app: minor update

Author: redchenjs

CMakeLists.txt

@@ -2,4 +2,4 @@ cmake_minimum_required(VERSION 3.5)
 
 set(SUPPORTED_TARGETS esp32)
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(bluetooth_hci_uart_controller)
+project(uart_hci_bluetooth_module)

README.md

@@ -1,13 +1,14 @@
-Bluetooth HCI UART Controller
-=============================
+UART HCI Bluetooth Module
+=========================
 
-BTDM controller inside the ESP32 chip, use UART(H4) as HCI IO.
+There is a Bluetooth 4.2 dual-mode controller inside the ESP32 chip, which can use UART(H4) as HCI IO.
 
 ## Pinmap
 
-| UART | TX | RX | CTS | RTS |
-| :--: | -: | -: | --: | --: |
-|  Pin |  5 | 18 |  19 |  23 |
+| HOST  | RX | TX | RTS | CTS |
+| :---- | -: | -: | --: | --: |
+| ESP32 | TX | RX | CTS | RTS |
+| Pin   |  5 | 18 |  19 |  23 |
 
 * HCI UART protocol: `H4`
 * HCI UART baudrate: `921600 bps`
@@ -17,7 +18,7 @@ BTDM controller inside the ESP32 chip, use UART(H4) as HCI IO.
 ### Obtain the Source
 
 ```
-git clone --recursive https://github.com/redchenjs/bluetooth_hci_uart_controller_esp32.git
+git clone --recursive https://github.com/redchenjs/uart_hci_bluetooth_module_esp32.git
 ```
 
 ### Update an existing repository

main/app_main.c

@@ -14,8 +14,7 @@
 #include "soc/uhci_periph.h"
 #include "driver/periph_ctrl.h"
 
-#define NVS_TAG "nvs"
-#define BT_TAG  "bt"
+#define TAG "uart_hci"
 
 int app_main(void)
 {
@@ -26,18 +25,16 @@ int app_main(void)
     }
     ESP_ERROR_CHECK(ret);
 
-    ESP_LOGI(NVS_TAG, "initialized.");
-
     periph_module_enable(PERIPH_UART1_MODULE);
     periph_module_enable(PERIPH_UHCI0_MODULE);
 
-    uart_set_pin(UART_NUM_1, 5, 18, 19, 23);
+    ESP_ERROR_CHECK(uart_set_pin(UART_NUM_1, 5, 18, 19, 23));
 
     esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
     ESP_ERROR_CHECK(esp_bt_controller_init(&bt_cfg));
     ESP_ERROR_CHECK(esp_bt_controller_enable(ESP_BT_MODE_BTDM));
 
-    ESP_LOGI(BT_TAG, "initialized, tx: 5, rx: 18, cts: 23, rts: 19");
+    ESP_LOGI(TAG, "initialized, tx: 5, rx: 18, cts: 23, rts: 19");
 
     return 0;
 }