修改lvgl。cjson内存管理器

applications/lvgl/lv_port_mem.c

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2026-01-24     Administrator       the first version
+ */
+#include <rtthread.h>
+#include "lvgl.h"
+#include <stddef.h>
+
+extern struct rt_memheap sdram_heap;  //
+
+void *lv_custom_mem_alloc(size_t size)
+{
+    return rt_memheap_alloc(&sdram_heap, size);
+}
+
+void lv_custom_mem_free(void *ptr)
+{
+    if (ptr) rt_memheap_free(ptr);
+}
+
+void *lv_custom_mem_realloc(void *ptr, size_t new_size)
+{
+    return rt_memheap_realloc(&sdram_heap, ptr, new_size);
+}

applications/lvgl/lv_port_mem.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2026-01-24     Administrator       the first version
+ */
+#ifndef APPLICATIONS_LVGL_LV_PORT_MEM_H_
+#define APPLICATIONS_LVGL_LV_PORT_MEM_H_
+
+void *lv_custom_mem_alloc(size_t size);
+void  lv_custom_mem_free(void *ptr);
+void *lv_custom_mem_realloc(void *ptr, size_t new_size);
+
+#endif /* APPLICATIONS_LVGL_LV_PORT_MEM_H_ */