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Thanks for the update, Paul. Did you have a chance to look why the PulsePlosition library coming with TD does not compile anymore with T4?
(see also...

I was trying to use PulsePosition library with T4 and got lots of compilation errors (urgent at least for me... :)). It was compiled using TD 1.48b1 but with TD 1.48b2, I got the same errors:


...

When Teensy 4.0 is going to be programmed through Teensyduino, you can see a little red LED flickering.

Ist it possible to control this LED by my own code, like the other LED on pin 13?

I replaced the empty loop() of the benchmark with the following code to get the temperature printed once a second:


long nextTime = millis() + 1000;

void loop() {
if (millis() > nextTime) {...

I also had this effect one time (last three lines missing) - but with Teensy 3.2 connected.

A FastCRC benchmark comparison between Teensy 3.2 (with hardware CRC) and Teensy 4.0 (table based CRC)...

Thanks. After commenting out PIT_MCR = 0 in startup.c it does not freeze anymore.
Which side effects may it cause, when it is not set to 0?

Thank you Manitou. After replacing the FastCRC library in Teensyduino with the latest version from FrankBoesing, the code compiles.

But when the library gets loaded and initialized, it freezes my...

Hi,

does the Teensy 4.0 not support fast (hardware) CRC calculation like the Teensy 3.x?
With Teensy 3.x I was using Frank Boesings FastCRC implementation (...

Yes, slightly older, I was using version 1.39. Now, with 1.40 the yield() function in HX711 library does not lock the Teensy 3.2 anymore.

For those Teensy users who overcome this thread due to problems with the HX711 library, also this topic might be helpful:...

Just to let you know that commenting the yield() function at the beginning of the .cpp file also helped in my case. The difference to the problem of pynpyn was in my case that it locked out also my...