MPC5xxxのトピックRe: Seeking code for MPC5646C bootloader

Seeking code for MPC5646C bootloader

JasonTT — Tue, 27 Aug 2024 15:34:37 GMT

Hello NXP Community,

I’m new to MCU and have just started with the MPC5646C and CodeWarrior 11.1. I’ve been searching but haven’t been able to find code for bootloader described on Reference Manual CH.5 that handles searching the boot sector, configuring the 4KB MMU TLB, and setting the instruction pointer to the boot vector address. Is there any way to view the code, or any instruction available on how to implement it?

Any help would be greatly appreciated!

Thanks

Re: Seeking code for MPC5646C bootloader

lukaszadrapa — Wed, 28 Aug 2024 08:09:38 GMT

Hi @JasonTT

You are talking about BAM (Boot Assist Module). There's ROM microcode stored inside the device which does all described operations during reset. It can't be modified by user, we do not provide the source code. The description in chapter 5 should be sufficient.

Regards,

Lukas

Re: Seeking code for MPC5646C bootloader

JasonTT — Thu, 29 Aug 2024 01:04:18 GMT

Sure thing, thank you for your quick respond.