Repository navigation
Fix audio DMA buffer allocation on RP2040 - #10278
Merged
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Recent additions in #10240 throw buffer allocation errors on RP2040 devices. The exact cause is unknown, but is likely "due to the Python VM heap taking up most of the outer heap (allocated via port_malloc using tlsf)." @tannewt
The RP2040 does not support PSRAM, so
port_mallocshould be unnecessary in this case. All relevant code is reverted to the original implementation if compiling for an RP2040-based device.Tested on a Waveshare RP2040-Zero and Pimoroni Pico Plus 2 with I2S audio output.
Fixes #10256