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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2020/11/07 20:31:15 UTC

[GitHub] [incubator-nuttx] v01d commented on pull request #2240: nrf52 GPIO/GPIOTE: better expose pin interrupt capability

v01d commented on pull request #2240:
URL: https://github.com/apache/incubator-nuttx/pull/2240#issuecomment-723491910


   @btashton this is somewhat related to the pending fix/changes in nRF52 SPIM since there are some direct register accesses to PPI and GPIOTE in there which should somehow be made to ensure do not conflict with PPI/GPIOTE channels used via the low-level nRF52 api for these peripherals. I think a second step would be to add the notion of "reserved" PPI and GPIOTE channels and then add DEBUGASSERT() on PPI/GPIOTE for these channels to ensure the user does not attempt to use a "reserved" channel. Also, note that there's a specific errata for using SPIM and GPIOTE together, so we should consider that in the workaround for the other SPIM errata :facepalm:


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