MPC5xxxのトピックRe: RAppID Boot Loader

RAppID Boot Loader

MichaelSun — Tue, 14 Feb 2023 08:01:38 GMT

Hi Support team,

I'm using MPC56xx. I want to develop my own 2nd bootloader instead of RAppID BL. Is there any document decribe how to do this?

Re: RAppID Boot Loader

petervlna — Wed, 15 Feb 2023 07:34:48 GMT

Hello,

Similar questions has been already discussed in the following thread:

https://community.nxp.com/t5/MPC5xxx/Serial-bootloader-example-for-MPC5634M/m-p/445273

example code:

https://community.nxp.com/servlet/JiveServlet/download/427962-279359/bootloader.zip

Best regards,

Peter

Re: RAppID Boot Loader

MichaelSun — Wed, 15 Feb 2023 08:56:11 GMT

Thanks for your response. I guess i didn't express my question clearly.

Now i'm using RappID bootloader utility to download/erase/read memory. I have seen there is a file named "MPC5604B.rba" which is loaded to sram then execute . I want to change this file to implement my own function. Ex: read only 8byte specific memory. But i don't know how to do it.

As the first step, i want to use UART Bootloader to load a LED Blink program into the SRAM and execute it. Could you please give me any advice ?

Re: RAppID Boot Loader

petervlna — Thu, 16 Feb 2023 13:22:59 GMT

Hello,

Looks to me that you missunderstood how the bootloader works.

In rba file you specify the binary file which will be loaded into micro.

file:///C:/Users/nxa13250/Downloads/RAppidBL_UserManual.pdf

Please have closer a look at chapter 4.2 Boot loader Configuration File (*.rbl) Format

Best regards,

Peter

Re: RAppID Boot Loader

MichaelSun — Fri, 17 Feb 2023 01:05:56 GMT

"In rba file you specify the binary file which will be loaded into micro. " Yes, i understand this.

Now what i want to do is to change the rba file to my own application. The rba file i have now is the default one you provided. I want to know how to develop my own rba file. I cannot find any document describe this.

Re: RAppID Boot Loader

petervlna — Mon, 20 Feb 2023 10:51:38 GMT

Hello,

petervlna_0-1676889234410.png

We do not support any modification to the rba file as it is specific for each micro. We also do not provide rba or rbf source codes.

I am not sure if I understand you correctly, but changing rba file will only lead to no communication with device.

The communication interface is selected automatically based on what is connected and based on boot pin configurations of micro.

Please read the above provided bootloader document carefully.

Best regards,

Peter