Teensy 4.1 Resetting when running FreeRtos/Linux issue?

[Bodger62]

Hello All,

My problem is that the attached code, compiled on my Linux computer, used to work but now causes the Teensy 4.1 to constantly reset.

Teansy 4.1 core = 411FC271
Power-up Sequence
Teansy 4.1 core = 411FC271
CPU Lockup or Software Reset

I am relatively certain that the problem is with my laptop, as the code works on another colleague's computer without resetting, but I’ve no idea how to fix it.

I have attached the code, but not the FreeRros as it was too big, and the Arduino start-up statements.

Any help would be greatly received.

regards,

Ray

I couldn't attach the FreeRtos.zip as it was too large. The properties of the version I'm using are as shown below

name=FreeRTOS
version=10.4.3-8
author=Richard Barry <info@freertos.org>
maintainer=Phillip Stevens <phillip.stevens@gmail.com>
sentence=<h3>FreeRTOS Real Time Operating System implemented for AVR (Uno, Nano, Leonardo, Mega).</h3>
paragraph=The primary design goals are: Easy to use, Small footprint, Robust. Uses Watchdog Timer for 15ms resolution. Slow blink = stack overflow. Fast blink = heap malloc() failure.
category=Timing
url=https://github.com/feilipu/Arduino_FreeRTOS_Library
architectures=*
license=MIT
includes=Arduino_FreeRTOS.h

======================= It didn't like the .odt file either =======================

aygray@MORCHEBA:~$ uname --kernel-name --kernel-release --machine



Linux 5.4.0-195-generic x86_64



raygray@MORCHEBA:~$ cat /etc/os-release



NAME="Ubuntu"

VERSION="20.04.6 LTS (Focal Fossa)"

ID=ubuntu

ID_LIKE=debian

PRETTY_NAME="Ubuntu 20.04.6 LTS"

VERSION_ID="20.04"

HOME_URL="https://www.ubuntu.com/"

SUPPORT_URL="https://help.ubuntu.com/"

BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"

PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"

VERSION_CODENAME=focal

UBUNTU_CODENAME=focal

 

[Bodger62]

After a bit more research I have found the following

CrashReport:
A problem occurred at (system time) 14:43:47
Code was executing from address 0xEB000426
CFSR: 92
(DACCVIOL) Data Access Violation
(MMARVALID) Accessed Address: 0x3530
HTSR: 40000000
(FORCED) Forced Hard Fault
Temperature inside the chip was 41.15 °C
Startup CPU clock speed is 600MHz
Reboot was caused by auto reboot after fault or bad interrupt detected


Booting FreeRTOS kernel V10.3.1. Built by gcc 11.3.1 20220712 (newlib @NEWLIB_VERSION@) on Sep 18 2024. ***

raygray@MORCHEBA:~/.arduino15/packages/teensy/tools/teensy-compile/11.3.1/arm/bin$ ./arm-none-eabi-addr2line -e Pretend_GPU.ino.elf 0x3530
/home/raygray/.arduino15/packages/teensy/hardware/avr/1.59.0/cores/teensy4/pwm.c:336

However, pwm.c isn't used in this project.

oid quadtimer_init(IMXRT_TMR_t *p)
{
int i;

for (i=0; i < 4; i++) {
p->CH.CTRL = 0; // stop timer
p->CH.CNTR = 0;
p->CH.SCTRL = TMR_SCTRL_OEN | TMR_SCTRL_OPS | TMR_SCTRL_VAL | TMR_SCTRL_FORCE;
p->CH.CSCTRL = TMR_CSCTRL_CL1(1) | TMR_CSCTRL_ALT_LOAD;
// COMP must be less than LOAD - otherwise output is always low
L336 p->CH.LOAD = 24000; // low time (65537 - x) -
p->CH.COMP1 = 0; // high time (0 = always low, max = LOAD-1)
p->CH.CMPLD1 = 0;
p->CH.CTRL = TMR_CTRL_CM(1) | TMR_CTRL_PCS(8) |
TMR_CTRL_LENGTH | TMR_CTRL_OUTMODE(6);
}
}

 

[jmarsh]

0xEB000426 is not a valid address for code. It looks more like an opcode than a memory address.