My project can be flashed into RM57l843 development target board by CCS. Because I modified some MPU configuration, maybe it has something error of MPU configuration. Now, my project can't flash into RM57 development target board by CCS. when flashing by CCS, error prompt will pop up. It display "Error connecting to the target ; (Error - 1170 @ 0x0) Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 6.0.14.5)"
If I used SEGGER J-Flash V5.10 to connect my target board. There is also error prompt is poping up. "Could not detect CPU clock speed. Readback of test code downloaded into RAM failed. Failed to measure CPU clock frequency Could not start CPU core. (ErrorCode : -1) Failed to connect. Could not determine CPU clock frequency."
How I can recover my target to normal? What can I do for normally flashing my target board? Help !!!!