HOW READ AND WRIT LPC2129

[angelormonteiro]

Hello! 
I´m Trying to Read (Connect) LPC2129 using a J-Link V9 and i just have this massages bellow:

Application log started
- J-Flash V7.96p (J-Flash compiled Jun 27 2024 16:02:07)
- JLinkARM.dll V7.96p (DLL compiled Jun 27 2024 16:01:41)
Reading flash device list [C:\Program Files\SEGGER\JLink_V796p\ETC/JFlash/Flash.csv] ...
- List of flash devices read successfully (451 Devices)
Reading MCU device list ...
- List of MCU devices read successfully (11229 Devices)
Opening project file [C:\Users\PainelJET\Desktop\EVNRUDE TESTE.jflash] ...
- Project opened successfully
No data file specified!
Failed to open data file [C:\Users\PainelJET\Desktop\]...
Probe/ Programmer firmware: J-Link V9 compiled May 7 2021 16:26:12
Probe/ Programmer S/N: 69667549
Reading entire flash chip ...
- Connecting ...
- ERROR: Failed to connect.
Could not perform custom init sequence.
- ERROR: Connect failed
- ERROR: Could not read target memory, not connected

Can some one help me?

[Harry_Zhang]

Hi @angelormonteiro 

You can check the following issues.

1. Check Connections:
• Ensure that all physical connections are secure.
• Double-check the wiring and pinout connections between the J-Link and the LPC2129.
2. Power Supply:
• Verify that the target board is properly powered.
• Measure the voltage to ensure it’s within the acceptable range for the LPC2129.
3. Correct Device Selection:
• Ensure that you have selected the correct device in the J-Flash project settings.
• Go to Project > Project Settings > CPU and confirm that the LPC2129 is selected.
4. Reset Pin:
• Ensure that the reset pin is correctly connected.
• Sometimes, manually holding the reset pin low while connecting can help.
5. Firmware Update:
• Make sure the firmware of your J-Link is up to date. You can update it using the J-Link Configurator tool.
6. Software Version:
• Ensure that you are using the latest version of J-Flash and JLinkARM.dll.
7. JTAG/SWD Mode:
• Verify that the correct mode (JTAG or SWD) is selected and matches the configuration of your target MCU.
8. Custom Init Sequence:
• If you have a custom init sequence, double-check it for any errors. You might want to temporarily disable it to see if the issue persists.

Hope this will help you.

BR

Hang

[angelormonteiro]

Hello, I would like to know if, besides the J-Link, I need anything else to read the LPC2129. Maybe something like a base with resistors or something similar, in addition to the J-Link. Would that be necessary?

[Harry_Zhang]

Hi @angelormonteiro 

If you are only reading the LPC2129, you only need jlink and not anything else.

Hope this will help you.

BR

Hang