Is it possible to use AT commands to control the CMX868 V.22bis modem?
A. The CMX868 interfaces directly to a host controller via a simple serial control bus which permits low level control. If an AT command set is desired then an interpreter will be resident in the host controller. To control the CMX868 in its Evaluation Kit, the EV8680, a simple AT command interpreter is provided in the embedded software. The full C source code for the controller software is available in the Evaluation Kit or can downloaded from the CML web-site from CML Evkits – EV8680. The AT interpreter functions must be extracted from the full software and could provide a basis for further development.