SPI Boot on Piccolo 28069

Malte Krebs

Hi,

I am reading through the Boot ROM Manual in the Piccolo 2806x Technical Reference Manual (SPUH18C). On page 222 and 223 I miss clear information about what happens when the key value is invalid. The description of step 5 on page 222 ends with an incomplete sentence. The figure 2-20 shows that in case of an invalid key value a jump to flash is done.

My question: will the SPI boot function in the case of an invalid key value jump to address 0x3F 7FF6 like it is done when OTP_KEY and/or OTP_BMODE are invalid? I assume the answer is yes because on other 28xx(x) devices this is the case, but can anyone confirm?

Thanks in advance

Malte

over 13 years ago

0 Santosh Athuru over 13 years ago

TI__Mastermind 19810 points

Malte,

apologize for the mistake. We will get the TRM corrected for 'step 5 on page 222', thanks for pointing out. As the flow diagram - 'figure 2-20' shows, yes the device defaults to flash entry point if an invalid key is found.

Please let me know if you have any questions.

Best Regards

Santosh

0 Malte Krebs over 13 years ago in reply to Santosh Athuru

Prodigy 165 points

Hi Santosh,

thanks a lot for the fast reply.

Best regards,

Malte

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SPI Boot on Piccolo 28069