There is mistake in my program: after switching to a new clock CPU don't work and DAP (JTAG/SWD) too - I can't neither erase the internal flash, nor write new program. It is necessary to stop CPU after release of reset and before starting of the wrong program. How to make it?
I use LPC-Link2 and my MCU is LPC4337.
Now I solved this problem: P2_7 = LOW and BOOTLOADER works in ISP mode - in this mode my program with an error is not launched and I could erase flash. But how to solve this problem with the help of the debugger of LPC-Link2?