Communication error while accessing MDM-AP (S9KEAZN8AMFKR)

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Communication error while accessing MDM-AP (S9KEAZN8AMFKR)

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Contributor I

I am trying to flash and check the contents of the flash memory of an S9KEAZN8AMFKR.

I connected pin 3 to 3.3V, pin 4 to GND, pin 22 to SWD_CLK (with a 10k pull down), pin 23 to RESET, and pin 24 to SWD_DIO.

But when I try to connect to the MCU, it encounter this.

1. Using J-Link Mini EDU, I encountered this.

- Connecting via USB to probe/ programmer device 0
- Probe/ Programmer firmware: J-Link EDU Mini V1 compiled Mar 14 2024 13:18:10
- Probe/ Programmer S/N: 801055094
- Device "S9KEAZN8XXXX" selected.
- Target interface speed: 4000 kHz (Fixed)
- VTarget = 3.288V
- InitTarget()
- SWD selected. Executing JTAG -> SWD switching sequence.
- Connect Under Reset
- SWD selected. Executing JTAG -> SWD switching sequence.
- Communication error while accessing MDM-AP.
- Connect Under Reset
- InitTarget()
- SWD selected. Executing JTAG -> SWD switching sequence.
- Connect Under Reset
- SWD selected. Executing JTAG -> SWD switching sequence.
- Communication error while accessing MDM-AP.
- Connect Under Reset
- ERROR: InitTarget(): PCode returned with error code -1

- ERROR: Failed to connect.
Could not establish a connection to target.
- ERROR: Connect failed

 

2. Using PEmicro Multilink-LC, I encountered this.

- Can't communicate with the target processor! Please check your connections between the cable and the target and make sure the target has power.

 

I checked all the connections and they are good. 

Can someone please advise.

 

Thanks!

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_Leo_
NXP TechSupport
NXP TechSupport

Hi,

Thank you so much for your interest in our products and for using our community.

Please refer to the 2.1.5.3 Debug interface section from KQRUG Kinetis K Quick Reference User Guide or also you can take as reference the debug interface from any of the KEA EVKs.

Hope it helps you.

Have a nice day!

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