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Type: Posts; User: klaasdc

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    Writing to T4 flexspi program flash

    I am trying to understand the flash writing code I found in the EEPROM emulation (https://github.com/PaulStoffregen/cores/blob/master/teensy4/eeprom.c) and the flasher4 OTA code.

    A lot is going on...
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    Thanks, it works now :o

    Thanks, it works now :o
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    Thanks to clarify. I think it could still be...

    Thanks to clarify. I think it could still be useful for my purpose. With those parameters and the online test it looks to correspond with the CRC32 MPEG-2 variant.
    I am wondering though, if I double...
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    CRC32 using Teensy4 DCP

    I was looking into using the DCP to efficiently calculate CRC32 checksums. However, I can't really find documentation on how to configure and use this peripheral. The "i.MX RT1060 Processor Reference...
  5. Okay, I peeked in Wire.cpp and see what you mean....

    Okay, I peeked in Wire.cpp and see what you mean. I'm a bit surprised why it would need interrupts at all, since the Wire read/write methods are supposed to be blocking anyway?

    I'll solve it with...
  6. Wire library versus TimerOne interrupt on Teensy 2

    I'm trying to read data from a ST L3G4200D gyro, which is connected via 2-wire I2C to a Teensy2, on pins D0 and D1. I'm using the L3G library from https://github.com/pololu/l3g-arduino for...
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    The PSU also feeds 144 WS2812B LEDs and an USB...

    The PSU also feeds 144 WS2812B LEDs and an USB Host Shield with Xbox controller attached, so there is definately some idle load.

    I suppose looking at it on a scope would be best, but I don't have...
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    That is possible, but the POR circuit is supposed...

    That is possible, but the POR circuit is supposed to keep the uC in reset until a high enough voltage V_lvdl of 1.6V is reached? The minimum supply voltage of the MK20DX128 is 1.71V according to the...
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    Yes, I got the power supply from here:...

    Yes, I got the power supply from here: http://www.ledsee.com/index.php/power-supply-s-adapters/150w-power-supply-5v-detail

    I can try to find a manufacturer name when I'm back home.
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    Teensy 3 Power-On Reset

    I'm using a Teensy 3 in combination with a 150W 5V switching PSU. When I power the Teensy from this 5V source, it doesn't do anything when switching on the PSU. It does work however when I first...
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