Robust over the air reprogramming
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.
1. A method, comprising:
generating, via a vehicle, a magic number if a download of an update to the vehicle is incomplete;
writing, via the vehicle, the magic number to a memory associated with the download;
resuming, via the vehicle, the download of the update at the memory; and
writing, via the vehicle, the download of the update to the memory based on a programming protocol selected by the vehicle.
2. The method of claim 1 wherein the magic number is randomly generated.
3. The method of claim 1 further comprising:
writing, via the vehicle, the download to a temporary storage;
validating, via the vehicle, the download; and
copying, via the vehicle, the validated download from the temporary storage to the memory.
4. The method of claim 1 further comprising:
booting, via the vehicle, from a previous memory storage when an interruption flag is detected.
5. The method of claim 1 further comprising:
selecting, via the vehicle, a programming protocol based on a memory storage arrangement of the memory.
6. The method of claim 1 further comprising:
issuing, via the vehicle, an interruption flag if the download is incomplete.
7. The method of claim 1 further comprising:
determining, via the vehicle, whether the download was complete.
8. A system, comprising:
a vehicle comprising one or more processors and an electronic control unit operatively coupled to the vehicle, the electronic control unit configured to:
generate a magic number if a download of an update to the vehicle is incomplete;
write the magic number to a memory associated with the download;
resume the download of the update at the memory; and
write the download of the update to the memory based on a programming protocol selected by the vehicle.
9. The system of claim 8 , wherein the magic number is randomly generated.
10. The system of claim 8 , wherein the electronic control unit is further configured to:
write the download to a temporary storage;
validate the download; and
copy the validated download from the temporary storage to the memory.
11. The system of claim 8 , wherein the electronic control unit is further configured to:
boot from a previous memory storage when an interruption flag is detected.
12. The system of claim 8 , wherein the electronic control unit is further configured to:
select a programming protocol based on a memory storage arrangement of the memory.
13. The system of claim 8 , wherein the electronic control unit is further configured to:
issue an interruption flag if the download is incomplete.
14. The system of claim 8 , wherein the electronic control unit is further configured to:
determine whether the download was complete.
15. A non-transitory computer readable medium comprising instructions, that when read by a processor, cause the processor to perform:
generating a magic number if a download of an update to a vehicle is incomplete;
writing the magic number to a memory associated with the download;
resuming the download of the update at the memory; and
writing the download of the update to the memory based on a programming protocol selected by the vehicle.
16. The non-transitory computer readable medium of claim 15 , wherein the magic number is randomly generated.
17. The non-transitory computer readable medium of claim 15 , comprising:
writing, via the vehicle, the download to a temporary storage;
validating, via the vehicle, the download; and
copying, via the vehicle, the validated download from the temporary storage to the memory.
18. The non-transitory computer readable medium of claim 15 , comprising:
booting from a previous memory storage when an interruption flag is detected.
19. The non-transitory computer readable medium of claim 15 , comprising:
selecting a programming protocol based on a memory storage arrangement of the memory.
20. The non-transitory computer readable medium of claim 15 , comprising:
issuing an interruption flag if the download is incomplete.