How do I use a F221m Ericsson GPRS modem with a Freescale (motorola) 68HC908AP64 (HC08 Family) microcontroller.
I know how to use the serial port of the microcontroller. But I do not know what commands to use, or in what form, to control the modem, and send TCP/IP packets over a GPRS server to a fixed IP server.
Do I simply write the AT Command to the microcontroller port?
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