AURIX™ Forum Discussions

[User12775]

I have a TC2X5 Application Kit, which has a TC275 chip mounted.

The full mark of the chip is " SAK TC275T - 64 F200W CA ".

Then which step of this chip belongs to?

I have read the "AURIX™ TC27x variants Data Sheet Addendum", which list four variants of the TC275T:

• 1. Variants BC Step
  
• 2. Variants CA Step
  
• 3. Variants DB Step
  
• 4. Variants DC Step
  

It is obvious that the chip is of "CA Step".

But all the debug engine, memtools, etc want me to choose from " A, B, C " Step. So Anyone could guide me that whether this chip belongs to "A Step" or "C Step"?

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Thanks.

[cwunder]

For a device marking of "CA" you would choose "C-step" as "C" is the major revision level (while "A" is the minor revision level).

[User12775]

Thank you cwunder for saving me from confusing.

But if I have "DB Step" chip, how to choose the target configuration. Since all the tools I have only has "A, B, C" steps.

Although I don't have a "DB" chip right now, it is question worth asking.

I guess I need to upgrade my tool, right?

[User19107]

Is there any configuration change from TC265 BB step and TC265 BC step?

The Software developed for TC265 BB-step will be supported in TC265 BC-step?

[CookieMonster11]

In general it is compatible when you switch from BB step to BC step. It depends on what you do in your code on register level. Best is to assess the latest errata sheet, where the bug fixes and design changes are documented.
The biggest change is in the CAN module due to the ISO CAN FD capability re-design. There are some registers changed, this is all described in the errata sheet with new register bitfields and their function.