Robust over the air reprogramming

Abstract

An example operation includes one or more of downloading an update of a non-volatile electrically erasable memory storage of a vehicle, determining whether the memory storage is arranged in one of a block of bytes of memory and an individual byte of memory, selecting a programming protocol based on the memory storage arrangement and writing the memory storage based on the selected programming protocol.

What is claimed is: 
     
         1 . A method, comprising:
 downloading an update of a non-volatile electrically erasable memory storage of a vehicle;   determining whether the memory storage is arranged in one of a block of bytes of memory and an individual byte of memory;   selecting a programming protocol based on the memory storage arrangement; and   writing the memory storage based on the selected programming protocol.   
     
     
         2 . The method of  claim 1  further comprising:
 generating an interruption flag if the download was interrupted; 
 determining the memory storage arrangement of the interrupted download coinciding with the interruption flag; and 
 resuming the download based on the memory storage arrangement. 
 
     
     
         3 . The method of  claim 1  further comprising:
 determining whether the download was complete; and 
 issuing an interruption flag if the download is incomplete. 
 
     
     
         4 . The method of  claim 3  further comprising:
 generating a magic number if the interruption flag is detected; 
 writing the magic number to the memory storage at a memory location where the download terminated; and 
 resuming the download at the memory location where the download terminated. 
 
     
     
         5 . The method of  claim 4  wherein the magic number is randomly generated. 
     
     
         6 . The method of  claim 1  further comprising:
 writing the download to a temporary storage; 
 validating the download; and 
 copying the validated download from the temporary storage to the memory storage. 
 
     
     
         7 . The method of  claim 1  further comprising:
 generating an interruption flag if the download was interrupted; 
 booting from the memory storage if no interruption flag was generated; and 
 booting from a previous memory storage if the interruption flag was generated. 
 
     
     
         8 . A system, comprising:
 an engine control unit operatively coupled to the transport, the engine control unit;   downloads an update of a non-volatile electrically erasable memory storage of a vehicle;   determines whether the memory storage is arranged in one of a block of bytes of memory and an individual byte of memory;   selects a programming protocol based on the memory storage arrangement; and   writes the memory storage based on the selected programming protocol.   
     
     
         9 . The system of  claim 8 , wherein the engine control unit
 generates an interruption flag if the download was interrupted;   determines the memory storage arrangement of the interrupted download coinciding with the interruption flag; and   resumes the download based on the memory storage arrangement.   
     
     
         10 . The system of  claim 8 , wherein the engine control unit
 determines whether the download was complete; and   issues an interruption flag if the download is incomplete.   
     
     
         11 . The system of  claim 8 , wherein the engine control unit
 generates a magic number if the interruption flag is detected;   writes the magic number to the memory storage at a memory location where the download terminated; and   resumes the download at the memory location where the download terminated.   
     
     
         12 . The system of  claim 11 , wherein the magic number is randomly generated. 
     
     
         13 . The system of  claim 8 , wherein the engine control unit
 writes the download to a temporary storage;   validates the download; and   copies the validated download from the temporary storage to the memory storage.   
     
     
         14 . The system of  claim 8 , wherein the engine control unit
 generates an interruption flag if the download was interrupted;   boots from the memory storage if no interruption flag was generated; and   boots from a previous memory storage if the interruption flag was generated.   
     
     
         15 . A non-transitory computer readable medium comprising instructions, that when read by a processor, cause the processor to perform:
 downloading an update of a non-volatile electrically erasable memory storage of a vehicle;   determining whether the memory storage is arranged in one of a block of bytes of memory and an individual byte of memory;   selecting a programming protocol based on the memory storage arrangement; and   writing the memory storage based on the selected programming protocol.   
     
     
         16 . The non-transitory computer readable medium of  claim 15 , comprising
 generating an interruption flag if the download was interrupted;   determining the memory storage arrangement of the interrupted download coinciding with the interruption flag; and   resuming the download based on the memory storage arrangement.   
     
     
         17 . The non-transitory computer readable medium of  claim 15 , comprising
 determining whether the download was complete; and   issuing an interruption flag if the download is incomplete.   
     
     
         18 . The non-transitory computer readable medium of  claim 15 , comprising
 generating a magic number if the interruption flag is detected;   writing the magic number to the memory storage at a memory location where the download terminated; and   resuming the download at the memory location where the download terminated.   
     
     
         19 . The non-transitory computer readable medium of  claim 15 , comprising
 writing the download to a temporary storage;   validating the download; and   copying the validated download from the temporary storage to the memory storage.   
     
     
         20 . The non-transitory computer readable medium of  claim 15 , comprising
 generating an interruption flag if the download was interrupted;   booting from the memory storage if no interruption flag was generated; and   
       booting from a previous memory storage if the interruption flag was generated.