Hello Shan, It's my assumption that the reason is because level-triggers are not practical for most applications. The reason for having an interrupt at all is to handle some event that happens in the physical (i.e. "real") world. A level trigger would essentially be the same a polling the port, which can be easily done in your main program loop.
Best regards, -Jim -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of shan Sent: Saturday, September 20, 2008 9:13 PM To: [email protected] Subject: [Tinyos-help] level trigger for interrupt Hi, Why does GpioInterrupt not support level trigger, only support edge trigger ? Can anyone tell me the internal or reason ? Best regards shan _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
