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Smart Bluetooth

Anonymous
Not applicable

In looking at the BCM20732 BLESB-BLE-S03 PEVB ref-des that I pulled from this forum, I've noticed that there is NO pullup on GPIO, P1. (pin 25) Yet the current datasheet for the SIP module (TRM102) (pg 11) indicates that P1 requires a 10K pullup.  It notes that the pin is tied internally to the WP of the EEPROM. So is a pullup required?

Thanks

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1 Solution
MichaelF_56
Moderator
Moderator

The manufacture of the module found that in some use cases that the 10K resistor was required externally to prevent errors during boot.  Because we could not pin point all the use cases where it would be required, we ask that customers provide the external pull-up as a preventative measure.

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3 Replies
MichaelF_56
Moderator
Moderator

The manufacture of the module found that in some use cases that the 10K resistor was required externally to prevent errors during boot.  Because we could not pin point all the use cases where it would be required, we ask that customers provide the external pull-up as a preventative measure.

View solution in original post

Anonymous
Not applicable

Hi mwf_mmfae,

As long as P1 is kept high during boot time, can it be used as a regular input post-boot?

Thanks,

Javier

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MichaelF_56
Moderator
Moderator

While the WICED™ Smart Hardware Interfaces guide states that the pin is available, this guide was written primarily with the SoC in mind.

Unfortunately, the SIP module uses P1 for EEPROM WP, so its unavailable on the SIP module.

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