cant get IP address from esp32wrover by using clock GPIO0 ?

[vivekannamalai]

I m doing my custom poe board esp32wrover with lan8720a. And i using external clock 50Mhz which is enable by GPIO2.GPIO 0 as a clock.my problem is not getting ip address but lan ic is enabled. Right now m not using any inverter ic for phase shift180. Crystal output is directly connected to Gpio0.is inverter ic is mandatory? or ll do program itself to invert phase shift? Please guide me ..For past 20days have been fighting with POE..need your guidance..thank you

[vivekannamalai]

Anyone is there?

[PeterR]

The EVB schematics are a good starting point. I don't see an invertor there.
You need to post some code and/or provide a common reference point e.g. the worked example.

but lan ic is enabled.

What do you mean? How do you know? What's your ethernet_initialisation() code & configuration settings?

Every time I have had a clock problem (or wrong PHY address) I get an error report stating that esp gave up trying to intialise the PHY.

If you get past esp_eth_init() then try adding:

Code: Select all

  ESP_ERROR_CHECK(esp_event_handler_register(ESP_EVENT_ANY_BASE, ESP_EVENT_ANY_ID, ethernet_event_handler, NULL));

& look for events if(base==ETH_EVENT) and dump.

[vivekannamalai]

The EVB schematics are a good starting point. I don't see an invertor there.
You need to post some code and/or provide a common reference point e.g. the worked example.

Code: Select all

// Copyright (c) 2017 Olimex Ltd.
//
// GNU GENERAL PUBLIC LICENSE
//    Version 3, 29 June 2007
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include <stdio.h>
#include <string.h>

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

#include "esp_system.h"
#include "esp_err.h"
#include "esp_event_loop.h"
#include "esp_event.h"
#include "esp_attr.h"
#include "esp_log.h"
#include "esp_eth.h"

#include "rom/ets_sys.h"
#include "rom/gpio.h"

#include "soc/dport_reg.h"
#include "soc/io_mux_reg.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/gpio_reg.h"
#include "soc/gpio_sig_map.h"

#include "tcpip_adapter.h"
#include "nvs_flash.h"
#include "driver/gpio.h"


#include "eth_phy/phy_lan8720.h"
#include "olimex_lan8710.h"
#include "olimex_ethernet.h"

#define PIN_SMI_MDC   23
#define PIN_SMI_MDIO  18
#define PIN_PHY_POWER 2
static void eth_gpio_config_rmii(void)
{
    // RMII data pins are fixed:
    // TXD0 = GPIO19
    // TXD1 = GPIO22
    // TX_EN = GPIO21
    // RXD0 = GPIO25
    // RXD1 = GPIO26
    // CLK == GPIO0
    phy_rmii_configure_data_interface_pins();
    // MDC is GPIO 23, MDIO is GPIO 18
    phy_rmii_smi_configure_pins(PIN_SMI_MDC, PIN_SMI_MDIO);
}
static void phy_device_power_enable_via_gpio(bool enable)
{
	if (!enable)
		phy_lan8720_default_ethernet_config.phy_power_enable(false);

	gpio_pad_select_gpio(PIN_PHY_POWER);
	gpio_set_direction(PIN_PHY_POWER,GPIO_MODE_OUTPUT);
	gpio_set_level(PIN_PHY_POWER, (int)enable);

	// Allow the power up/down to take effect, min 300us
	vTaskDelay(1);

	if (enable)
		phy_lan8720_default_ethernet_config.phy_power_enable(true);
}
void eth_task(void *pvParameter)
{
    tcpip_adapter_ip_info_t ip;
    memset(&ip, 0, sizeof(tcpip_adapter_ip_info_t));
    vTaskDelay(2000 / portTICK_PERIOD_MS);

    while (1) {

        vTaskDelay(2000 / portTICK_PERIOD_MS);

        if (tcpip_adapter_get_ip_info(ESP_IF_ETH, &ip) == 0) {
            ESP_LOGI(ETHERNET_TAG, "~~~~~~~~~~~");
            ESP_LOGI(ETHERNET_TAG, "ETHIP:"IPSTR, IP2STR(&ip.ip));
            ESP_LOGI(ETHERNET_TAG, "ETHPMASK:"IPSTR, IP2STR(&ip.netmask));
            ESP_LOGI(ETHERNET_TAG, "ETHPGW:"IPSTR, IP2STR(&ip.gw));
            ESP_LOGI(ETHERNET_TAG, "~~~~~~~~~~~");
        }
    }
}

uint8_t initEthernet()
{
    eth_config_t config = phy_lan8710_default_ethernet_config;
    esp_err_t ret = ESP_OK;

