8 Precautions
22
Seiko Epson Corporation
S5U1C17001H USER MANUAL
(ICDMINI VER1.0 and VER1.1)
9 Troubleshooting
The following shows the problems attributable to the hardware:
Table 9.1 Troubleshooting
Symptom
Cause/remedy
The LED3 (EMU) that lit when the
S5U1C17001H was turned on does not go
out.
(1) Is the target system turned on?
g
Turn the target system on.
(2) Is the target system connected with the S5U1C17001H?
g
See Section 4.1, “Connecting the Target System,” and check to
see if the target system is connected correctly.
(3) Was the start up sequence correct?
g
See Section 5.2, “Activation in ICD Mode,” and start up in the
correct order.
The following message appears when the
debugger (gdb.exe) in the host computer is
invoked:
Cannot open ICD17 usb driver.
(1) Is the S5U1C17001H connected to the host computer correctly?
g
See Section 4.2, “Connecting to the Host Computer” and check
to see if the S5U1C17001H is connected to the host computer
correctly.
(2) Was the debugger (gdb.exe) restar ted after resetting the
S5U1C17001H while the debugger is running?
g
See Section 5.2, “Activation in ICD Mode,” and start up in the
correct order.
The following message suddenly appears
while the target program is being executed by
the debugger (gdb.exe) in the host computer:
Break by external break.
Program received signal SIGINT, Interrupt.
This problem is caused by low-level noise on the DSIO signal of the
target system or when the BRK IN pin goes GND level.
(1) Is the target system connected with a cable other than the supplied,
or is the supplied cable used with extension cables?
g
Use the supplied cable. If it cannot be used then use extension
cables that are as short as possible and shield them in order to
avoid occurrence of low-level noise on the DSIO signal.
(2) Is there any conductive material near the BRK IN pin?
g
Remove the conductive material.
The operation is unstable.
(1) Is the DSIO output level (SW4, SW5) set correctly?
g
See Section 3.1, “Left Side Panel,” and make sure that the setting
is correct.
(2) Is the target system connected with a cable other than the one
supplied, or is the supplied cable used with extension cables?
g
Use the supplied cable. If it cannot be used then use extension
cables that are as short as possible and shield them in order to
avoid occurrence of low-level noise on the DSIO signal.
