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Has anyone tried to connect sim7600 LTE module with STM32f7 by USB HS?

Simcomm has developed USB drivers for Windows/Linux/Android but not for ordinary microcontrollers such as STM32.

STM32F7 has the USB HS Host ability.

Regards,

Parham
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1 Answers1

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STM32F7 has partial USB HS support and need external phy driver. Full support is provider only through full speed. You should not have any problem once you have a usb stack working on the micro ( st free usb library probably is not going to be enough )

Damiano
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  • Thanks for your answer. The HW is of no problem. The main difficulty is the driver. The module needs to act as a dial up modem and requires a modem kind driver. – Parham Oct 30 '18 at 19:17
  • Both if you plan to use circuit switched data or packet switched data, you should be fine with few AT command (strings) on a CDC-ACM usb profile provided that module has an TCP/IP stack, otherwise you should look for a software stack to compile on the MCU. – Damiano Oct 31 '18 at 09:48
  • CDC-ACM USB profile won't work, and AT command is not for transmitting with high data rate. I am looking for a software stack but I'm afraid there is no one, and I think I have to write it myself. – Parham Nov 02 '18 at 06:17
  • You're right. If you don't need many simultaneous connections some modules implement trasparent modes which can bind a CDC-ACM I/O directly to a socket. If this is not the case I'm afraid you need a mux. – Damiano Nov 05 '18 at 08:06