FAQ/039 KSM-500 - kProgram: What is happening when the following internal error occurs: ACRA ERROR :: Backplane placement failed.?
August 18, 2014Download PDF
ACRA WARNING :: could not generate K3 for ADC14_22_J4_Ch3@@0_575&&- 64&&0 starting at clock 2505 - expired at 2501 ACRA WARNING :: could not schedule all transfers in this pass. Closing file C:\ACRA\kProgram\CACHE\ACRA_STD_ASYS\KAM_00\FMT_00\f0971/mytest.q00 . Removing schedule file C:\ACRA\kProgram\CACHE\ACRA_STD_ASYS\KAM_00\FMT_00\f0971/ mytest.q00 (-S not specified) ACRA ERROR :: Backplane placement failed. Note: placement failure may be due to positioning of message parameters in the IRIG-106 frame (thread management). ACRA ERROR :: KFRONT returned an error ACRA ERROR :: KC could not successfully generate all controller EEPROM images
It means the parameter ADC14_22_J4_Ch3 cannot be scheduled on time according to its PCM placement. This parameter is coming from a slave chassis but kProgram is failing on the master (see.q00 with 00 being the chassis ID).
The issue here is not because the parameter should be placed later even if it can help the compilation but it’s certainly due to the slow read parameters placed before it. Try to arrange the parameters to follow the rules of PCM placement.
For further information please refer to “TEC/NOT/035 - Rules of PCM placement“.