ESP8266 RTOS SDK simple task IllegalInstruction error
Posted: Mon Mar 22, 2021 11:10 amI recenty start messing with esp8266 in their RTOS SDK (because I want to finish one school project and I thing it would be cool if it will be in RTOS). But my code keeps crashing and I cant find out why.. :/ I am not new to microcontrollers but I know only a few thing about RTOS so thats why I post this into Newbie Corner.
After few failed attempts, i created this simple program and it gives the same error, it boots just fine, but crashes after while..
Program:
Log:
Am I missing something ?
Resources I found:
page 291: https://www.mouser.com/pdfdocs/esp-idf.pdf
https://docs.espressif.com/projects/esp ... ion-errors
After few failed attempts, i created this simple program and it gives the same error, it boots just fine, but crashes after while..
Program:
Code: Select all
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
void empty_task() {
while(1) {
}
}
void app_main() {
xTaskCreate(
empty_task,
"Empty Task",
1024,
NULL,
1,
NULL
);
}
Log:
Code: Select all
ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x40100000, len 7040, room 16
tail 0
chksum 0xeb
load 0x3ffe8408, len 24, room 8
tail 0
chksum 0x02
load 0x3ffe8420, len 3312, room 8
tail 8
chksum 0x76
csum 0x76
I (44) boot: ESP-IDF v3.4-rc 2nd stage bootloader
I (44) boot: compile time 10:28:46
I (44) qio_mode: Enabling default flash chip QIO
I (51) boot: SPI Speed : 80MHz
I (57) boot: SPI Mode : QIO
I (63) boot: SPI Flash Size : 4MB
I (69) boot: Partition Table:
I (75) boot: ## Label Usage Type ST Offset Length
I (86) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (98) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (109) boot: 2 factory factory app 00 00 00010000 000f0000
I (121) boot: End of partition table
I (127) esp_image: segment 0: paddr=0x00010010 vaddr=0x40210010 size=0x13b78 ( 80760) map
0x40210010: _stext at ??:?
I (163) esp_image: segment 1: paddr=0x00023b90 vaddr=0x40223b88 size=0x05560 ( 21856) map
I (170) esp_image: segment 2: paddr=0x000290f8 vaddr=0x3ffe8000 size=0x003dc ( 988) load
I (175) esp_image: segment 3: paddr=0x000294dc vaddr=0x40100000 size=0x00080 ( 128) load
I (188) esp_image: segment 4: paddr=0x00029564 vaddr=0x40100080 size=0x04548 ( 17736) load
I (206) boot: Loaded app from partition at offset 0x10000
Task watchdog got triggered.
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Core 0 register dump:
PC : 0x4021cca0 PS : 0x00000030 A0 : 0x00000000 A1 : 0x3ffeb590
0x4021cca0: empty_task at /home/user/Documents/esp8266/hello_world/main/main.c:38 (discriminator 1)
A2 : 0x00000000 A3 : 0x00000000 A4 : 0x00000000 A5 : 0x00000000
A6 : 0x00000000 A7 : 0x00000000 A8 : 0x00000000 A9 : 0x00000000
A10 : 0x00000000 A11 : 0x00000000 A12 : 0x00000000 A13 : 0x00000000
A14 : 0x00000000 A15 : 0x00000000 SAR : 0x00000000 EXCCAUSE: 0x00000000
Backtrace: 0x4021cca0:0x3ffeb590
0x4021cca0: empty_task at /home/user/Documents/esp8266/hello_world/main/main.c:38 (discriminator 1)
Am I missing something ?
Resources I found:
page 291: https://www.mouser.com/pdfdocs/esp-idf.pdf
https://docs.espressif.com/projects/esp ... ion-errors