    /* Initialize adapter */
    tcpip_adapter_init();
    esp_event_loop_init(NULL, NULL);

    /* Set the PHY address in the example configuration */
    config.phy_addr = 0;
    config.gpio_config = eth_gpio_config_rmii;
    config.tcpip_input = tcpip_adapter_eth_input;
	config.phy_power_enable = phy_device_power_enable_via_gpio;
    config.clock_mode = ETH_CLOCK_GPIO0_IN;
	//config.clock_mode = ETH_CLOCK_GPIO17_OUT;
	printf("Initialize LAN1...");
    /* Initialize ethernet */
    ret = esp_eth_init(&config);
    if(ret != ESP_OK)
        return ret;

    /* Enable ethernet */
    return esp_eth_enable();

}

uint8_t testEthernet()
{
    tcpip_adapter_ip_info_t ip;
	//tcpip_adapter_ip6_info_t ip1;
	//tcpip_adapter_dns_info_t ip2;
    uint8_t timeout = 0;

    /* Clear ip info */
    memset(&ip, 0, sizeof(tcpip_adapter_ip_info_t));



    /* Initialize ethernet */
    printf("Initialize LAN...");
    fflush(stdout);
    if(initEthernet() != ESP_OK) {
        printf("[ \033[31mERROR\033[0m ]\n");
        esp_eth_disable();
        return ESP_FAIL;
    }
    printf("[ \033[32mDONE\033[0m ]\n");

    /* Wait for IP */
    printf("Receiving address...");
    fflush(stdout);
    while(timeout++ < 10) {
        if (tcpip_adapter_get_ip_info(ESP_IF_ETH, &ip) == 0)
            if(ip.gw.addr == 0x0100a8c0)
                break;
        vTaskDelay(1000 / portTICK_PERIOD_MS);
    }
   // printf("%d",ip.gw.addr);
	//eth_task();
	if(ip.gw.addr == 0x0100a8c0)
	{
        printf("[ \033[32mDONE\033[0m ]\n");
	    //printf("%d",ip.gw.addr);
	}	
    else
        printf("[ \033[31mERROR\033[0m ]\n");

	// SPP +
	int x = ip.ip.addr, A[4];
	A[0] = (x >>  0) & 0xFF;
	A[1] = (x >>  8) & 0xFF;
	A[2] = (x >> 16) & 0xFF;
	A[3] = (x >> 24) & 0xFF;
	printf ("IP address: %d.%d.%d.%d\n", A[0], A[1], A[2], A[3]);

	//esp_eth_disable();	// no disable so you can ping the IP address (SPP)
	// SPP -

    return ESP_OK;
}

but lan ic is enabled.

What do you mean? How do you know? What's your ethernet_initialisation() code & configuration settings?

LAN is intialised

Every time I have had a clock problem (or wrong PHY address) I get an error report stating that esp gave up trying to intialise the PHY.

If you get past esp_eth_init() then try adding:

Code: Select all

  ESP_ERROR_CHECK(esp_event_handler_register(ESP_EVENT_ANY_BASE, ESP_EVENT_ANY_ID, ethernet_event_handler, NULL));

& look for events if(base==ETH_EVENT) and dump.

[PeterR]

Its better to post a link if you are using stock code, saves me checking if you have changed anything. Is this stock code?

You also should post observations not conclusions.
For example, you say that the LAN is initialised but how do you know?

Sending your boot output messages would help.
Even better if you add the event handler I suggested. I did not give you all the code but if you search examples for the function you will find lots.