Ring Indicator


#1

I have converted a product from GR64 to Q64 but I have a problem with the Ring Indicator. I need the Ring Indicator line to toggle whenever an SMS is received.

I have configured the modem with the following:

AT+CNMI=2,1,0,0,0

AT+WRIM=1,6,33

This should toggle the Ring Indicator whenever an SMS is received. This does not appear to happen. I have configure the UART to generate an interrupt whenever the modem status changes, ie ring indicator, but the interrupt is never generated. I have scoped the Ring Indicator line and I do not see any pulses on the line. If I revert back to a GR64 with its firmware, everything works perfectly.

Any ideas? Am I missing something?


#2

You should configure the modem with
AT*E2SMSRI=…
This will toggleing the “Ri” pin Indicator when an SMS is received~
good luck