I am always grateful for your help.
As shown in the example of FRDM-KE06 SDK SPI (SDK_2.6.0_MKE04Z128xxx4 \ boards \ frdmke06z \ driver_examples \ spi \ interrupt_b2b_transfer \ master \ iar),
I connected J4 connector pins 3 and 5 of the FRDM board, and it worked well .
The following was displayed on the console:
Master start ...
success
This is easy to understand.
Thank you very much.
jun (Natori City, Miyagi Prefecture, Japan)