Technical data

3 PPCBug Firmware
MVME51005E Single Board Computer Installation and Use (6806800A38B)
35
In order to use the diagnostics, you must switch to the diagnostic directory. You may switch
between directories by using the SD (Switch Directories) command. You may view a list of the
commands in the directory that you are currently in by using the HE (Help) command.
If you are in the debugger directory, the debugger prompt
PPC6-Bug> is displayed, and all of the
debugger commands are available. Diagnostics commands cannot be entered at the PPC6-
Bug> prompt.
If you are in the diagnostic directory, the diagnostic prompt
PPC6-Diag> is displayed, and all of
the debugger and diagnostic commands are available.
PPCBug’s diagnostic test groups are listed in Table 3-2. Note that not all tests are performed
on the MVME5100. Using the HE command, you can list the diagnostic routines available in
each test group. Refer to the PPCBug Diagnostics Manual, listed in Appendix D, Related
Documentation for complete descriptions of the diagnostic routines and instructions on how to
invoke them.
Table 3-2. Diagnostic Test Groups
Test Group Description
EPIC EPIC Timers Test
PHB PCI Bridge Revision Test
RAM RAM Tests (various)
HOSTDMA DMA Transfer Test
RTC MK48Txx Real Time Clock Tests
UART Serial Input/Output Tests (Register, IRQ, Baud, & Loopback)
Z8536 Z8536 Counter/Timer Tests*
SCC Serial Communications Controller (Z85C230) Tests*
PAR8730x Parallel Interface (PC8730x) Test*
KBD8730x PC8730x Keyboard/Mouse Tests*
ISABRDGE PCI/ISA Bridge Tests (Register Access & IRQ)
VME3 VME3 Tests (Register Read & Register Walking Bit)
DEC DEC21x43 Ethernet Controller Tests
CL1283 Parallel Interface (CL1283) Tests*