Merge pull request #6 from Skyler84:standalone

Standalone

examples/CMakeLists.txt

@@ -5,7 +5,7 @@ function(add_simple_example NAME)
     target_link_libraries(${filename}_example PRIVATE gui)
     add_executable(${filename}_example_app main.cpp)
     target_compile_definitions(${filename}_example_app PRIVATE CLASSNAME=${NAME}View INCLUDE="examples/${filename}_view.hpp")
-    target_link_libraries(${filename}_example_app PRIVATE gui ${filename}_example)
+    target_link_libraries(${filename}_example_app PRIVATE gui ${filename}_example pico_bootrom)
     if(NOT ${filename} STREQUAL all)
         target_link_libraries(all_example PUBLIC ${filename}_example)
     endif()

examples/main.cpp

@@ -4,6 +4,7 @@
 #include "pico/stdio.h"
 #include "hardware/watchdog.h"
 #include "pico/time.h"
+#include "pico/bootrom.h"
 
 #include "drivers/button.hpp"
 #include "buttons.hpp"
@@ -23,28 +24,32 @@ MyButton buttons[4] = {
 
 extern "C" bool tud_connected();
 
-void wait_stdio_usb_connected_timeout(long timeout_ms){
+void wait_stdio_usb_connected_timeout(long timeout_ms, long startup_delay_ms){
   if(!tud_connected())
     return;
   absolute_time_t timeout = make_timeout_time_ms(timeout_ms);
 
   while(!stdio_usb_connected() && absolute_time_diff_us(get_absolute_time(), timeout) > 0){
     watchdog_update();
   }
-  if(stdio_usb_connected)
-    sleep_ms(1000);
+  timeout = make_timeout_time_ms(startup_delay_ms);
+  while(stdio_usb_connected() && absolute_time_diff_us(get_absolute_time(), timeout) > 0){
+    watchdog_update();
+  } 
 }
 
 int main(){
 
   stdio_init_all();
 
-  wait_stdio_usb_connected_timeout(2500);
-
-  while(!(tud_connected() && stdio_usb_connected())){
-    watchdog_update();
+  if(watchdog_enable_caused_reboot()) {
+    reset_usb_boot(0,0);
   }
 
+  watchdog_enable(200, 1);
+
+  wait_stdio_usb_connected_timeout(2500, 500);
+
   MyButton::init_all();
   auto &controller = ViewController::get();
   CLASSNAME v{nullptr};