topic Re: Bootloader for MCF56F83763 VLH in Digital Signal Controllers

Bootloader for MCF56F83763 VLH

fasihahmed — Fri, 06 Dec 2019 12:11:21 GMT

Any one have the source code of bootloader for MCF56F83763?

I am also interested in its 'processor expert' setup

Re: Bootloader for MCF56F83763 VLH

mohammad_kamil — Mon, 09 Dec 2019 04:37:00 GMT

williamjiang2017‌ we have bootloader and PE for this device?

Re: Bootloader for MCF56F83763 VLH

xiangjun_rong — Mon, 09 Dec 2019 05:00:17 GMT

Hi, Fasih,

As a new feature, the MC56F83xxx has ROM bootloader, in other words, the bootloader code is integrated into on-chip ROM, but we do not provide the source code of the ROM bootloader, I am sorry for not helping you.

XiangJun Rong

Re: Bootloader for MCF56F83763 VLH

fasihahmed — Mon, 09 Dec 2019 08:49:05 GMT

Hi,

So does this mean if i want to make my own bootloader, I will have to flash it over the ROM bootloader or what? Do you have any documentation for this?

We have a custom bootloader made for MC56F82748 that we now want to port to MC56F83xxx .

What should be the steps I should take here? I know I have to use the PE but i dont have any reference code to do that because the LDD components are different.

xiangjun.rong‌

Re: Bootloader for MCF56F83763 VLH

xiangjun_rong — Tue, 10 Dec 2019 08:09:38 GMT

Hi, Fasih,

Of course, you can pass the ROM bootloader and use your own bootloader.

When you develop your own bootloader, there is a file called flash_config.c

you can modify the NV_FOPT element as 0x3F in uint8_t _flash_config_field[] array, after power up, the ROM bootloader will be passed, the PC will point to P:0x00 and execute from reset vector P:0x00.

In this way, you can jump to your own bootloader from P:0x00, which is the same as that of MC56F827xx.

For detailed inf, pls refer to Chapter 6 ROM Bootloader in RM of MC56F83xxx

Hope it can help you

Xiangjun Rong