The nRF52840 supports 2 Master/Slave instances.
Is it possible to configure the nRF52840 as a Master when connected to an I2C bus that has another Master present?
The nRF52840 supports 2 Master/Slave instances.
Is it possible to configure the nRF52840 as a Master when connected to an I2C bus that has another Master present?
Datasheet says "This TWIM is only able to operate as a single master on the TWI bus. Multi-master bus configuration is not supported." (page 427). Two master may lead to unpredictable results.
Hi,
Thank you for the quick response.
I did see that statement but took it to only apply to the circuit diagram shown - hence the term "This TWIM … ".
Elsewhere the datasheet shows that the nRF52 supports two TWI instances where one can be a slave and one a master.
I don't think that they could both be enabled if mapped to the same pins, but could I not map them to different pins and connect those to the same bus?
could I not map them to different pins and connect those to the same bus?
You could - but what would be the point?
Multi-Master would still not be supported.
could I not map them to different pins and connect those to the same bus?
You could - but what would be the point?
Multi-Master would still not be supported.