Question about the sim reset signal

[Alex Wiitamaki]

Hello,

We were wondering under what conditions the SIM will reset. AT commands will give us activity on the SIM_CLK and and SIM_IO lines, we are looking to see activity on the SIM_RST line for hardware test purposes.

Thanks,

Alex Wiitamaki

[AndreasF]

Hi Alex.

The LTE modem is responsible for the reset signal as well as the clock signal and I/O serial data, as you can read here.

I think the reset signal is triggered by the modem if there is problems with the SIM card, but I have to check with our development team to be sure.

Best regards,

Andreas