Keil Logo Arm Logo

Connectors

Several target interfaces can be installed on the circuit board to access an ARM target system. You can physically plug in units, such as ULINKpro, to program, debug, and trace hardware systems.

The following units work in JTAG as well as in Serial Wire mode:

  • Cortex Debug Connector (10-pins, 0.05")
  • Cortex Debug+ETM Connector (20-pins, 0.05")
  • ARM Standard JTAG Connector (20-pins, 0.10")

Cortex Debug Connector (10-pins, 0.05")

This 10-pin Cortex Debug connector offers ITM and DWT trace information. Two pins (SWD) are used for debugging, where one bi-directional pin (SWDIO) is used to transfer the information and the second pin (SWDCLK) is used for the clock. A third pin (SWO) delivers the trace data at minimum system cost. The Serial Wire and JTAG pins are shared.

10-pin Cortex Debug Connector Pin Layout of 10-pin Cortex Debug Connector

Note

  • Position 7 has no pin and serves only as a key to properly orient the connector.
  • The 10-pin connector is a Samtec FTSH-105-01 connector with pin 7 removed. It's dimensions are: 0.25" x 0.188" (6.35mm x 4.78mm).

Cortex Debug+ETM Connector (20-pins, 0.05")

This connector offer debug features, ITM and DWT trace data, as well as ETM instruction trace. ETM signals are output on additional four pins (TRACEDATA[0..3]). A fifth pin is used for the trace clock (TRACECLK). This way, ETM can be used in either Serial Wire or JTAG mode. This connector is a super-set of the 10-pin Cortex Debug connector. The first 10 pins on both connectors are identical.

20-pin Cortex Debug+ETM Connector Pin Layout of Cortex Debug+ETM Connector

Note

  • Position 7 has no pin and serves only as a key to properly orient the connector.
  • The 20-pin connector is a Samtec FTSH-110-01 connector with pin 7 removed. It's dimensions are: 0.50" x 0.188" (12.70mm x 4.78mm).

ARM Standard JTAG Connector (20-pins, 0.10")

This JTAG connector delivers the same functionalities as the 10-pin Cortex Debug connector. Use a 20-to-20 pin cable adapter to connect to ULINKpro.

ARM Standard JTAG Connector

Note

  • Dimensions of the ARM JTAG connector are 1.29" x 0.722" (33mm x 18.5mm).

Keil logo

Arm logo
Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings