LPC MicrocontrollersのトピックRe: Jlink configuration for LPC2478

Jlink configuration for LPC2478

Usefi5961 — Mon, 09 Dec 2024 15:29:47 GMT

hello everyone:

Does anyone help me for setting segger jlink for reading and programming LPC2478 .because I can't read and program this arm7.speed setting clock and address setting and all true parameters for jlink (all project setting parameters)

Thanks.

Re: Jlink configuration for LPC2478

Pavel_Hernandez — Mon, 09 Dec 2024 20:49:59 GMT

Hello, my name is Pavel, and I will be supporting your case, if you are using the J-Link I recommend download the J-Link commander on this you could be able to flash the MCU.

Best regards,
Pavel

Re: Jlink configuration for LPC2478

Usefi5961 — Mon, 09 Dec 2024 21:25:23 GMT

Thank you very much for reply ,I try to download commander but how use it and set up configuration can you please more detail.

Thanks.

Re: Jlink configuration for LPC2478

Pavel_Hernandez — Wed, 11 Dec 2024 01:47:46 GMT

Hello, maybe this thread could help you on it.

Unlocking and Erasing FLASH with Segger J-Link | MCU on Eclipse

there is a section about the Jlink commander and other options.

Best regards,
Pavel

Re: Jlink configuration for LPC2478

Usefi5961 — Wed, 11 Dec 2024 04:32:29 GMT

Dear pavel:

Thank you very much for reply,how can I know the chip is encrypted?I only have one of these sample boards that is ok and working and I don't want it to be damaged. First, I need to read and creat backup file,I want know is it locked or not, and then program the defective board.
Thanks.

Re: Jlink configuration for LPC2478

Pavel_Hernandez — Fri, 13 Dec 2024 00:12:10 GMT

Hello, oh ok, to know if the MCU is locked, I recommend use the blhost and put the command.

blhost -t 2000 -p COM -j -- get-property 11

• 0x11 Flash Security Enabled Flag - Boolean indicating whether flash security is enabled. 0 means disabled; 1 means enabled.

And I'm not sure if the backup that you want to do is from read-back from the MCU, if yes with the blhost could read part of the flash.

chapter 4.2.7 read-memory.

MCUBLHOSTUG.pdf

Best regards,
Pavel

Re: Jlink configuration for LPC2478

Usefi5961 — Sun, 15 Dec 2024 14:32:04 GMT

Thank you very much for reply,sorry I don't underestand what do you say,can more detail?step by step.

Thanks.

Re: Jlink configuration for LPC2478

Pavel_Hernandez — Mon, 16 Dec 2024 22:46:26 GMT

Hello, you could install SPSDK if you wanted [Installation Guide — SPSDK documentation].

Push the bottom of ISP then put the cable USB to the PC.
blhost -p COMxx get-property 1

The first command is to check the communication.

blhost -p COMxx get-property 11

Response status = 0 (0x0) Success.
Response word 1 = 512 (0x200)
Max Packet Size = 512 B
Security State = UNSECURE

blhost -p COMxx flash-erase-all

Do a mass erase.

blhost -p COMxx write-memory 0 C:\root_example\Debug\led_blinky.bin

The flashing was done.
Remove the ISP jumper and reset your device.

Best regards,
Pavel