adc oneshot read fail

[josef2600]

Board

ESP32 DEV

Device Description

nothing is attached. only put 100nf caps on ADC pins.

Hardware Configuration

analog pins, gpio 32-33-34-35

Version

latest master (checkout manually)

IDE Name

arduino

Operating System

win 10

Flash frequency

80 mhz

PSRAM enabled

no

Upload speed

921600

Description

since in board version 3.0 you have removed any checking attach pins or custom settings, i only have this in setup:

  analogReadResolution(12); //12 for all chips except ESP32S3 where default is 13 bits (range from 0 to 8192)
  analogSetAttenuation(ADC_11db); //for C3 => ADC_11db: 2770 mv - ADC_6db: 1509 mv - ADC_2_5db: 1083 mv - ADC_0db: 800 mv

i have created a task that only reads multi analog pins:

        my_static_readadc_cX += analogReadMilliVolts(32);
        my_static_readadc_cX += analogReadMilliVolts(33);
        my_static_readadc_cX += analogReadMilliVolts(34);
        my_static_readadc_cX += analogReadMilliVolts(35);

but i always get these warnings:

E (38271) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 37257][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (39327) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 38312][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (40381) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 39366][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (42487) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 41472][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (43541) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 42526][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (44592) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 43577][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (45646) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 44631][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!

in version 2.0.14 this code works just fine, but in version 3 it gets me these warnings and reads bad values. the real value is 0, but when i get these, the reading values become 250 or 300 or like that instead of 0. there are zero volt on them.
i am using debug (info).
what is going on? why did you change everything so poorly?

Sketch

----

Debug Message

E (38271) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 37257][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (39327) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 38312][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (40381) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 39366][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (42487) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 41472][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (43541) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 42526][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (44592) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 43577][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (45646) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 44631][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[P-R-O-C-H-Y]

Hi @josef2600, can you please set Debug level to Debug or Verbose and post whole Debug output from serial? In 3.0.0 we added "Before setup" and "After Setup" prints for debugging purposes.

[P-R-O-C-H-Y]

I have also tested on ESP32 the ADC Oneshot and I did not get any error messages and ADC reads fine.

[josef2600]

thank you. i will.

[josef2600]

sorry for the delay. my project is very large and investigating anything take a long time. the ADC reading is in a task.
anyway, i tested few things:
if i use my ADC code in main loop, it works. then, i thought to change few settings for task creating. and i got it!
if i do this:
xTaskCreatePinnedToCore(analog_reading_all_channels_event_task, "Task_analog_reading", 4000, NULL, 2 , NULL,0);
everything works. but if i change the core to 1:
xTaskCreatePinnedToCore(analog_reading_all_channels_event_task, "Task_analog_reading", 4000, NULL, 2 , NULL,1);
then i get errors for adc oneshot read fail and so on. my Arduino has these settings:
Arduino runs on core 0
events run on core 1
my tasks run on core 0
my analog reading task run on core 1.
why is that? why analog readings don't work on core 1 ?
the only task on core 1 is my analog readings.

the debug output:

[ 31683][V][esp32-hal-periman.c:229] perimanSetBusDeinit(): Deinit function for type GPIO (1) successfully set to 0x4019cc14
[ 31694][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 32 successfully set to type INIT (0) with bus 0x0
[ 31704][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 32 successfully set to type GPIO (1) with bus 0x21
[ 31714][V][esp32-hal-periman.c:229] perimanSetBusDeinit(): Deinit function for type ADC_ONESHOT (7) successfully set to 0x400f4340
[ 31726][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 32 successfully set to type ADC_ONESHOT (7) with bus 0x21
[ 31736][D][esp32-hal-adc.c:309] __analogReadMilliVolts(): Creating cali handle for ADC_0
E (33923) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 32523][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (34923) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 33523][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (35939) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 34539][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (36955) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 35555][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (37955) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 36555][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (38955) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 37555][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (39971) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[ 38571][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!

and at the start :

