System and method for performing firmware update by patching

A method for performing firmware update on an embedded system by patching, comprising:

• receiving, by a computing device, an image of replacement firmware, wherein the embedded system is communicatively connected to the computing device, and the replacement firmware is a different version of current firmware stored in a non-volatile memory of the embedded system;
• determining, by the computing device, at least one different portion of the replacement firmware from the current firmware by comparing the image of the replacement firmware to the current firmware;
• retrieving, by the computing device, the at least one different portion from the image of the replacement firmware to form at least one fragment, wherein each of the at least one fragment corresponds to one of the at least one different portion retrieved from the image;
• creating, by the computing device, a patch file by data of the at least one fragment;
• transmitting, by the computing device, the patch file to the embedded system;
• and
• configuring, by the computing device, the embedded system to:
• copy corresponding portions of the current firmware from the non-volatile memory to a volatile memory;
• replace the copy of the corresponding portions of the current firmware in the volatile memory with data of the at least one fragment;
• erase the corresponding portions of the current firmware in the non-volatile memory;
• and
• write the replaced copy of the corresponding portions of the current firmware in the volatile memory into the erased corresponding portions of the current firmware in the non-volatile memory.

A non-transitory computer readable medium storing computer executable code, wherein the computer executable code, when executed at a processor of a computing device, is configured to:

• receive an image of replacement firmware, wherein the replacement firmware is a different version of current firmware stored in a non-volatile memory of an embedded system, and the embedded system is communicatively connected to the computing device;
• determine at least one different portion of the replacement firmware from the current firmware by comparing the image of the replacement firmware to the current firmware;
• retrieve the at least one different portion from the image of the replacement firmware to form at least one fragment, wherein each of the at least one fragment corresponds to one of the at least one different portion retrieved from the image;
• create a patch file by data of the at least one fragment;
• transmit the patch file to the embedded system;
• and
• configure the embedded system to:
• copy corresponding portions of the current firmware from the non-volatile memory to a volatile memory;
• replace the copy of the corresponding portions of the current firmware in the volatile memory with data of the at least one fragment;
• erase the corresponding portions of the current firmware in the non-volatile memory;
• and
• write the replaced copy of the corresponding portions of the current firmware in the volatile memory into the erased corresponding portions of the current firmware in the non-volatile memory.