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Wakeup from VLLS3 using TSI configures through Processor Expert?

Question asked by Antonio Quevedo on Mar 12, 2016
Latest reply on Apr 29, 2016 by Marek Neuzil



I am working on a small message panel using a Kinetis KL05 device. I want it to stay in a low-power mode, keeping the message to be displayed in RAM. Thus, I decided to enter VLLS3 mode. I want to wake up the device using a TSI electrode, and I have configured the PE TSS_Library component to use PTA9 as the wakeup electrode. CPU component is configured to FEI clock mode (default). I can use the Cpu_SetOperationMode() function to put the device into VLLS3, but my TSI electrode does not wake it up.

I am not using a FRDM board, it is a custom board, with an external USBDM debugger. There is an LED connected (cathode) to pin PTB1. The test project (CW10.6) is attached to this question.

I know that there are some examples for low-power wakeup, but I would prefer a step-by-step description of how can I program the device for working as described above. For example, if I have to configure RTC to hardware trigger the TSI, if I can use the LPO source for RTC, and so on.

Thanks in advance



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