diff --git a/examples/ethernet/README.md b/examples/ethernet/README.md index d2b98cab5e..c12fe4ca16 100644 --- a/examples/ethernet/README.md +++ b/examples/ethernet/README.md @@ -26,9 +26,9 @@ See the [README.md](../README.md) file in the upper level [examples](../) direct * PHY chip has a reset pin, if want to do a hardware reset during initialization, then you have to connect it with one GPIO on ESP32. See more information from [here](#configure-the-project). The default GPIO used for resetting PHY chip is GPIO5. -### Using DM9051 +### Using SPI ethernet modules -* DM9051 Ethernet module consumes one SPI interface plus an interrupt and reset GPIO. By default they're connected as follows: +* SPI Ethernet modules (DM9051, W5500, ...) typically consume one SPI interface plus an interrupt and reset GPIO. By default they're connected as follows: | GPIO | DM9051 | | ------ | ----------- | @@ -39,6 +39,9 @@ See the [README.md](../README.md) file in the upper level [examples](../) direct | GPIO4 | Interrupt | | GPIO5 | Reset | +Please consult Espressif Technical reference manual for assigning any other pins, especially when choosing from system configuration menu for the ethernet examples, +some pins cannot be used. + ## Common Configurations 1. In the `Example Configuration` menu: diff --git a/examples/ethernet/basic/main/Kconfig.projbuild b/examples/ethernet/basic/main/Kconfig.projbuild index 7a974d51ba..ead8588090 100644 --- a/examples/ethernet/basic/main/Kconfig.projbuild +++ b/examples/ethernet/basic/main/Kconfig.projbuild @@ -101,49 +101,68 @@ menu "Example Configuration" config EXAMPLE_ETH_SPI_SCLK_GPIO int "SPI SCLK GPIO number" - range 0 33 - default 20 + range 0 34 if IDF_TARGET_ESP32 + range 0 46 if IDF_TARGET_ESP32S2 + range 0 19 if IDF_TARGET_ESP32C3 + default 18 if IDF_TARGET_ESP32 + default 20 if IDF_TARGET_ESP32S2 + default 6 if IDF_TARGET_ESP32C3 help Set the GPIO number used by SPI SCLK. config EXAMPLE_ETH_SPI_MOSI_GPIO int "SPI MOSI GPIO number" - range 0 33 - default 19 + range 0 34 if IDF_TARGET_ESP32 + range 0 46 if IDF_TARGET_ESP32S2 + range 0 19 if IDF_TARGET_ESP32C3 + default 23 if IDF_TARGET_ESP32 + default 19 if IDF_TARGET_ESP32S2 + default 7 if IDF_TARGET_ESP32C3 help Set the GPIO number used by SPI MOSI. config EXAMPLE_ETH_SPI_MISO_GPIO int "SPI MISO GPIO number" - range 0 33 - default 18 + range 0 34 if IDF_TARGET_ESP32 + range 0 46 if IDF_TARGET_ESP32S2 + range 0 19 if IDF_TARGET_ESP32C3 + default 19 if IDF_TARGET_ESP32 + default 18 if IDF_TARGET_ESP32S2 + default 2 if IDF_TARGET_ESP32C3 help Set the GPIO number used by SPI MISO. config EXAMPLE_ETH_SPI_CS_GPIO int "SPI CS GPIO number" - range 0 33 - default 21 + range 0 34 if IDF_TARGET_ESP32 + range 0 46 if IDF_TARGET_ESP32S2 + range 0 19 if IDF_TARGET_ESP32C3 + default 5 if IDF_TARGET_ESP32 + default 21 if IDF_TARGET_ESP32S2 + default 10 if IDF_TARGET_ESP32C3 help Set the GPIO number used by SPI CS. config EXAMPLE_ETH_SPI_CLOCK_MHZ int "SPI clock speed (MHz)" range 5 80 - default 36 + default 12 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C3 + default 36 if IDF_TARGET_ESP32S2 help Set the clock speed (MHz) of SPI interface. config EXAMPLE_ETH_SPI_INT_GPIO int "Interrupt GPIO number" - default 4 + default 17 if IDF_TARGET_ESP32 + default 4 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32C3 help Set the GPIO number used by the SPI Ethernet module interrupt line. endif # EXAMPLE_USE_SPI_ETHERNET config EXAMPLE_ETH_PHY_RST_GPIO int "PHY Reset GPIO number" - default 5 + default 16 if IDF_TARGET_ESP32 + default 5 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32C3 help Set the GPIO number used to reset PHY chip. Set to -1 to disable PHY chip hardware reset.