TMS320F280049C: Flash boot pin settings

Conor

Guru 13695 points

Part Number: TMS320F280049C

Hi,

Do GPIO24 and GPIO32 always need to be in the High state when the power is turned on?

For example, GPIO32 can be selected as CAN.

Is it okay to use it as a CAN after booting with Flash?

Or I want to use GPIO24 as the output of the comparator.

The comparator should be a circuit that pulls up high at startup.

Thanks,

Koki

0 Baskaran Chidambaram over 4 years ago

using 24 for both boot mode selection and CAN might cause issues.

Can you use different set of pins for CAN ?

0 Conor over 4 years ago in reply to Baskaran Chidambaram

Guru 13695 points

Hi,

Question 1

It is okay to use GPIO24 as the output pin of the comparator after using it in Flash boot.

Is the above recognition correct?

Question2

Baskaran Chidambaram said:
CAN might cause issues.

Is it okay to recognize that GPIO32 should not be used as a CAN pin after being used in Flash boot?

If my perception is correct, please tell me the reason(Is it because of the terminating resistor?...).

Thanks,

0 Conor over 4 years ago in reply to Baskaran Chidambaram

Guru 13695 points

Hi,

Do you have any update?

Thanks

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