(5GHz) | Center frequencies for 20MHz channel width |
|---|---|
36 | 5180 |
40 | 5200 |
44 | 5220 |
48 | 5240 |
52 | 5260 |
56 | 5280 |
60 | 5300 |
64 | 5320 |
149 | 5745 |
153 | 5765 |
157 | 5785 |
161 | 5805 |
165 | 5825 |
rate_flags#
uint16_t sl_wifi_transmitter_test_info_t::rate_flags
Rate flags.
BIT(6) - Immediate Transfer, set this bit to transfer packets immediately ignoring energy/traffic in channel.