77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/* Base mac address example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "esp_log.h"
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#include "esp_system.h"
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#define TAG "BASE_MAC"
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#ifdef CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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/* This is an example to show getting base MAC address from other external storage (flash, EEPROM, etc). */
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static esp_err_t external_storage_mac_get(uint8_t *mac)
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{
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uint8_t external_storage_mac_addr[8] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 };
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if (mac == NULL) {
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ESP_LOGE(TAG, "The mac parameter is NULL");
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abort();
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}
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memcpy(mac, external_storage_mac_addr, 6);
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return ESP_OK;
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}
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#endif//CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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void app_main()
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{
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#if defined(CONFIG_BASE_MAC_STORED_EFUSE_BLK3) || defined(CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE)
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uint8_t mac_addr[8] = {0};
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esp_err_t ret = ESP_OK;
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#ifdef CONFIG_BASE_MAC_STORED_EFUSE_BLK3
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/* Get base MAC address from BLK3 of EFUSE */
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ret = esp_efuse_mac_get_custom(mac_addr);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Get base MAC address from BLK3 of EFUSE error (%s)", esp_err_to_name(ret));
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/* If get custom base MAC address error, the application developer can decide what to do:
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* abort or use the default base MAC address which is stored in BLK0 of EFUSE by doing
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* nothing.
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*/
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#ifdef CONFIG_BASE_MAC_STORED_EFUSE_BLK3_ERROR_ABORT
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abort();
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#else
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ESP_LOGI(TAG, "Use base MAC address which is stored in BLK0 of EFUSE");
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#endif//CONFIG_BASE_MAC_STORED_EFUSE_BLK3_ERROR_ABORT
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}
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else {
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esp_base_mac_addr_set(mac_addr);
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ESP_LOGI(TAG, "Use base MAC address which is stored in BLK3 of EFUSE");
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}
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#endif//CONFIG_BASE_MAC_STORED_EFUSE_BLK3
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#ifdef CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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/* the application developer can get base MAC address which is stored in other external
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* storage (flash, EEPROM, etc) by calling some functions here.
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*/
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ret = external_storage_mac_get(mac_addr);
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if (ret == ESP_OK) {
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esp_base_mac_addr_set(mac_addr);
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ESP_LOGI(TAG, "Use base MAC address which is stored in other external storage(flash, EEPROM, etc)");
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}
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else {
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ESP_LOGI(TAG, "Use base MAC address which is stored in BLK0 of EFUSE (%s)", esp_err_to_name(ret));
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}
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#endif//CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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#else
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ESP_LOGI(TAG, "Use base MAC address which is stored in BLK0 of EFUSE");
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#endif//CONFIG_BASE_MAC_STORED_EFUSE_BLK3 || CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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}
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