[riot-notifications] [RIOT-OS/RIOT] cpu/saml1x: set wait state according to datasheet (#11249)

Dylan Laduranty notifications at github.com
Sat Mar 23 21:41:44 CET 2019


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### Contribution description
According to datasheet, SAML1X should be set in PL2 with 1 WaitState if it runs at 16MHz (which is currently the default speed supported).
See Chap 46.12 from the [datasheet](http://ww1.microchip.com/downloads/en/DeviceDoc/SAM-L10-L11-Family-Data-Sheet-DS60001513C.pdf)
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### Testing procedure
run any tests you want on SAML10-XPRO or SAML11-XPRO
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### Issues/PRs references
@emmanuelsearch could you check that your PR works with this one ?
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You can view, comment on, or merge this pull request online at:

  https://github.com/RIOT-OS/RIOT/pull/11249

-- Commit Summary --

  * cpu/saml1x: set wait state according to datasheet

-- File Changes --

    M cpu/saml1x/cpu.c (20)

-- Patch Links --

https://github.com/RIOT-OS/RIOT/pull/11249.patch
https://github.com/RIOT-OS/RIOT/pull/11249.diff

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