CONNECTION ISSUES WITH ULINK AND XC161 AC STEP
Applies to: ULINK USB-JTAG Debugger
Information in this article applies to:
- ULINK USB-JTAG Adapter
- ULINK2 USB-JTAG Adapter
I am having trouble connecting to an XC161 (AC Step) with Keil
ULINK USB-JTAG Adapter. The link is working with an Infineon XC161
Starter Kit (AB Step).
In many cases, this is caused by one of the following circuit
Pull-up resistors on the OCDS interface should be 100KOhm.
Refer to Debugging
with XC16x for more information.
External reset logic sometimes confuses the power-up sequence
generated by ULINK. We recommend that you bypass ICs that could
interfere with the Reset Signal from OCDS to the XC16x device.
The Connector Pinout drawing in the manual marks VDD as
optional. However, supply voltage should be available. If your
board does not provide VDD on this pin you may set the VDD jumper
inside ULINK to +3.3V and ULINK will provide it for you.
Article last edited on: 2007-07-02 14:13:20
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