TMS320F28388D: Default Boot pin question

CHO SR

Part Number: TMS320F28388D

Tool/software:

Hi,

In the image below, GPIO72 and GPIO84 are default Boot mode pins.

If you look at the controlCARD or the relevant reference circuit, these two pins are connected to separate pull-up resistors and select switches.

The question is, if I use these two pins as GPIO for Boot mode, but as EtherCAT related pins, can I boot to JTAG or flash?

29 days ago

0 Benjamin Collier 29 days ago

TI__Mastermind 23626 points

Hi,

CHO SR said:
The question is, if I use these two pins as GPIO for Boot mode, but as EtherCAT related pins, can I boot to JTAG or flash?

I do not think that I understand your question, could you please explain further?

Best Regards,

Ben Collier

0 CHO SR 28 days ago in reply to Benjamin Collier

Genius 3195 points

Sorry, there was an error in writing my question.

The customer wants to use GPIO72, GPIO84 pin as EtherCAT.

If I use it as an EtherCAT pin, I wonder if there are any other problems.

0 Benjamin Collier 28 days ago in reply to CHO SR

TI__Mastermind 23626 points

Hi,

Please see 'Device Boot Configurations' section of the TRM, you are able to select different boot pins if you wish. You can also have 0 boot pins and select a permanent boot mode.

Best Regards,

Ben Collier

0 robin Moon 25 days ago in reply to Benjamin Collier

Expert 1175 points

Hi Benjamin

could you explain in detail how to use 0 boot pin? Also, please explain how to change the boot pin.

There are so many contents of TRM that it is hard to understand.

we are going to use GPIO72/84 as for ethercat and use flash boot.

thanks

0 Benjamin Collier 24 days ago in reply to robin Moon

TI__Mastermind 23626 points

Robin,

The TRM explains it as well as I can. Please search for the 'Device Boot Configurations' section, and you will find the information.

Best Regards,

Ben Collier

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TMS320F28388D: Default Boot pin question