Comments (1)
I can't help on heap use in Teensy. Maybe Paul could answer that question. I know that malloc fails in threads.
If you print a double in a thread, it may be stack overflow. It could be a thread stack or the handler stack.
Increase the size of all thread stacks and use chUnusedThreadStack() to see how much was used. Stacks are filled at startup and chUnusedThreadStack() scans for the amount used.
ChibiOS uses the ARM handler mode so there is a separate handler stack for ISRs.
I don't know how much handler stack is used by Teensy I selected 400 bytes in ChRt.h:
#define HANDLER_STACK_SIZE 400
You could increase the size and check use with chUnusedHandlerStack().
See the chBlinkPrint example for checking stack use.
Also print is not thread safe so printing in more than one thread requires use of a mutex.
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Related Issues (16)
- Works on Arduino Mega 2560 HOT 3
- ICUDriver on Arduino HOT 1
- Teensy LC support? HOT 1
- Support for STM32? HOT 5
- Both ChRt.c and ChRt.cpp in src ? (makes Atmel Studio failing) HOT 1
- CAN support HOT 1
- heap support HOT 1
- Teensy 4.0 support? HOT 9
- SAMD21 tickless HOT 3
- license HOT 1
- Porting VESC to Teensy 4 HOT 5
- Upgrade to the new ChibiOS version HOT 1
- Question regarding characteristics of ChRt's main thread ("loop()") HOT 2
- Teensy 4 - not working with latest teensyloader and/or arduino ide HOT 1
- Initialization code overwrites fault handler vectors HOT 1
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