QUERY · ISSUE

The memory of ESP32S3 is too large when using microython

openby Zhengqinze05opened 2022-11-11updated 2022-11-17

enhancement

I use the board of the ESP32. When I turn on microython, there will be more than 100 k of internal memory consumption. I have other functions to add. This more than 100 k of memory will cause me to run out of memory. What can I do to reduce the memory consumption of esp32 when using microython

CANDIDATE · ISSUE

How can ESP32 place microython startup on psram

closedby Zhengqinze05opened 2022-11-15updated 2022-11-15

enhancement

I use esp32S3. I have an idea about whether I can place the startup of microython in psram instead of iram. If so, what changes do I need to make? I want to save the space of iram as much as possible

Assessment

S Sonnet · high

Both issues originate from the same underlying concern — reducing RAM pressure on ESP32-S3 with MicroPython — but they are asking distinct questions. The query (#9921) asks broadly how to reduce overall internal memory consumption (~100KB overhead). The candidate (#9963) asks specifically whether MicroPython startup code can be moved from IRAM to PSRAM. The candidate's IRAM→PSRAM relocation idea is one possible approach to the query's problem, but it doesn't resolve or fully address it. Neither issue resolves the other; they are complementary questions about the same hardware constraint.

Suggested action

Link both issues as related in a comment on each. They may benefit from a shared answer covering ESP32-S3 memory layout options (IRAM reduction, PSRAM usage, config trimming). Do not close either.

The memory of ESP32S3 is too large when using microython

How can ESP32 place microython startup on psram

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