CSV file save on SPIFF filesystem, 10MB on internal flash

2026-04-07 13:21:27 +02:00
parent f36cb96f21
commit 668b590d7c
11 changed files with 1032 additions and 27 deletions
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <vector>
+#include "esp_heap_caps.h"
+
+// Allocator custom per PSRAM
+template <typename T>
+struct PSRAMAllocator {
+    using value_type = T;
+
+    PSRAMAllocator() noexcept {}
+
+    template <typename U>
+    PSRAMAllocator(const PSRAMAllocator<U>&) noexcept {}
+
+    T* allocate(std::size_t n) {
+        void* ptr = heap_caps_malloc(n * sizeof(T), MALLOC_CAP_SPIRAM);
+        if (!ptr) {
+            throw std::bad_alloc();
+        }
+        return static_cast<T*>(ptr);
+    }
+
+    void deallocate(T* p, std::size_t) noexcept {
+        heap_caps_free(p);
+    }
+};
+
+template <typename T>
+using PSRAMVector = std::vector<T, PSRAMAllocator<T>>;