[Scope of application]
ARM Cortex
[Error message]
ICE Error No.F4D: Time-out waiting for execution of CoreSight ACK.
[Workaround]
- This error occurs when access to the address, not belonging to any region while Memory Protection Unit turned on.
Set the region 0 to cover all address area.
- May access to the address, which is not concluding bus cycle.
Do not access to the address not concluding bus cycle.
- MPU may turn to sleep mode during the debug.
Check the power and clock to MPU.
[Cause]
This error is output when one of the DAP internal bus, APB bus or AHB bus communication is not completed within a certain time.
This error occurs only for Cortex core.