Buzzer - Wavecom GR64 GSM/GPRS Integrator's Manual

CAUTION
NOTE

5.14 Buzzer

Pin
31
Connecting the BUZZER signal to an inverting transistor-buffer followed by a
piezoelectric transducer enables the Wireless CPU to play pre-programmed melodies
or sounds. A recommended implementation is shown below.
Figure 24: Recommended circuit for a Buzzer implementation
GR64 Integrators Manual
Page: 69/104
The application must have the capability to set this signal active high.
The signal is not needed to perform normal SW-updating through
"Updater", but it is needed to support special service tools from
Wavecom.
The SW updating tool for GR64 is "Updater".
The Updater is a local application that downloads a signed image
provided by Wavecom.
It is not necessary to set SERV active to run "Updater".
Name Direction
BUZZER Output
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son autorisation préalable
Function
Buzzer Output