I have purchased "Evaluation Kit RE01 1500KB" and am trying to run the sample program according to the quick start guide.
When I connect to a PC via USB and try to debug with IAR Embededd Workbench, an error like the image appears. (I tried 4 times, but I couldn't get the CPU status.)
The emulator is not used, but the built-in J-Link OB is used.
I'm sorry for the introductory question, but thank you.
I believe J-Link OB (on board) supports only SWD, not JTAG.You should try once with sample projects got from the board product page. Some of them contain IAR projects.
You should also check connection to J-Link using GDB server (JLinkGDBServer.exe) in J-Link Software and Documentation pack.cf. https://www.segger.com/downloads/jlink/