MSP432P4011: Hardware invocation of BSL

David George1

Part Number: MSP432P4011

We are using MSP432P4011 P1.1 for Hardware invocation of BSL. We are seeing glitch in P1.1 during power on after 4ms is that expected behavior?

over 6 years ago

0 PM over 6 years ago

TI__Mastermind 27145 points

Hi,

We will look into it and get back to you ASAP. Please bear with us.

Thanks,

0 Seong Kim over 6 years ago

TI__Mastermind 49101 points

Hi David,

I am looking into this to understand why this glitch is occurring. Is this glitch causing any concerns?

BR,

Seong

0 David George1 over 6 years ago in reply to Seong Kim

Prodigy 40 points

Hi Seong,

We observed this behavior part of our DVT so for there is no known issue but we are planning to use this pin multipurpose upcoming design so we need to understand the behavior before proceeding further. are you seeing the same behavior in your EVM?

Thanks and regards,

David G.

0 Seong Kim over 6 years ago in reply to David George1

TI__Mastermind 49101 points

Hi David,

I am not seeing the same behavior on my MSP-EXP432P401 LaunchPad.

Is the oscilloscope shot that you provided from measuring a LaunchPad as well? Or your own custom board?

BR,

Seong

0 Seong Kim over 6 years ago in reply to Seong Kim

TI__Mastermind 49101 points

David,

I've also reached out to our BSL team, and I'm told that what you are observing may be related to P1.1 having a shared functionality. P1.1 can also be used for eUSCI_A0 SPI Clock signal, so the glitch could be the BSL re-configuring the pin for SPI functionality.

BR,

Seong

0 Seong Kim over 6 years ago

TI__Mastermind 49101 points

David,

We've tested this on another LP and a target socket board, but we could not reproduce this glitch. Do you have any other updates regarding this?

BR,

Seong

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MSP432P4011: Hardware invocation of BSL