TMS320F28379D: CPU2 boot in emulation mode

Gabriel G.

Part Number: TMS320F28379D

The technical reference manual (https://www.ti.com/lit/ug/spruhm8i/spruhm8i.pdf), comments in chapter 4.7, table 4-10, that in emulation mode (with JTAG) the CPU2 can boot from several sources.

But later, in chapter 4.8, the boot diagrams only seem to permit Get Mode (from OTP): on Figure 4-5, if EMUKEY==0x5A, any value of EMU_BMODE goes to (A). I understand that (A) is the OTP Get Mode of figure 4-7, where only OTP is checked. This seems to be an error of the TRM. Which is the correct functioning?

By the way, this diagrams are very difficult to follow and seem to need some revision. For example, regarding CPU2 in emulation mode:

The blue square on Figure 4-5, seems to miss the value for FLASHBOOT;
Standalone or RAMBOOT are not mentioned anywhere.

over 5 years ago

0 Baskaran Chidambaram over 5 years ago

TI__Genius 17370 points

You can refer the table for complete list. The flowchart may not show the exhaustive list of options.

0 Gabriel G. over 5 years ago in reply to Baskaran Chidambaram

Prodigy 46 points

Thanks,

If the diagrams are incorrect, I would strongly recommend TI to correct them, because apart from incomplete, they are misleading: you can't know the flow taken in the hidden cases, and it could be interpreted as if all cases with factory default OTP end up in the wait state (except Hibernation & HWBIST).

0 Baskaran Chidambaram over 5 years ago in reply to Gabriel G.

TI__Genius 17370 points

sure will raise a ticket to update the TRM.

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TMS320F28379D: CPU2 boot in emulation mode