63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
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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 <stdio.h>
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#include <string.h>
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#include "nvs_flash.h"
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#include "esp_bt.h"
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#include "driver/uart.h"
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#include "esp_log.h"
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static const char *tag = "CONTROLLER_UART_HCI";
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static void uart_gpio_reset(void)
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{
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#if CONFIG_BT_HCI_UART_NO == 1
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periph_module_enable(PERIPH_UART1_MODULE);
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#elif CONFIG_BT_HCI_UART_NO == 2
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periph_module_enable(PERIPH_UART2_MODULE);
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#endif
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periph_module_enable(PERIPH_UHCI0_MODULE);
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#ifdef CONFIG_BT_HCI_UART_NO
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ESP_LOGI(tag, "HCI UART%d Pin select: TX 5, RX, 18, CTS 23, RTS 19", CONFIG_BT_HCI_UART_NO);
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uart_set_pin(CONFIG_BT_HCI_UART_NO, 5, 18, 19, 23);
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#endif
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}
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void app_main()
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{
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esp_err_t ret;
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/* Initialize NVS — it is used to store PHY calibration data */
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ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK( ret );
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/* As the UART1/2 pin conflict with flash pin, so do matrix of the signal and pin */
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uart_gpio_reset();
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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ret = esp_bt_controller_init(&bt_cfg);
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if (ret != ESP_OK) {
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ESP_LOGE(tag, "Bluetooth Controller initialize failed, ret %d", ret);
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return;
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}
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ret = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
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if (ret != ESP_OK) {
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ESP_LOGE(tag, "Bluetooth Controller initialize failed, ret %d", ret);
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return;
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}
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}
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