Hi,
I am working on a secondary bootloader for the 54114 chip on a LPCXpresso5411x board. Everything works well when I use the debugger (Keil) or the flash magic to program the image. But the same image doesn't seem to work in the ISP mode. I have correctly set the valid image checksum using the ELFDWT.EXE tool and the image headers have been set to legacy mode.
Once I copy the .bin file in ISP mode (SW4 + SW2) and if I do a reset (SW4), the board remains in the ISP mode and never comes out unless I use the debugger or flash magic to re-flash it. As per the UM, the only requirement for a legacy image is that the checksum of the first 8 32-bit words of the image must add to 0x00000000. This criteria is being met in my application but still I am not able to get it work.
Any help or suggestion with respect to this issue would be deeply appreciated.
Thanks in advance.
Hi Siva Kumar,
Thank you for your interest in NXP LPC product, I would like to provide service for you.
Please tell me what the secondary bootloader you are using?
You said:Once I copy the .bin file in ISP mode.
Please tell me how you copy the .bin file, please give more details about your question, and attached your secondary bootloader which can reflect the problem, I need to check it on my side.
Waiting for your reply!
Have a great day,
Kerry
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