公开(公告)号：US20210081335A1

公开(公告)日：2021-03-18

申请号：US16996448

申请日：2020-08-18

Applicant: NXP B.V.

Inventor： Alexandre Frey ,  Ralf Malzahn ,  Frank Ernst Johannes Siedel ,  Shameer Puthalan ,  Andreas Lessiak ,  Daniel Kershaw

IPC: G06F12/14 ,  G06F12/02 ,  G06F12/0873 ,  G06F21/79

Abstract: There is described a method of managing memory in an electronic device, the method comprising creating a set of equally sized logical regions in a logical address space, each logical region comprising a plurality of consecutive logical addresses, and mapping a subset of consecutive logical addresses within each logical region to a set of physical addresses within a corresponding physical memory region, the subset of consecutive logical addresses comprising the first logical address within the logical region, said first logical address being mapped to a base address within the corresponding physical memory region. Furthermore, there is described a controller for managing memory in an electronic device and a method of determining a physical memory address in a physical memory region using such a controller.

公开(公告)号：US20170289115A1

公开(公告)日：2017-10-05

申请号：US15090022

申请日：2016-04-04

Applicant: NXP B.V.

Inventor： Andreas Lessiak ,  Josef Fruehwirth ,  Jozsef Jelenka ,  Harald Schlatte - Schatte ,  Alexandre Frey

IPC: H04L29/06 ,  G06F21/62 ,  G06F9/445 ,  H04B5/00 ,  G06F17/30

CPC classification number: H04L63/0492 ,  G06F8/52 ,  G06F8/65 ,  G06F16/214 ,  G06F21/57 ,  G06F21/6245 ,  H04B5/0031 ,  H04L63/0853 ,  H04W4/80 ,  H04W12/0023 ,  H04W12/00407

Abstract: A current operating system that is stored in a persistent storage circuit of a secure element is replaced by receiving a set of migration rules that specify changes to a set of data object types. Based upon the set of migration rules, a migration engine identifies data objects stored in a persistent storage circuit and corresponding to the set of data object types. For each of the identified data objects: a subset of the migration rules are selected that correspond to a data object type that corresponds to a particular data object, and based upon the selected subset, the particular data object is transformed. A new operating system can then be enabled.