##
Import('env')
+# Add 'NET' build option, let user select board network connection type
+vars = Variables()
+vars.Add(EnumVariable('NET', 'Network connection type', 'Ethernet', ['Ethernet', 'Wifi']))
+vars.Update(env)
+Help(vars.GenerateHelpText(env))
+
env.ImportLib('Time')
if env.get('NET') == 'Ethernet':
env.ImportLib('Ethernet')
else:
env.ImportLib('WiFi')
-env.ImportLib('SPI')
\ No newline at end of file
+env.ImportLib('SPI')
+
+env.BuildCore()
\ No newline at end of file