Chapter 2. API Reference
Default value:
• Yes (enabled)
CONFIG_ESP32_WIFI_TX_BA_WIN
WiFi AMPDU TX BA window size
Found in: Component config > Wi-Fi > CONFIG_ESP32_WIFI_AMPDU_TX_ENABLED
Set the size of WiFi Block Ack TX window. Generally a bigger value means higher throughput but
more memory. Most of time we should NOT change the default value unless special reason, e.g. test
the maximum UDP TX throughput with iperf etc. For iperf test in shieldbox, the recommended value
is 9~12.
Range:
• from 2 to 32
Default value:
• 6
CONFIG_ESP32_WIFI_AMPDU_RX_ENABLED
WiFi AMPDU RX
Found in: Component config > Wi-Fi
Select this option to enable AMPDU RX feature
Default value:
• Yes (enabled)
CONFIG_ESP32_WIFI_RX_BA_WIN
WiFi AMPDU RX BA window size
Found in: Component config > Wi-Fi > CONFIG_ESP32_WIFI_AMPDU_RX_ENABLED
Set the size of WiFi Block Ack RX window. Generally a bigger value means higher throughput and
better compatibility but more memory. Most of time we should NOT change the default value unless
special reason, e.g. test the maximum UDP RX throughput with iperf etc. For iperf test in shieldbox,
the recommended value is 9~12. If PSRAM is used and WiFi memory is prefered to allocat in PSRAM
first, the default and minimum value should be 16 to achieve better throughput and compatibility with
both stations and APs.
Range:
• from 2 to 32
Default value:
• 6 if CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP && CON-
FIG_ESP32_WIFI_AMPDU_RX_ENABLED
• 16 if CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP && CON-
FIG_ESP32_WIFI_AMPDU_RX_ENABLED
CONFIG_ESP32_WIFI_AMSDU_TX_ENABLED
WiFi AMSDU TX
Found in: Component config > Wi-Fi
Select this option to enable AMSDU TX feature
Default value:
• No (disabled) if ESP32_SPIRAM_SUPPORT || CONFIG_ESP32S2_SPIRAM_SUPPORT ||
ESP32S3_SPIRAM_SUPPORT
Espressif Systems 1131
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