CoLinkEx_V1.1 User Manual - CooCox

5. How to use CoLinkEx to debug other devices5.1 ARM SW/JTAG InterfaceCoLinkEx’J4 is compatible with standard ARM 20 PIN SW/JTAG Interface; J2 and J3 arecompatible with the standard ARM 10 PIN SW/JTAG Interface.5.2 Connection methodIf your board doesn’t have the debug interface which CoLinkEx supported, you need toconnect the necessary pin by yourself. You can refer to the following table:Pin Function10-PIN SW/JTAG Interface 20-PIN SW/JTAG InterfaceVCC (Optional) 1 1SWDIO/TMS 2 7SWCLK/TCLK 4 9SWO/TDO (Optional) 6 13NC/TDI 8 5RESET 10 15GND 3,5,9 4,6,…20Note:1) If you don’t use CoLinkEx to supply voltage to target board, VCC can be notconnected.2) If you don’t need to use Trace function, SWO can be not connected.3) In SW debug, SWDIO, SWCLK, RESET, GND are necessary. In JTAG debug, all theabove pins except VCC are necessary.21