There are several versions of CP/M 2.2 are available for SC114 Z80 Motherboard.

New versions, together with more detailed instructions, are available here.

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The version you install must match the hardware you are using. The following hardware options need to be considered:

• Serial port:
  • SC114’s built-in bit-bang (9600 baud) port
  • Z80 SIO at address 0x80
  • 68B50 ACIA at address 0x80
• Compact Flash card size:
  • 64MB
  • 128MB

Using a version of CP/M customised for a different size compact flash card to the one you are using isn’t normally a critical issue.

The CP/M software is supplied (below) in the form of a “PutSys” program. This program is loaded and run from the Small Computer Monitor and installs CP/M to a formatted Compact Flash card. Once installed to Compact Flash, CP/M can be started with the command “CPM”, from the Small Computer Monitor.

Downloads

One of these files is required to set up CP/M on SC114. The serial port and card sizes are included as part of the file names. Select the most suitable version for your system.

• PutSys_SC_BitBang_CF128_code8000 (HEX)
• PutSys_RC2014_SIO_CF64_code8000 (HEX)
• PutSys_RC2014_SIO_CF128_code8000 (HEX)
• PutSys_RC2014_ACIA_CF64_code8000 (HEX)
• PutSys_RC2014_ACIA_CF128_code8000 (HEX)

The programs above are based on code by Grant Searle.

Instructions

Instructions to install CP/M 2.2 on to a Compact Flash card can be found here.