TMS320F280041C: LFU over CAN

Milan Joshi

Hi Team,

I am dealing with a similar situation of firmware upgrade for F280049C and F280041C over CAN.

I have gone through several docs "Live Firmware Update With/Without Device Reset on C2000 MCUs" and "Software Controlled Firmware upgrade"

I have below questions on which I need guidance. Current implementation uses zero boot pins = flash boot mode.

a) As per ""Live Firmware Update With/Without Device Reset on C2000 MCUs" doc there is a need to have one free peripheral over which the host can send new firmware image. The doc explains the same using SCI interface. Is it possible to modify the same with CAN interface to receive the new firmware image and write it to flash ?

b) As per software-controlled firmware upgrade, is it possible to set CAN boot mode (upon receiving some command over CAN from the host whenever FW upgrade is required) just to receive the new image from host -> write it to flash-> and then set boo mode to flashboot.

Which is the best way to do the firmware upgrade using CAN and then boot from flash?

I appreciate your help in advance.

over 4 years ago

0 Sira Rao80 over 4 years ago

TI__Mastermind 27895 points

Milan,

a) Yes, you can certainly do this.

b) I'll have to check on this and get back to you.

Thanks,

Sira

0 Milan Joshi over 4 years ago in reply to Sira Rao80

Prodigy 20 points

Thanks, Sira.

It would be helpful if you can help me to derive the optimal solution.

Is it possible to receive the new firmware image over can in while the main application is running -> access the flash sectors to write the new image and then reboot???

0 Sira Rao80 over 4 years ago in reply to Milan Joshi

TI__Mastermind 27895 points

Milan, like I said, for CAN I'll have to check and get back to you.

0 Anu Biradar over 4 years ago in reply to Sira Rao80

TI__Expert 5630 points

Milan,

You can call the CAN_Boot bootloader function in your application if a FW upgrade request is received, this would call the CAN bootloader in ROM to write an image (secondary bootloader) into RAM. You can you this image to then write the new firmware into Flash -- the ROM bootloader cannot directly write to Flash. Once the image is written, you can reset the device and it should go to Flash boot if you are using the zero boot pin configuration.

Thanks

Anu

0 Milan Joshi over 4 years ago in reply to Anu Biradar

Prodigy 20 points

Thank you so much Anu Biradar.

0 Anu Biradar over 4 years ago in reply to Milan Joshi

TI__Expert 5630 points

Milan,

Can I consider this post closed? Do you have any further questions?

Thanks

Anu

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TMS320F280041C: LFU over CAN