Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

v5.1-dev-4784-g6cfc6f53be

Operating System used.

Windows

How did you build your project?

VS Code IDE

If you are using Windows, please specify command line type.

PowerShell

Development Kit.

ESP32-S2

Power Supply used.

USB

What is the expected behavior?

• The DAC channels should not be swapped in DAC_CHANNEL_MODE_ALTER mode when using dac_continuous_write.

What is the actual behavior?

Sometimes if i reset CPU during DAC DMA processing the DAC channels are swapped. Rebooting the CPU one or several times resolve the problem.

Steps to reproduce.

1. Configure 2 DAC channels in DAC_CHANNEL_MODE_ALTER mode
2. Start DAC output by dac_continuous_write -> channels are not swapped
3. Reboot CPU several times till swapping occur.

Debug Logs.

ESP-ROM:esp32s2-rc4-20191025
Build:Oct 25 2019

More Information.

No response