Struct PsramSplit 

pub struct PsramSplit {
    pub private: &'static mut [MaybeUninit<u8>],
    pub global_free: usize,
}

A private PSRAM region carved off the global heap, plus the external bytes registered with the global heap. Returned by psram_split.

Fields

private: &'static mut [MaybeUninit<u8>]

A private, exclusive, contiguous PSRAM region for a foreign allocator (e.g. LVGL’s built-in TLSF via lv_mem_add_pool). It is not part of the global heap, so the global allocator never hands it to Box / Vec / DMA. Its base is the PSRAM mapping base, so it is large-aligned (≥ any reasonable ALIGN_SIZE) — the caller needs no alignment math and no unsafe.

'static is sound because esp-hal’s Psram has no Drop: the mapping is a hardware side effect recorded in esp-hal’s range statics and is not undone when the Psram value drops.

global_free: usize

External (PSRAM) heap free immediately after registering the remainder with the global heap, in bytes. 0 when reserve was None (all private, nothing registered).

Trait Implementations

impl Debug for PsramSplit

Available on crate feature psram only.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.