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choice ESP32C2_UNIVERSAL_MAC_ADDRESSES
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bool "Number of universally administered (by IEEE) MAC address"
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default ESP32C2_UNIVERSAL_MAC_ADDRESSES_FOUR
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help
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Configure the number of universally administered (by IEEE) MAC addresses.
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During initialization, MAC addresses for each network interface are generated or derived from a
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single base MAC address.
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If the number of universal MAC addresses is four, all four interfaces (WiFi station, WiFi softap,
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Bluetooth and Ethernet) receive a universally administered MAC address. These are generated
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sequentially by adding 0, 1, 2 and 3 (respectively) to the final octet of the base MAC address.
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If the number of universal MAC addresses is two, only two interfaces (WiFi station and Bluetooth)
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receive a universally administered MAC address. These are generated sequentially by adding 0
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and 1 (respectively) to the base MAC address. The remaining two interfaces (WiFi softap and Ethernet)
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receive local MAC addresses. These are derived from the universal WiFi station and Bluetooth MAC
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addresses, respectively.
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When using the default (Espressif-assigned) base MAC address, either setting can be used. When using
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a custom universal MAC address range, the correct setting will depend on the allocation of MAC
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addresses in this range (either 2 or 4 per device.)
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Note that ESP32-C2 has no integrated Ethernet MAC. Although it's possible to use the esp_read_mac()
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API to return a MAC for Ethernet, this can only be used with an external MAC peripheral.
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2022-01-17 21:32:56 -05:00
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config ESP32C2_UNIVERSAL_MAC_ADDRESSES_TWO
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bool "Two"
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select ESP_MAC_ADDR_UNIVERSE_WIFI_STA
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select ESP_MAC_ADDR_UNIVERSE_BT
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config ESP32C2_UNIVERSAL_MAC_ADDRESSES_FOUR
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bool "Four"
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select ESP_MAC_ADDR_UNIVERSE_WIFI_STA
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select ESP_MAC_ADDR_UNIVERSE_WIFI_AP
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select ESP_MAC_ADDR_UNIVERSE_BT
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select ESP_MAC_ADDR_UNIVERSE_ETH
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endchoice
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2022-01-17 21:32:56 -05:00
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config ESP32C2_UNIVERSAL_MAC_ADDRESSES
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# TODO: check ESP32-C2 mac address WIFI-4134
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int
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default 2 if ESP32C2_UNIVERSAL_MAC_ADDRESSES_TWO
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default 4 if ESP32C2_UNIVERSAL_MAC_ADDRESSES_FOUR
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