Trouble Shooting - Fujitsu MB88121 SERIES User Manual

7 Trouble shooting

Problem
Starter kit does not power-on correctly.
Some or all of the power LEDs (D24, D30,
D34, and D40) do not lit up.
Starter kit stays in reset.
LED D18 (Reset indicator) lights up
permanently.
The communication
Workbench to the evaluation board fails
(Communication errors)
The windows of the debugger are empty.
When trying to program the application to
the embedded flash, the programmer
stops at first address with "loading error" !
Hardware units such as LEDs, user
buttons, UART are not working.
LCD at parallel LCD port does not work
Graphic sub-board does not work
FMEMCU-UG-910017-11
SK-91F467-FLEXRAY V1.1
Trouble shooting
Solution
Check voltage supply and jumpers :
The voltage on DC-Power plug should be in the
range of 9-12V. The plug should have + on shield
and – on the centre. The power supply should be
able to supply at least 500mA. To support both, the
"SK-91F467D-208PFV" and a graphic sub-board
the supply should be able to supply 1500mA.
* The LEDs should light up after switching on the
board. Use a multimeter to see whether 5V,3.3V,
2.5V and 1.8V are present on the Vcc/GND test
measurement points J21, J22, J23 and J24.
Check jumper positions according to chapter 2.1
Remove all user extensions of the starter kit
LED D18 (Reset) should flash. If D18 lights up
permanently, the voltage is too low - Increase the
voltage supply and check available supply current
to solve the problem.
Remove all user extensions on the board to avoid
any shortcuts or leakage current!
from Softune
Make sure your COM-port number and the baud
rate
introduction). The default COM-port is 1 and the
default baud rate is 57K6Baud.
Make sure no other programs are using the same
COM-port on your PC. Close all other applications
(e.g. Flash programmer utilities, terminals etc.)
* Check if RTS/CTS is closed on the CPU module
(check jumper JP58, 60, 65 are closed).
* Use only a RS232 extension 1:1 cable
* This is due to wrong (maybe old) file path
information. Closing all windows in the debugger
and re-open should fix the problem.
* You are probably trying to program a program to
the flash which is linked for the external RAM area.
Check for details the linker memory map and the
linker output mapping file *.mp1 file.
Make sure you have enabled these units on the
evaluation board using the appropriate jumpers.
See the provided examples and the hardware
manual for information on how to control the
peripherals.
Adjust the potentiometer RP1 to adjust contrast
of LCD. Remove resistor network RN3
Check power supply 9-12V/1500mA. Reduce
external bus clock frequency
Table 7-1: Trouble shooting
- 64 -
settings are correct
© Fujitsu Microelectronics Europe GmbH
(see debugger