On Fri, Oct 7, 2022 at 12:18 AM Alexey Orishko <alexey.oris...@gmail.com> wrote:
> > I'm trying to configure a SIMCOM7070G modem to work with > ModemManager/NetworkManager. > > > > I've observed there is already a plugin and some support, but unless I'm > mistaken, it looks like the current support expects this modem to be > connected via USB (4 ports provided by usb: AT cmds, data, gnss, etc). > Only AT cmd and data (2 ports) are needed as a minimum. > > > My problem is I'm using it in a board where the modem is NOT connected > to the CPU via USB: The regular UART (UART1) provided by the modem is used. > When you run PPP over UART1, it is not available for AT commands > (breaking data stream is not really an option). > You need another port for controlling a modem. > Yes, I'm aware of this. But afaik it should be possible to simply send initial commands and then switch to ppp in the same port, and from reading the pdf I understand this should be doable. I understand once the connection is established you cannot send AT commands but I don't care about that. > > > Taking into account I want to establish a CAT-M, could somebody please > help me with the configuration? > To configure a modem to connect to LTE Cat-M1 without GSM/Cat-NB use > AT+CNMP=38 and AT+CMNB=1 > How to instruct modemmanager to do this while handshaking with the modem? > > > > Alexey >
