first commit

2018-5-5 first commit

1_hello_world/Makefile

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+#
+# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+# project subdirectory.
+#
+
+PROJECT_NAME := hello-world
+
+include $(IDF_PATH)/make/project.mk
+

1_hello_world/README.md

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+# Hello World Example
+
+Starts a FreeRTOS task to print "Hello World"
+
+See the README.md file in the upper level 'examples' directory for more information about examples.

1_hello_world/main/component.mk

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+#
+# "main" pseudo-component makefile.
+#
+# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)
+

1_hello_world/main/hello_world_main.c

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+/* Hello World Example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_system.h"
+#include "esp_spi_flash.h"
+
+
+void app_main()
+{
+    printf("Hello world!\n");
+
+    /* Print chip information */
+
+    esp_chip_info_t chip_info;
+    esp_chip_info(&chip_info);
+
+
+   printf("--------------------------------------------\n\r ");
+
+   printf("Hellow World , Esp32 !!\n\r ");
+
+    printf("This is ESP32 chip with %d CPU cores, WiFi%s%s, ",
+            chip_info.cores,
+            (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
+            (chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "");
+
+    printf("silicon revision %d, ", chip_info.revision);
+
+    printf("%dMB %s flash\n", spi_flash_get_chip_size() / (1024 * 1024),
+            (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "embedded" : "external");
+
+
+  printf("--------------------------------------------\n\r ");
+  fflush(stdout);
+
+}

2_blink_led/Makefile

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+#
+# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+# project subdirectory.
+#
+
+PROJECT_NAME := 2_blink_led
+
+include $(IDF_PATH)/make/project.mk
+

2_blink_led/README.md

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+# Blink Example
+
+Starts a FreeRTOS task to blink an LED
+
+See the README.md file in the upper level 'examples' directory for more information about examples.

2_blink_led/main/Kconfig.projbuild

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+menu "Example Configuration"
+
+config BLINK_GPIO
+    int "Blink GPIO number"
+	range 0 34
+	default 5
+	help
+		GPIO number (IOxx) to blink on and off.
+
+		Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to blink.
+
+		GPIOs 35-39 are input-only so cannot be used as outputs.
+
+endmenu

2_blink_led/main/blink.c

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+/* Blink Example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "driver/gpio.h"
+#include "sdkconfig.h"
+
+/* Can run 'make menuconfig' to choose the GPIO to blink,
+   or you can edit the following line and set a number here.
+*/
+#define BLINK_GPIO 16
+
+void blink_task(void *pvParameter)
+{
+    /* Configure the IOMUX register for pad BLINK_GPIO (some pads are
+       muxed to GPIO on reset already, but some default to other
+       functions and need to be switched to GPIO. Consult the
+       Technical Reference for a list of pads and their default
+       functions.)
+    */
+    gpio_pad_select_gpio(BLINK_GPIO);
+    /* Set the GPIO as a push/pull output */
+    gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);
+    while(1) {
+        /* Blink off (output low) */
+        gpio_set_level(BLINK_GPIO, 0);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+        /* Blink on (output high) */
+        gpio_set_level(BLINK_GPIO, 1);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+}
+
+void app_main()
+{
+    xTaskCreate(&blink_task, "blink_task", configMINIMAL_STACK_SIZE, NULL, 5, NULL);
+}

2_blink_led/main/component.mk

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+#
+# "main" pseudo-component makefile.
+#
+# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)