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https://issues.apache.org/jira/browse/MYNEWT-286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249972#comment-15249972
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Johan Hedberg commented on MYNEWT-286:
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I wonder if this is related to the fact that nimble currently returns 260 as
the max ACL packet length in the response to the "LE Read Buffer Size" HCI
command? Is that the correct value for the nRF51? Should it perhaps instead be
27?
> nRF51 crashes when receiving large(ish) ACL packet
> --------------------------------------------------
>
> Key: MYNEWT-286
> URL: https://issues.apache.org/jira/browse/MYNEWT-286
> Project: Mynewt
> Issue Type: Bug
> Components: Nimble
> Environment: nRF51 USB dongle or devkit
> Reporter: Johan Hedberg
>
> The default L2CAP MTUs of ATT and legacy SMP fixed channels is 23. This works
> fine. As soon as LE Secure Connections SMP is attempted (MTU of 65) and the
> public key sent the controller stops responding (gdb doesn't work. needs a
> hard power cycle).
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