CMD-12DP512 AXIOM, CMD-12DP512 Datasheet - Page 19

• Manufacturer Part Number: CMD-12DP512
• Description: Single Board Computer
• Manufacturer: AXIOM

Specifications of CMD-12DP512

• Silicon Manufacturer: Freescale
• Core Architecture: HCS12
• Core Sub-architecture: S12D
• Features: Onboard Back Ground Debug, Breadboard And Prototype Area
• Kit Contents: Board
• Silicon Family Name: S12D
• Silicon Core Number: MC9S12DP512

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Tips and Suggestions
Following are a number of tips, suggestions, and answers to common questions that will solve
many problems. Download the latest software from the
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• Verify option settings, operating mode, and memory target.
• Review I/O connections with on-board connections and HCS12 operating mode
• Make sure the correct power is supplied to the board. Only use a 9 volt, 200mA
• Make sure application code is in an address space that actually exists in memory
• When running code as stand-alone application, initialize ALL peripherals used by the
• Disable the COP watchdog timer (clear COPCTL) or service the COP timer in the main
restrictions on I/O ports.
minimum adapter (provided) or power supply. If applying a power strip, make sure it is
turned on.
(memory present at the address). The MODE, MEM_EN and ECS options change the
memory map.
HCS12 including the Stack, Serial Ports, and MODE / PEAR registers, and oscillator.
The USB BDM may perform some initialization in a script file, review and test with these
settings disabled. If Paging external memory make sure the EMK bit is being set in the
MODE register.
loop of the application code. The HCS12 will enable the COP by default and it will reset
the HCS12 every few 100ms. The COP timer does not run when the USB BDM or other
BDM is controlling the HCS12.
describe problem.
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by email for further assistance. Provide board name and
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