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KBADA.1
KBADA.1
Associate
November 17, 2020
Solved

AT command using stm32l496

I recently bought "P-L496G-CELL02" and I would like to communicate in AT command with the module:

here is the message that appears:

Welcome to STM32-Cellular to Cloud (STM32-C2C)

AT commands terminal: connection to PC with USB-OTG FS is needed.

Modem is using eSIM.

The modem did not answer...

Please:

    - Connect The modem on STMod+ port

    - Install STM32 VCP drivers

    - Connect USB link to PC on USB-OTG FS

    - Set JP7 on U5V if no STLINK is plugged

    - Set SW1 to position "1" if no STLINK is plugged

    - Set terminal to 8bits/115200b/1 stop/No parity on OTG FS

    - Reset while pressing joystick up button

Please retry

when i change the baud rate to 115200, the module does not respond

i'm using windwows 10 and also ubuntu 19.04.

This topic has been closed for replies.
KBADA.1
KBADA.1Best answer
Associate
November 23, 2020

i solved it

to activate the AT commands, you must: check the correct position of the jumpers:

JP3 -> ARD_V5_IN

JP4 and JP5 -> + 3V3 JP 6 -> positoin 1-2 (to the left)

JP7 -> STLK

 JP8 -> closed

 JP9 -> open

- Open gtkterm or other similar utility and set the baud rate to 9600, bring it to ACM0 and wait for the STM welcome message to appear. - Once the message is displayed, briefly press the "RESET" button and hold the joystick UP. - Once this is done, a message is displayed indicating that we can talk to an AT command

- you have to open a new terminal and run gtkterm but this time choosing the port "ACM1" and the baud rate on "115200"

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2 replies

PChia.2237
PChia.2237
Senior
November 23, 2020

Hi,

i am in your situation. i write you a message to collaborate if you want

KBADA.1
KBADA.1AuthorBest answer
Associate
November 23, 2020

i solved it

to activate the AT commands, you must: check the correct position of the jumpers:

JP3 -> ARD_V5_IN

JP4 and JP5 -> + 3V3 JP 6 -> positoin 1-2 (to the left)

JP7 -> STLK

 JP8 -> closed

 JP9 -> open

- Open gtkterm or other similar utility and set the baud rate to 9600, bring it to ACM0 and wait for the STM welcome message to appear. - Once the message is displayed, briefly press the "RESET" button and hold the joystick UP. - Once this is done, a message is displayed indicating that we can talk to an AT command

- you have to open a new terminal and run gtkterm but this time choosing the port "ACM1" and the baud rate on "115200"

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