PPC600 Family Debugger | 50
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SYStem.Option.STEPSOFT Use alternative method for ASM single step
The alternative method circumvents a processor problem when a store type instruction is executed at the
time a debug event occurs. This option is a workaround for the following errata:
• MPC7448 errata #24
• MPC8610 errata JTAG #2
• MPC8640/41 errata JTAG #4
Only enable this option, if one of the above processors is used and if the effect of this errata has been
observed.
If the code to be debugged is located in RAM, SYStem.Option.STEPSOFT can be used without further
configuration.
If the code to be debugged is located in read-only memory, the alternative method can be used if RAM is
available and free for debugger use. In this case, declare the read-only memory using MAP.BOnchip, and
the RAM used by the debugger using FLASH.TARGET.
Format: SYStem.Option.STEPSOFT [ON | OFF]
NOTE: The alternative workaround can only fix issues caused by single steps. Manual
breaks and on-chip breakpoints can still be affected by the problem.