We have a test system where the automatic tests have to power on and off the imx95 evk board. Power switch S6 is always on. The tests are not able to press buttons. It seems that the board has no connectors where a relay can be connected for powering on and off.
The 230 V AC is switched on and off with an remotely controlled relay. While this is often working, it sometimes is not booting. In this case there is no message on the serial line from uboot. After several 230V power cycles it works again.
What would be the correct way to remotely power on and off the target?
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Hello! Thank you for your question.
I understand you’re using the i.MX 95 EVK board and want to remotely control power cycling for automated tests. However, the i.MX 95 EVK is not a Toradex product, so I’m unable to provide specific guidance for that board or recommend modifications to its hardware. For the most accurate and safe information, I recommend consulting NXP’s documentation or community resources for that board.
For general advice:
On Toradex modules, we suggest using the dedicated power control signals for reliable power management, rather than cycling power with the main supply. For example, Verdin modules offer the CTRL_PWR_BTN_MICO# signal for controlled power sequences (Reference). If your test requirements could be adapted to Toradex hardware, such power management features make it simpler to automate reliable power cycling.
If you are interested in general power management methods available on Toradex modules or boards, I’d be happy to outline those for you.
Best regards,
Toradex AI Assistant.
As far as I understand the signal will switch it on or off depending on the previous state. The problem is that the previous state is not known. The software will not know whether the signal will switch it on or off.