Esp32 FreeRTOS hello_world project

FreeRTOSHelloWorld/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.13)
+
+set(esp_idf_dir "${CMAKE_CURRENT_LIST_DIR}/FreeRTOS/vendors/espressif/esp-idf")
+include(${esp_idf_dir}/tools/cmake/idf.cmake)
+string(FIND "${CMAKE_TOOLCHAIN_FILE}" "esp32s2" SOC_TOOLCHAIN_ESP32S2)
+string(FIND "${CMAKE_TOOLCHAIN_FILE}" "esp32" SOC_TOOLCHAIN_ESP32)
+if (NOT(${SOC_TOOLCHAIN_ESP32S2} EQUAL -1))
+    set(SOC_NAME "esp32s2")
+elseif(NOT($SOC_TOOLCHAIN_ESP32) EQUAL -1)
+    set(SOC_NAME "esp32")
+endif()
+
+project(freertos_examples)
+
+# Tell IDF build to link against this target.
+set(IDF_PROJECT_EXECUTABLE afr_demo)
+get_filename_component(
+    IDF_EXECUTABLE_SRCS
+    "src/main.c" ABSOLUTE
+    )
+
+# Add some extra components. IDF_EXTRA_COMPONENT_DIRS is an variable used by ESP-IDF
+# to collect extra components.
+#get_filename_component(
+#   EXTRA_COMPONENT_DIRS
+#    "components/foo" ABSOLUTE
+#)
+#idf_build_component(${EXTRA_COMPONENT_DIRS})
+
+# As of now there's no offical way to redefine config files outside of FreeRTOS source tree.
+# This is a temporary approach to inject an include path so that this takes precedence over the
+# config file directory inside FreeRTOS.
+include_directories(BEFORE freertos-configs)
+
+# Add freertos as an subdirectory. AFR_BOARD tells which board to target.
+if ("${SOC_NAME}" STREQUAL "esp32s2")
+    set(AFR_BOARD espressif.esp32s2_saola_1 CACHE INTERNAL "")
+elseif("${SOC_NAME}" STREQUAL "esp32")
+    set(AFR_BOARD espressif.esp32_devkitc CACHE INTERNAL "")
+endif()
+add_subdirectory(FreeRTOS)
+
+# Link against the mqtt demo so that we can use it. Dependencies of this demo are transitively
+# linked.
+#target_link_libraries(
+    #    AFR::greengrass
+    #   afr_demo
+#   PRIVATE
+#   AFR::demo_core_mqtt
+#   AFR::common_io
+#   idf::foo
+#)

FreeRTOSHelloWorld/src/main.c

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+#include <stdio.h>
+#include "FreeRTOS.h"
+#include "task.h"
+#include "esp_system.h"
+#define PIN_OUT 13
+
+void vHelloWorld(void *pvParams)
+{
+    while(1){
+        printf("HelloWorld!\n");
+        vTaskDelay(pdMS_TO_TICKS(1000));    
+    }
+}
+
+void app_main()
+{
+    xTaskCreate(vHelloWorld, "HelloWorld", 1024, NULL, 2, NULL);
+}
+
+/*-----------------------------------------------------------*/
+extern void esp_vApplicationTickHook();
+void IRAM_ATTR vApplicationTickHook()
+{
+    esp_vApplicationTickHook();
+}
+
+extern void esp_vApplicationIdleHook();
+void vApplicationIdleHook()
+{
+    esp_vApplicationIdleHook();
+}
+
+void vApplicationDaemonTaskStartupHook()
+{
+}
+
+/*-----------------------------------------------------------*/
+
+/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
+ * implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
+ * used by the Idle task. */
+void vApplicationGetIdleTaskMemory(StaticTask_t **ppxIdleTaskTCBBuffer,
+                                   StackType_t **ppxIdleTaskStackBuffer,
+                                   uint32_t *pulIdleTaskStackSize)
+{
+    static StaticTask_t xIdleTaskTCB;
+    static StackType_t uxIdleTaskStack[configMINIMAL_STACK_SIZE];
+    *ppxIdleTaskTCBBuffer = &xIdleTaskTCB;
+    *ppxIdleTaskStackBuffer = uxIdleTaskStack;
+    *pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
+}
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief This is to provide the memory that is used by the RTOS daemon/time task.
+ *
+ * If configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
+ * implementation of vApplicationGetTimerTaskMemory() to provide the memory that is
+ * used by the RTOS daemon/time task.
+ */
+void vApplicationGetTimerTaskMemory(StaticTask_t **ppxTimerTaskTCBBuffer,
+                                    StackType_t **ppxTimerTaskStackBuffer,
+                                    uint32_t *pulTimerTaskStackSize)
+{
+    static StaticTask_t xTimerTaskTCB;
+    static StackType_t uxTimerTaskStack[configTIMER_TASK_STACK_DEPTH];
+
+    *ppxTimerTaskTCBBuffer = &xTimerTaskTCB;
+    *ppxTimerTaskStackBuffer = uxTimerTaskStack;
+    *pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
+}