Keil™, An ARM® Company

ULINK®2 User's Guide

USB-JTAG Adapter

Target Driver Setup - ULINK2 AdapterThe ULINK2 USB-JTAG Adapter section displays driver, device and firmware information about your ULINK2 adapter.

The Serial No: displays the serial number of a ULINK2 adapter. When more than one ULINK2 adapter is connected, use the drop-down list to select the ULINK2 adapter.

The Max JTAG Clock drop-down list sets the highest JTAG clock rate used to communicate to the target board.

Note:

  • ULINK2 supports the Return Clock (RTCK) pin available on most ARM7 and ARM9 devices. The RTCK signal adjusts the JTAG clock speed to the highest possible rate for that device. Selecting RTCK from the Max JTAG Clock drop-down list enables this feature.
  • The RTCK selection may only be used with devices that provide the RTCK pin.