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Ananas

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      Ananas reacted to PaulStoffregen's post in the thread Custom PCB Bootloader not Blinking LED with Like Like.
      To add a bit more info, at startup the MKL02 waits for power to be stable (above approx 3.0V) for several milliseconds. Then it drives PSWITCH high. No blink code or other communication is performed during that startup wait. The code assumes...
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      Ananas replied to the thread Custom PCB Bootloader not Blinking LED.
      Continuing my investigation into why DCDC_PSWITCH isn't being driven high, I decided to measure the stability of my 3.3V DCDC converter. I measured a 50mV pk to pk value, which I assume is considered stable given that I am well within the MKLs...
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      Ananas posted the thread Custom PCB Bootloader not Blinking LED in Technical Support & Questions.
      Hello, I am developing a data acquisition CAN processing board using an embedded teensy 4.1 on a custom PCB. I am using the preprogrammed bootloader purchased from PJRC. The board uses a slight modification to the Teensy 4.1 power system...
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