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  • amowry's Avatar
    12-01-2022, 06:26 PM
    I believe that this does the trick: USBCON |= (1 << USBE); PLLCSR |= (1 << PLLE); // Resume the USB Clock (PPL) USBCON &= ~(1 << FRZCLK); // Resume the USB Clock
    5 replies | 273 view(s)
  • amowry's Avatar
    12-01-2022, 04:56 PM
    Just in case anyone else has this question, I found that the LowPower library that I am using doesn't turn off the USB clock. When I do that using the code below before putting the MCU in idle mode, the consumption...
    5 replies | 273 view(s)
  • amowry's Avatar
    11-30-2022, 05:20 AM
    Thanks for this reply, Paul! I was beginning to think that the datasheet is indeed misleading. I am testing idle current with most peripherals (USB, ADC, SPI, etc. turned off), and still getting 4.5 mA, which is in the...
    5 replies | 273 view(s)
  • amowry's Avatar
    11-30-2022, 12:37 AM
    My apologies that this is about an older product, but here goes: On this page the idle current for the Teensy 2.0 is quite a bit higher than the 32U4 datasheet seems to suggest on page 396 (around 1.5 mA for 3.3 V/8...
    5 replies | 273 view(s)
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32U4 power consumption 12-01-2022 06:26 PM
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