Add SDK test and reorganize repository

test_poject/CMakeLists.txt

@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 3.13)
+
+include($ENV{PICO_SDK_PATH}/external/pico_sdk_import.cmake)
+
+project(sample C CXX ASM)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+pico_sdk_init()
+
+add_executable(sample main.c)
+
+pico_enable_stdio_usb(sample 1)
+pico_enable_stdio_uart(sample 1)
+pico_add_extra_outputs(sample)
+
+target_link_libraries(sample pico_stdlib)

test_poject/main.c

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+#include <stdio.h>
+#include "pico/stdlib.h"
+#include "hardware/gpio.h"
+#include "pico/binary_info.h"
+
+const int LED_PIN = 25;
+
+int main ()
+{
+    bi_decl(bi_program_description("Sample binary"));
+    bi_decl(bi_1pin_with_name(LED_PIN, "on-board PIN"));
+
+    stdio_init_all();
+
+    gpio_init(LED_PIN);
+    gpio_set_dir(LED_PIN, GPIO_OUT);
+
+    while(1)
+    {
+        gpio_put(LED_PIN, 0);
+        sleep_ms(250);
+        gpio_put(LED_PIN, 1);
+        puts("Hello Word\n");
+        sleep_ms(1000);
+    }
+}
+