ESP32 Forum

Hi,

we have experienced some strange behaviour when using the function.

The function was used already previously where the result was as expected. The problems started after enabling the flash encryption.

1. Code same as before causes that the MCU freezes and not even a WDT cause a reset. All other tasks are as well blocked.
2. Experimentally we have putted before the call of the function a 100ms delay. After this when calling the function the WDT causes a reset.
3. Experimentally we have increased the delay to 1000ms. After this when calling the function the result is as expected.

We use esp-idf 4.4.2 and the partition size is 3MB.

Any ideas what could cause this?

Danijel

I would suggest to not erase whole partition at once, just do it in chunks.

I forgot to mention this, but we have try it as well. Experimentally we have discovered that at least a 150ms delay before the function is still fine, if its less then this, strange behaviour occurs.

Hi
I have the same problem in IDF 5.0. TaskDelay(150) doesn't help. Do you resolve this problem?

In the function before using esp_partition_erase_range I had a hang (vTaskSuspend(xHandleMonitorTask)) of a task (not related to this task) and it was causing this problem. I don't know why, but as soon as I turned off suspending the task, the freezing problem disappeared. It's possible it's a bug in the IDF.