mpc860 codewarrior debug issue

ravadasrikanth3 — Thu, 04 Apr 2019 08:54:32 GMT

we are using MPC860TCVR66D4 Powerquicc Processor with Codewarrior 8.8 IDE where we are unable enter in to the Debug Mode Can any one help us.

The error we are getting is Exception

Re: mpc860 codewarrior debug issue

alexander_yakov — Tue, 09 Apr 2019 20:05:19 GMT

Exception 0x01000 is generated on unimplemented instruction or instruction with unimplemented register.

The following is said in MPC860 Reference Manual, Section 6.1.3.1:

6.1.3.1 Software Emulation Exception (0x01000)
An software emulation exception occurs as a result of one of the following conditions:
• When executing any unimplemented instruction, including all illegal and unimplemented
optional and floating-point instructions.
• When executing a mtspr or mfspr that specifies an on-core unimplemented register,
regardless of SPR[0].
• When executing a mtspr or mfspr that specifies an off-core unimplemented register and
SPR[0] = 0 or MSR[PR] = 0 (no program exception condition).

So, please run the board under debugger control and check, which particular instruction causes this error. If instruction looks correct, than this means hardware issue - the core reads correct instruction incorreclty due to some hardware reason. In this case please check basic things - reset configuration settings, clock settings, power supply quality, and etc.

Have a great day,
Alexander,
TIC

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mpc860 codewarrior debug issue

Re: mpc860 codewarrior debug issue