[  1317][V][esp32-hal-periman.c:229] perimanSetBusDeinit(): Deinit function for type GPIO (1) successfully set to 0x4019cc14
[  1328][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 32 successfully set to type GPIO (1) with bus 0x21
[  1338][V][esp32-hal-periman.c:229] perimanSetBusDeinit(): Deinit function for type ADC_ONESHOT (7) successfully set to 0x400f4340
[  1350][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 32 successfully set to type ADC_ONESHOT (7) with bus 0x21
[  1360][D][esp32-hal-adc.c:309] __analogReadMilliVolts(): Creating cali handle for ADC_0
[  1388][D][WiFiGeneric.cpp:1042] _eventCallback(): Arduino Event: 0 - WIFI_READY
[  1455][V][WiFiGeneric.cpp:394] _arduino_event_cb(): AP Started
[  1461][D][WiFiGeneric.cpp:1042] _eventCallback(): Arduino Event: 10 - AP_START
0
hi
=========== After Setup Start ============
INTERNAL Memory Info:
------------------------------------------
  Total Size        :   328268 B ( 320.6 KB)
  Free Bytes        :   162260 B ( 158.5 KB)
  Allocated Bytes   :   154000 B ( 150.4 KB)
  Minimum Free Bytes:   162168 B ( 158.4 KB)
  Largest Free Block:   110580 B ( 108.0 KB)
------------------------------------------
GPIO Info:
------------------------------------------
  GPIO : BUS_TYPE[bus/unit][chan]
  --------------------------------------  
     1 : UART_TX[0]
     3 : UART_RX[0]
    32 : ADC_ONESHOT[0][4]
============ After Setup End =============
E (2995) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[  1545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (3995) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[  2545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (4995) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[  3545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (5995) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[  4545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (6995) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[  5545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (7995) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[  6545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!

[josef2600]

one thing i forgot, in board manager 2.0.14 my Task_analog_reading stack memory was 2000, and it was working great. but since board manager v3.0.0 , it was panicking and was resetting. after i changed my stack size to 4000, it worked.

update:
even when task is running on core 0, i still get adc oneshot read fail sometimes too. not many, but i get them. specially in start and creations of analog pins.

update 2:
more debug:

[111804][V][esp32-hal-periman.c:229] perimanSetBusDeinit(): Deinit function for type GPIO (1) successfully set to 0x4019d394
[111815][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 33 successfully set to type GPIO (1) with bus 0x22
[111825][D][esp32-hal-adc.c:131] __analogChannelConfig(): Deleting ADC_UNIT_0 line cali handle
[111834][D][esp32-hal-adc.c:142] __analogChannelConfig(): Creating ADC_UNIT_0 line cali handle
[111842][D][esp32-hal-adc.c:131] __analogChannelConfig(): Deleting ADC_UNIT_0 line cali handle
[111851][D][esp32-hal-adc.c:142] __analogChannelConfig(): Creating ADC_UNIT_0 line cali handle
[111859][V][esp32-hal-periman.c:229] perimanSetBusDeinit(): Deinit function for type ADC_ONESHOT (7) successfully set to 0x400f4aa0
[111871][V][esp32-hal-periman.c:154] perimanSetPinBus(): Pin 33 successfully set to type ADC_ONESHOT (7) with bus 0x22
[111882][W][LittleFS.cpp:77] begin(): LittleFS Already Mounted!
E (132613) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[130976][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (249068) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[247431][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (250127) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[248490][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (251182) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[249545][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (252241) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[250604][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!
E (254311) adc_oneshot: adc_oneshot_get_calibrated_result(250): adc oneshot read fail
[252674][E][esp32-hal-adc.c:333] __analogReadMilliVolts(): adc_oneshot_get_calibrated_result failed!

[P-R-O-C-H-Y]

@josef2600 Thanks for good report. I will try to investigate more and test it why it's happening and what exactly the issue is. I am adding it to the roadmap for 3.0.0.

This is probably unrelated to the issue you have, but this part of your log is weird and should not happed I guess. All take a look for sure.

[111825][D][esp32-hal-adc.c:131] __analogChannelConfig(): Deleting ADC_UNIT_0 line cali handle
[111834][D][esp32-hal-adc.c:142] __analogChannelConfig(): Creating ADC_UNIT_0 line cali handle
[111842][D][esp32-hal-adc.c:131] __analogChannelConfig(): Deleting ADC_UNIT_0 line cali handle
[111851][D][esp32-hal-adc.c:142] __analogChannelConfig(): Creating ADC_UNIT_0 line cali handle