brtaylor
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    • brtaylor
      brtaylor replied to the thread GPIO IRQ Priority on Teensy 4.1.
      For posterity, I wanted to decrease the priority of an interrupt attached to pin 35. So I added this to my setup(): IOMUXC_GPR_GPR27 = 0xEFFFFFFF; digital_pin_to_info_PGM[35] = {&GPIO2_DR, &CORE_PIN35_CONFIG, &CORE_PIN35_PADCONFIG...
    • brtaylor
      brtaylor replied to the thread GPIO IRQ Priority on Teensy 4.1.
      Thanks for the help! I got that hacked into setup by copying the attachInterrupt code into my own version using IRQ_GPIO2_16_31 instead of IRQ_GPIO6789. Will have to clean up the code, but it looks like it's working as expected without needing...
    • brtaylor
      brtaylor replied to the thread GPIO IRQ Priority on Teensy 4.1.
      That's cool! I'm working on decreasing the priority of pin 35. So I guess after changing the value of IOMUXC_GPR_GPR27 in setup(), I would then update the appropriate row in digital_pin_to_info_PGM in digital.c to reflect using GPIO2 instead of...
    • brtaylor
      I have a Teensy 4.1 project that has two external interrupts: One interrupt is tied to the data ready pin from a sensor. When this fires, I read the sensor data, perform some processing on the data, and add it to a circular buffer. The sensor...
    • brtaylor
      brtaylor reacted to Rezo's post in the thread SparkFun To Manufacture Teensy with Like Like.
      @Dogbone06 was quite involved with Sparkfun around 2 years ago due to reliability issues with the NXP BGA joints coming undone from the thin, flexible PCB of the MM. They did some rework to the HW I believe to try an minimize that issue.
    • brtaylor
      brtaylor replied to the thread SparkFun To Manufacture Teensy.
      The real question is whether they'll switch to a red soldermask...Congrats! Hope the QA stays good - I've never had an issue with a PJRC shipped product. Has anyone used a newer MMOD batch in a longer term product? I bought a bunch of the early...
    • brtaylor
      brtaylor replied to the thread SBUS read.
      SERIAL_8E2_RXINV_TXINV works for me. I also wrote an SBUS library here: https://github.com/bolderflight/sbus
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