topic Re: S12X, How to used msCAN in bootloader in S12 / MagniV Microcontrollers

S12X, How to used msCAN in bootloader

koauts — Mon, 20 Nov 2023 05:45:50 GMT

hello Sir,

Implemented a serial bootloader on S12XS64 with reference to AN4258 and SW.

Next, I would like to know whether CAN communication is possible by adding CAN to the application and how to implement it.

I would like some help with this technique.

Alternatively, I would like to know if it is possible to implement a serial bootloader using Process Expert.

Re: S12X, How to used msCAN in bootloader

lama — Mon, 20 Nov 2023 09:07:31 GMT

Hi,

There is no AN which implement CAN bootloader. However it is still a serial communication so you can use any CAN example code and cover it with your higher level communication protocol.

( https://community.nxp.com/t5/S12-MagniV-Microcontrollers/LAMA-s-S12XE-unofficial-examples/ta-p/1100774 )

The main problem to create an example is the programmer site which requires some code on PC side or any protocol translator/interface if you use another protocol on physical line (for example UART/CAN/UART, USB/CAN/USB, ….)

The philosophy of data processing and the programming algorithm remain the same.

There is, however, AN2546 (search for it in link presented bellow) which can provide you some more info but it was designed for old families. I mention it only for inspiration.

https://community.nxp.com/t5/S12-MagniV-Microcontrollers/List-of-MagniV-and-S12-X-Application-notes/ta-p/1120728

Best regards,

Ladislav

Re: S12X, How to used msCAN in bootloader

koauts — Tue, 27 Feb 2024 00:06:42 GMT

hello
Recently, I couldn't work due to work.

Can you please tell me a CAN example that I can use for the bootloader example?