Troubleshooting - Epson S5U1C33001H1400 Manual

11. TROUBLESHOOTING

11. TROUBLESHOOTING
The following shows the problems attributable to the hardware:
After power is supplied to the S5U1C33001H via USB, the
LED2 (EMU) does not change to ICD mode (blue).
The following message appears when the debugger
(gdb.exe) in the host computer is invoked:
Cannot open ICD33 usb driver
The following message will appear suddenly when the
target program is executed using the debugger (gdb.exe)
in the host computer:
Break by external break.
Program received signal SIGINT, Interrupt.
The bus trace function is enabled, but trace information
cannot be obtained at all.
The operation is unstable.
42
Table 9 Troubleshooting
Symptom
(1) Does the LED2 (EMU) remain lit in yellow?
→ See the "Connecting the S5U1C33001H and the
host computer" section in this manual. Install the USB
driver.
(2) Does the LED2 (EMU) remain lit in red?
→ See the "Connecting the target system" section in
this manual. Connect the S5U1C33001H to the target
system, then press the RESET/START button.
(3) Is the LED2 (EMU) flashing in red?
→ Recheck the connection procedure.
(1) Are the host computer and the S5U1C33001H
connected correctly?
→ See the "Connecting the S5U1C33001H and the
host computer" section in this manual and check the
connection.
(2) Was the debugger (gdb.exe) restarted after resetting
the S5U1C33001H while the debugger is running?
→ See the "Method of invoking ICD mode" section in
this manual and restart according to the procedure
specified.
This problem can be generated when low noise enters the
DSIO signal of the target system or the BRK IN pin
changes to GND level.
(1) Is the target system connected with the provided
cable? Is the provided cable connected without using
an extension cable?
→ Use only the provided cable. If this cable cannot be
used for some reason, connect the target system
directly to the S5U1C33001H using the shortest cable
possible.
(2) Are there any electrically conductive items located
near the BRK IN pin?
→ Keep electrically conductive items away from the
BRK IN pin.
(1) Is the 30-pin coaxial cable connected to the target
system?
→ Use the 30-pin coaxial cable. The product package
does not include a 30-pin cable. Please contact us if
you need a 30-pin cable.
(1) Is the DSIO signal level (SW4 and 5) set correctly?
→ See the "Right-side panel" section in this manual
and check the setting.
(2) Is the target system connected with the provided
cable? Is the provided cable connected without using
an extension cable?
→ Use only the provided cable. If this cable cannot be
used for some reason, connect the target system
directly to the S5U1C33001H using the shortest cable
possible.
EPSON
S5U1C33001H1400 Manual (Rev. 0.20)
Cause/remedy
S1C33 Family In-Circuit Debugger