 Question:
Problems with bringing up the XDS510 emulator screen (PC)
Answer: If you have problems bringing up the XDS510 emulator screen on the PC, run
the XDS510 diagnostic utility available in our BBS (xdsdiag.exe). This utility provides
hints to the user on what could be wrong. The xdsdiag.exe file contains DOS and Sun
versions. Both versions will be able to work even in multi-processing systems.
If you want to attack the problem yourself, we suggest the
following steps:
- Review the installation guide step-by-step.
- Type "emurst" and observe if there is any error message:
If " cannot detect target power " then check the voltage level in the emulator
connector pins marked with +5v (refer to the Emulator Installation guide)
- If you receive the " cannot initialize the target "
message, then:
- Verify your cabling and target power
- Be sure that the device is not loose in the socket
- Be sure that TCKRET is connected (TCKRET is in fact the JTAG
clock)
- Try different values for the -p option (change simultaneously the
switches in the XDS510 emulator board)
- If you are debugging a multiprocessing system, are you using the
OS/2 version? Are you sure about the devices in your scan path? Have you set the variable
IOPL=YES in your config.sys?
- Verify that you are using the correct debugger given the silicon
release version (this information is provided under the emulator menu). Sometimes the
"scan path" device description changes between different device revs.
If the problem persists, you may have a system related issue:
- Try in a different computer. Some called "IBM
compatibles" are not in reality.
- Try using the XDS510 in a different AT slot within your computer
- Try removing other un-used cards from your computer. Disconnect it
from a network if necessary.
- Try to slow-down the PC. Some PC's offer a turbo switch (disable
it!)
- Try adding wait states to the I/O bus or slow-down its clock via
jumpers or the BIOS.
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