TMS320F28069M: Where to find or make a CAN Bootloader/flash programmer

Dear Anu, 

I have seen the CAN flash Kernel. I am currently looking at how the serial_flash_programmer works with the SCI Flash Kernel to understand what is happening exactly. And I am also studying the diffrence between the SCI flash kernel and CAN flash kernel to see what has to be done. But I am not really shure what I should do about the serial_flash_programmer to make it into a can_flash_programmer. Looking forward seeing your suggestions. 

I accidently clicked the this resolved my issue button on your reply but it is not yet resolved so please ignore that.

Thanks,
Guilliam

Guilliam, 

For the host side programmer, it is recommended to look at 3P tools that offer8 solutions. You can look at this link: https://www.ti.com/tool/C2000-3P-SEARCH

In addition, Elprotronic has flash programmers that can be used with C2000 devices. You can look through their offerings here: https://www.elprotronic.com/

Thanks, 

Anu

I don't quite think this is what I am looking for.
I am just trying to find a lead or example of how to make a CAN flash programmer.

We have our Driveline PCB which contains 2 TMS320F28069M controllers. This PCB is connected to a STM controller through a CAN connector. This STM controller is in its turn connected to our main board controlled by a Intel atom processor. My task is to find out how we can make our Driveline PCB remote updatable. Currently our STM controller send the CAN messages to the PCB with the motorcontrollers.

But what I now want to understand is what should be done to make the CAN flash kernel work on the board so that the new firmware can be downloaded on to the board so that we don't have to do this manually anymore with the XDS110 debug probe. I think I can find out the rest with the team. Hope I made my problem a bit more clear and I'm looking forward hearing from you.

Update: 
The last 2 days I have been studying and researching the differences between the SCI and CAN flash kernels. I have found out that most of the differences are not that important for what I want to accomplish since those are primarily init differences and checks to set the controller itself in the correct state with the registers and all. But I found out that the thing we use the flash kernels for: the getworddata functions which read in the data blocks of the programm desired to download onto the device are also quite the same. The only diffrence I found was that in de SCI_GetWordData the LSB and MSB are being verified back to the host. But in the SCI_GetOnlyWordData which is used by the SCI_Boot() this step of verifying is skipped so the same as the CAN_GetWordData. The other diffrence I found is that in the SCI_GetOnlyWordData the checksum is updated as followed: 

This checksum is used a couple times in the serial_flash_programmer. But this is not used by the CAN Flash kernel ofcourse. 

The last diffrence is that in the CAN_GetWordData the last step before returning the wordData all the RMPn bits are cleared.

So my question now is following my research and finding out the diffrences in the kernels, how could I transform the serial_flash_programmer to a can_flash_programmer? Because it seems like the flash_programmer itself only reads from the kernel file and writes from the application file. But this should be the same for every file and it does not specifically only read SCI files (I could be wrong by overseeing something please let me know than.). Looking forward hearing your opinion on my research and a possible solution.

Thanks,
Guilliam

Guilliam, 

The serial flash programmer parses a hex file created with the SCI8 format and sends it to the target device. The hex utility creates the CAN and SCI hex files in the same way, check table 12-1 of https://www.ti.com/lit/ug/spru513w/spru513w.pdf.  In order to change the serial flash programmer into a CAN flash programmer, you would need to send the hex file in a manner that is compatible with the ECAN module function calls made in the flash kernel. The host programmer would likely need to format and send CAN frames that can be read in by the F2806x device. You could try modifying f05_DownloadImage.cpp used for the serial flash programmer for F2806x. You are correct in noting that the CAN flash kernel does need checksums or bytes verified back to the host. The flash kernel itself is a modification of the CAN bootloader in ROM, so this is likely where that comes from. 

Codeskin has flash programming tools that can help facilitate firmware updates via CAN, and part of their CAN utility is open source, that may also be a resource worth checking out: https://www.codeskin.com/opensource 

Thanks, 

Anu

Hello Anu,

Thanks you very much for all the information. I'm going to try what you have suggested and I will look into your advised documents. 

Thanks,
Guilliam

Hi Guilliam, 

Sure, let me know if you have questions. 

Thanks,

Anu