do you use the LAN8720 Modul , the LAN8720 EVB from MC or own circuit?I am using LAN8720, it always output the 50MHz RMII clock even though it is being reset, there is no clock enable/disable option via software programming.
Colman
then you must do by self:.. there is no clock enable/disable option via software programming.
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#define PIN_PHY_POWER 17
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void phy_device_power_enable(bool enable)
{
gpio_pad_select_gpio(PIN_PHY_POWER);
gpio_set_direction(PIN_PHY_POWER,GPIO_MODE_OUTPUT);
if(enable == true) {
gpio_set_level(PIN_PHY_POWER, 1);
ESP_LOGI(demo_tag, "phy_device_power_enable(TRUE)");
} else {
gpio_set_level(PIN_PHY_POWER, 0);
ESP_LOGI(demo_tag, "power_enable(FALSE)");
}
}
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void app_main()
{
esp_err_t ret = ESP_OK;
tcpip_adapter_init();
esp_event_loop_init(NULL, NULL);
eth_config_t config;
config.phy_addr = CONFIG_PHY_ID;
config.mac_mode = ETH_MODE_RMII;
config.gpio_config = eth_gpio_config_rmii;
config.tcpip_input = tcpip_adapter_eth_input;
//Only FULLDUPLEX mode support flow ctrl now!
config.flow_ctrl_enable = true;
config.phy_init = phy_device_init;
config.phy_check_init = phy_device_check_phy_init;
config.phy_check_link = phy_device_check_phy_link_status;
config.phy_get_speed_mode = phy_device_get_speed_mode;
config.phy_get_duplex_mode = phy_device_get_duplex_mode;
config.phy_get_partner_pause_enable = phy_device_get_partner_pause_enable;
/* your friend */
config.phy_power_enable = phy_device_power_enable;
ret = esp_eth_init(&config);
if(ret == ESP_OK) {
esp_eth_enable();
xTaskCreate(eth_task, "eth_task", 2048, NULL, (tskIDLE_PRIORITY + 2), NULL);
}
}
sry i do not know, how much pins you use in your project, i do not know your project, so perhabs you can tell about more,I know I can disconnect it by adding a switch controlled by a GPIO, but there is no more GPIO left.