rizopoulos,
Thank you for your reply.
The embedded reference(five demo example?) use sync. interface to implement.
so, i have two problem,
First , I didn't read part of sync. communication,
but I know sync. interface not have rts pin.
so, you think i should read the part of sync.?
Second, according to the following code
P1DIR &= ~PIN_RTS;//rts pin as input/low voltage
P1IES &= ~PIN_RTS;//lo to high trigger(because rts will produce a pull-up pulse by ant module)
P1IE |= PIN_RTS;//enable interrupt
Can you tell me that code is right or wrong.