TMS320F28075: migration to 28075

Hello,

r sundar1 said:

Can TI provide a step by step guide to migrate a typical TI DigitalPower project from 280049 to 28075 (or 28076)?

There is no user's guide for this unfortunately, but what you can do is load your device configurations for the F280049 device into the SysConfig tool (this requires C2000Ware) and then migrate to the F28075/6 device using the 'Switch' option above the Board View to change the device. This tool will attempt to assign the same options to the F28075 and will create appropriate warnings/errors when a pin option or configuration cannot be transposed.

r sundar1 said:

Also, is there a reference hardware design for 28075 presently available?

All designs provided by TI are shown on the product page for the device, unfortunately if it's not there that means we do not support it.

r sundar1 said:

Do NOT want to migrate to 2837x for numerous reasons, at least till the 28075 design is fully validated.

I'm a little confused by what you mean by this; are you talking about validation of the design from your side or from the side of TI? Just as a note, the F2837xD superset device can be used to validate designs for the F2807x, since the three devices F2807x, F2837xS, and F2837xD are variants of the same core device. If you have concerns, you can review the device comparison tables of each device's datasheet to verify what items relevant to your design vary across the different types.

Best regards,

Omer Amir

Hi Omer, thanks so much for the speedy response, much appreciated.

Regarding the confusion on using 2837x, design validation for conversion to 07x from our side, not from TI.

We basically need a part with 280049 functionality (already verified with our hardware), but with built-in USB.

We are steering away from the 37xD family due to cost and complexity (for example, BGA vs LQFP, don't need dual core..).

However, it looks like the 100 pin 377S part is available from TI's own stock, so please comment if the 377S is better option than the 2807x? The cost difference is small and manageable.

Is the 377s also obsolete like the 07x, when it comes to supporting hardware, etc.?

If the 377S is the right choice, then we need help for migration from 280049, we can avoid migration to 28075.

Is it possible to get a more detailed, granular, step by step instruction for using CCS 10.4 to "switch" device used in a project from 280049 to 28377S or 28075?

Both are 100 pin parts.

Hope this is not causing more confusion!

Hello,

r sundar1 said:

However, it looks like the 100 pin 377S part is available from TI's own stock, so please comment if the 377S is better option than the 2807x? The cost difference is small and manageable.

For the most part, the F2837xS is equivalent or better than the F2807x. You can look at the Device Comparison table in their respective datasheets to see exact details, but if you have questions about a specific performance target or peripheral let me know.

r sundar1 said:

Is the 377s also obsolete like the 07x, when it comes to supporting hardware, etc.?

In the sense that we don't provide reference designs for the F2837xS or F2807x, yes. I'm not aware of any device that is 'obsolete' in C2000 in the traditional sense, but we can't support creating reference designs for every device we release. Can you clarify what you mean by hardware support here?

r sundar1 said:

If the 377S is the right choice, then we need help for migration from 280049, we can avoid migration to 28075.

Is it possible to get a more detailed, granular, step by step instruction for using CCS 10.4 to "switch" device used in a project from 280049 to 28377S or 28075?

Both are 100 pin parts.

I recommend using SysConfig, as I mentioned before. We don't have a guide for migrating some devices to other devices (in this case the F28004x to the F2837xS), but if you load your configurations into SysConfig and switch the device, the tool will tell you any problems that may occur and changes you will need to make. You can watch the migration video in this video series for more explanation.

Best regards,

Omer Amir

Hi Omer, Thanks for the answers.

Thanks for the video link to SysConfig!

The sysconfig tool may be enough to carry out migration of software. We will let TI know after we go through the migration process.

The hardware migration is still to be resolved. Hence the query regarding supporting hardware.

For example, we were able to use the hardware files of the 280049 daughter card, made available by TI, as reference to create our own hardware design with high confidence it'd work.

The 28075 had a daughter card made by TI, but no longer available.

If there's any such reference hardware design for the 374/5/6/7S, it'd be a big help.

The 379D daughter card hardware design may not be of much use when it comes to the S parts with 100 pin packages. Please comment.

Thanks!

Hello,

Any supporting hardware which exists can be found in ti.com. If it's not there, then none exists. If you wish to test the capabilities, you will need to use the hardware which is available. This is a limitation I understand, but this is what is available. There is no future plan to add more supporting hardware for this device as far as I am aware.

Best regards,

Omer Amir