search

tonton81 / FlexCAN_T4

FlexCAN (CAN 2.0 / CANFD) Library for Teensy 3.x and 4.0
https://forum.pjrc.com/threads/56035-FlexCAN_T4-FlexCAN-for-Teensy-4
MIT License
195 stars 65 forks source link

Example sketch crashes #16

Closed larsrengersen closed 4 years ago

larsrengersen commented 4 years ago

I have a little test setup on the bench. Node 1 = CAN sender, has 120 Ohm termination Node 2 = Teensy 3.6 with ISO1050 transceiver Node 3 = CAN sniffer, also has 120 Ohm termination

I can see the traffic Node 1 sends on Node 3, but on the Teensy nothing. Even worse, when I just uploaded the example CAN2.0_example_FIFO_with_interrupts.ino my Macbook crashed and gave me a high fan for a second and then a black screen (high USB current??) Crash report starts with panic(cpu 1 caller 0xffffff80062469aa): Kernel trap at 0xffffff80066ab9a3, type 14=page fault, registers: Earlier I just got nothing back on the serial monitor and after a short while the Teensyduino App crashed. Upon restart I got: Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at cc.arduino.view.NotificationPopup.updateLocation(NotificationPopup.java:244) at cc.arduino.view.NotificationPopup.<init>(NotificationPopup.java:222) at cc.arduino.view.NotificationPopup.<init>(NotificationPopup.java:72) at cc.arduino.contributions.ContributionsSelfCheck.lambda$run$0(ContributionsSelfCheck.java:134) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) I also tried two IFCT examples, they too crash my mac. I am using Teensyduino 1.51 and Arduino IDE 1.8.12 on a Macbook Pro using Catalina 10.15.6 Any thoughs on what is happening or how I can resolve these issues?

tonton81 commented 4 years ago

this is not related to the library, your mac is having java issues in general with the arduino ide, try to update your java

larsrengersen commented 4 years ago

Thanks for your quick response! Since some (small) sketches worked and IFCT related did not I jumped to the conclusion it was the library. But you are completely right, it was not. I opened a topic at the PJRC forum and it turned out IDE 1.8.12 was causing the issues.

IDE 1.8.12 was quickly replaced for perhaps related "issues" . Update the IDE to 1.8.13. Also TeensyDuino at ver 1.53

That looks like the mac OS version that comes with the integrated installer - so one stop at PJRC.com for IDE 1.53 it seems delivers complete IDE&TD install. And indeed, did that upgrade and works like a charm now! Thanks for your support and the great library.