[41CL] updating OS modules

[Sylvain Cote]

Perfect, we now know where we are.

Preconditions before doing the procedure:

• Fresh batteries (very important, we are updating the OS sector)
• Serial cable connected on both ends
• clupdate running in update mode on the computer side
• YUPS ROM mapped
• YFNX ROM mapped
• MMU active
  

Now the procedure ...

1. Execute OSPROT to protect the OS space (just in case)
2. Execute CDBDEL to delete the CFLDB ROM image located at RAM page 0x806.
3. Execute CPONLY to enable the compare-only mode
4. Execute CMOPEN to open up the serial port
5. Enter "*" in alpha (without the quotes)
6. Execute FLCHK? to download the FLDB ROM image, scan the entire Flash space and upload the CFLDB ROM image to the computer
   at this point you should see only 4 outdated files in your report, if that is the case then continue with the following ...
7. Execute OSUPDT to unprotect the OS space
8. Execute FLUPD to download and update the OS space ROM images
9. Execute OSPROT to protect the OS space
10. Execute CDBEXP to upload the CFLDB ROM image to the computer and display the updated report
    at this point you should see 0 outdated files in your report, if that is the case then continue with the following ...
11. Enter "000" in alpha (without the quotes) and execute YCRC you should get "7BA02836"
12. Enter "002" in alpha (without the quotes) and execute YCRC you should get "0C2B5718"
13. Enter "006" in alpha (without the quotes) and execute YCRC you should get "661E8616"
14. Enter "007" in alpha (without the quotes) and execute YCRC you should get "ACE0E4DE"
15. Execute CMCLOSE to close down the serial port
    

Sylvain