running blinking example

demos/host/main.c

@@ -0,0 +1,34 @@
+#include "boards/board.h"
+#include "tusb.h"
+
+#if defined(__CODE_RED)
+  #include <cr_section_macros.h>
+  #include <NXP/crp.h>
+  // Variable to store CRP value in. Will be placed automatically
+  // by the linker when "Enable Code Read Protect" selected.
+  // See crp.h header for more information
+  __CRP const unsigned int CRP_WORD = CRP_NO_CRP ;
+#endif
+
+volatile uint32_t system_tick = 0;
+void SysTick_Handler (void)
+{
+  system_tick++;
+}
+
+int main(void)
+{
+  uint32_t current_tick = system_tick;
+
+  board_init();
+	tusb_init(0);
+
+  while (1)
+  {
+    if (current_tick + 1000 < system_tick)
+    {
+      current_tick += 1000;
+      board_leds(0x03, (current_tick/1000)%2); /* Toggle LED once per second */
+    }
+  }
+}