How to Update 41-CL

[Sylvain Cote]

Hello Bas,

(02-07-2022 08:54 AM)wbvreeuwijk Wrote:  Since they are system ROMs I understand that they cannot be updated with clupdate, but is there an alternative method? And if so, what is it?

These ROMs can be updated like any other ROM with clupdate, you just have to remove the OS sector protection to do it.

Taken from the "41CL Update Functions" manual written by Monte, Exemple 3, page 45.

Code:

XEQ "CMOPEN"      // Open the communication channel with the host machine.
XEQ "OSUPDT"      // Enable the OS sector for updating. 
"000>007"         // Specify the OS sector for update.
XEQ "FLCHK?"      // Download the CFLDB, verify the OS sector, and then upload the updated CFDLB.
XEQ "FLUPD"       // Update the OS sector.
XEQ "CMCLOSE"     // Close the communication channel with the host machine.
XEQ "OSPROT"      // Restore the protection to the OS sector..
XEQ "CDBDEL"      // Clear page 0x806 in RAM and mark the CFLDB as invalid.

Sylvain