MPU302 Software Updates

The assembly language software were assembled with EASy68K tool, downloadable from www.easy68k.com

The AMbug monitor, BIOS for CP/M-68k, drive A & B may be updated with the following procedures. Use the “send text file” command of your terminal program to upload. This program will auto-execute when file loading is finished. When program execution is completed it will display “S record execution completed” and prompt for more inputs.

There are 4 pieces of software for CPM updates: CPM15000, BIOS, utility software to clear memory, and flash programming software to copy CPM15000+BIOS into flash. The software can be uploaded individually as follow:

• Upload clrCPMmem.s68. This program will auto-execute when file loading is finished. When program execution is completed it will display “S record execution completed” and prompt for more inputs. Please note that source & listing are also included in the zip file, only upload the file with .s68 extension
• Upload CPM15000.s68.
• Upload MPUBIOS_v2.s68 (note: the source & listing are also included in the zip file, only upload the file with .s68 extension)
• Upload progCPM.s68. This program will auto-execute when file loading is finished. When program execution is completed it will display “S record execution completed” and prompt for more inputs.

Alternatively a combined program, progCPMall.S68, can be uploaded that will do all the above in one upload. This program will auto-execute when file loading is finished.

The available flash memories are split into two drives. Drive A contains the CP/M 68K v1.3 distribution files and drive B contains additional utility files. The drive images were created using cpmtools. The image is first loaded into MPU302 RAM and then programmed into flash memories. Drive A image is larger than MPU302 RAM, so it is split into two parts and uploaded/programmed in two separate steps.

• Part 1 of drive A image. Upload the data file, CPMDSKA1.TXT, first. This is a large file and will take about 15 minutes to load. Next, upload the program file, progdska.s68. It will auto-execute when file loading is finished and copy part 1 of drive A into flash.
• Part 2 of drive A image. Upload the data file, CPMDSKA2.TXT, first. This is a large file and will take about 15 minutes to load. Next, upload the program file, progdskb.s68. It will auto-execute when file loading is finished and copy part 2 of drive A into flash. This will complete the process of updating drive A.

Drive B is 384K bytes in size and contains additional utilities for CP/M 68K. Upload the data file, CPMDSKB.TXT, first. This is a large file and will take about 10 minutes to load. Next, upload the program file, progdskc.s68. It will auto-execute when file loading is finished and copy the drive B image into flash.

Alternatively a combined program, progdskcall.S68, can be uploaded that will do all the above in one upload. This program will auto-execute when file loading is finished.