Keil5通过J-Link将程序下载至电路板的KE06Z64芯片(4M外部晶振)，弹出窗口提示Error：Flash Download failed - "Cortex-M0+"。
Keil5 downloads the program to ke06z64 chip (4m external crystal oscillator) of the circuit board through j-link, and a pop-up window prompts error: Flash download failed - "Cortex-M0 +".
My interface settings are as follows:
Jlink can read out IDCODE, the physical connection if fine. KE06 has SDK. Please download KE06 SDK from Welcome | MCUXpresso SDK Builder
There are lots of Keil example project in it. Please try these project.
Jlink has a software and tool pack. You can download from https://www.segger.com/downloads/jlink/JLink_Windows.exe
Use J-link commander, type "connect" to test connection.
If it shows the device is locked, type "unlock kinetis"