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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2021/01/13 17:30:18 UTC

[GitHub] [incubator-nuttx] btashton edited a comment on pull request #2674: nrf52_i2c: add support for I2C_M_NOSTOP and I2C_M_NOSTART flags

btashton edited a comment on pull request #2674:
URL: https://github.com/apache/incubator-nuttx/pull/2674#issuecomment-759602281


   > I see NOSTART used in various drivers, does that not expect a message without a (repeated) start? From the i2c header file a repeated start requires a NOSTOP on previous message and a zero flag on following one, so that would be the case of repeated starts, right? The change enables the copy on both cases so I think most drivers will see the copy when they could actually have repeated start in most cases.
   
   Sorry yes I was remembering wrong on this.  I had to handle this on another i2c master, my point remains though that in this case this should just be treated as a single transfer and that should be fully supported by using the EasyDMA List feature.


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