So, timer_spinlock_take and portENTER_CRITICAL do the same thing?

Hello.

Could anyone help me understand how each of the esp32 registry change commands works?
The main ones I want to understand are: Is there a document that explains it?
Thank you.

Hello @lbernstone
Thank you for your attention.
As for my application, I was able to get around this problem, so it is no longer a problem for me.
However, I decided to post because I think this is a bug in the Arduino framework.
I hope someone from the Espressif development takes a look at the post ...

This code works for me, and gives me a pretty consistent reading at 1113mV.

#include <driver/adc.h>
gpio_num_t ref_pin = (gpio_num_t) 25;
void setup() {adc2_vref_to_gpio(ref_pin);}
void loop() {}



Hello.
It is basically the same code I used.
If I write only your code it works, but if I use ...

Hello.
I am testing some ESP32 modules using VSCode + PlatformIO in Arduino framework.
My experiment involves putting some values in the output of DAC2 (GPIO26) and reading that value with ADC1_CHANNEL_6 (GPIO34).
My output values on DAC2 are updated via serial, transmitting values between 0 and 255 ...