We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hi,
I'm working on application that uses a USB HUAWEI MU709 modem with STM32F407. First off all, i used the usb stack from keil. I follow the USB PL2303 example. The usb communication works fine. Then, to have a PPP connexion, i used the network stack from kiel. There is an example with Custom modem, i flowed it to make my own. The modem driver control block is as follows: DRIVER_MODEM Driver_MODEM; DRIVER_MODEM Driver_MODEM = { Initialize, Uninitialize, Listen, Dial, Hangup, IsOnline, Notify };
The problem that i have is with Notify callback. When i send my AT commands to the modem, i always have a timeout. But, the modem is responding with the expected responses. Can you please tell what would be the problem?
Best regards,