Hello,
I am a beginner in Zephyr, I am using the nRF 52840 DK board and I want to connect the HX711 module I have implemented nrfx_timer to make it possible to give pulse at every(1 microsecond (required as per datasheet of HX711)).
When I am trying to print any "test" message it is getting printed but I am not able to make gpio_pin_toggle(dev,PIN). at every 1 microsecond. I am getting the below error message.
<err> os: ***** BUS FAULT *****
[00:00:00.006,317] <err> os: Instruction bus error
[00:00:00.006,347] <err> os: r0/a1: 0x00000000 r1/a2: 0x04000000 r2/a3: 0x00000001
[00:00:00.006,347] <err> os: r3/a4: 0x1ab90a2f r12/ip: 0xa0000000 r14/lr: 0x00018853
[00:00:00.006,347] <err> os: xpsr: 0x01000019
[00:00:00.006,347] <err> os: Faulting instruction address (r15/pc): 0x1ab90a2e
[00:00:00.006,347] <err> os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
[00:00:00.006,378] <err> os: Fault during interrupt handling
[00:00:00.006,378] <err> os: Current thread: 0x20001b58 (unknown)
[00:00:01.044,097] <err> fatal_error: Resetting system
I was just checking and came to know that above 900 microseconds it works fine but below that is not working.
My question is, Is there any internal delay of gpio_pin_toggle() causing the above error? If yes what is an alternate solution for this?
Thanks and regards,
Neeraj Dhekale
