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PLS8-E: PWR_IND does not work as intended before first start [SOLVED] | Thales IoT Developer Community

June 27, 2018 - 8:46am, 1666 views

I have finally solved this issue.

WAKEUP from modem were connected to a GPIO not setup correctly so instead of an input it was undefined and happend to be high. Which caused some modems, but not all to act a bit crazy. PWR_IND went low as soon as WAKEUP went high. But after a start sequence on IGN, PWR_IND acted as expected when powering the modem both on and off.

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I have seen that on some modules the PWR_IND signal does not work as intended.

I have to start the module once and after that PWR_IND works as expected.

PWR_IND is connected as the hardware interface description specifies.

Have anyone seen this? Is there a fix? Maybe even a firmware update that fixes this?

ati1

Cinterion
PLS8-E
REVISION 03.017
A-REVISION 01.000.05