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kinetis: Add support for LPUART module in parallel with UART module #7362

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merged 1 commit into from
Nov 8, 2017

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jnohlgard
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@jnohlgard jnohlgard commented Jul 14, 2017

Depends on #6994

Split from #6994 to make the review easier.

A dispatcher function is implemented for directing writes to the correct
function. The dispatcher is bypassed completely if the CPU only contain
one kind of UART module.

There are at least two different UART hardware modules deployed in
different Kinetis CPU families (or possibly three or more when counting
variations of the UART module). The UART module is an older 8 bit module
with advanced functionality, while the LPUART is a 32 bit module with
focus on low power consumption.

  • The older families in the K series all have UART modules.
  • The K22F family have both UART and LPUART modules in the same CPU.
  • Older L series (e.g. KL25Z) have two variations of the UART module
  • Newer L series (e.g. KL43Z) have LPUART modules, and sometimes
    UART as well.
  • Newer W series (KW41Z) have only LPUART

@haukepetersen
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haukepetersen commented Jul 17, 2017

On first sight, the changes look legid to me. I will take a final look at the changes one #6994 is merged and this PR is rebased

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Ah, and by the way thanks for splitting those PRs!

@jnohlgard
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rebased

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ping @haukepetersen

@jnohlgard jnohlgard added the CI: ready for build If set, CI server will compile all applications for all available boards for the labeled PR label Aug 1, 2017
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(CI was idle)

@jnohlgard jnohlgard force-pushed the pr/kinetis-lpuart branch 2 times, most recently from e2affdc to cd94f6f Compare August 5, 2017 05:52
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Updated the UART mode handling to support LPUART as well

@emmanuelsearch
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@gebart so is the whole cluster of PRs ready for review from your perspective?
Would be great to merge support for this board now-ish ;)

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This PR and the board+CPU PR is ready IMO. The transceiver driver has been stable in my tests, but there may be some clean up needed yet.

@jnohlgard jnohlgard force-pushed the pr/kinetis-lpuart branch 2 times, most recently from f9d2e3d to a2da73b Compare September 25, 2017 05:57
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@haukepetersen @emmanuelsearch This is ready for review. This is currently blocking #6995 and #7107, and it's a general pain to keep basing all my other working branches on this PR.

A dispatcher function is implemented for directing writes to the correct
function. The dispatcher is bypassed completely if the CPU only contain
one kind of UART module.

There are at least two different UART hardware modules deployed in
different Kinetis CPU families (or possibly three or more when counting
variations of the UART module). The UART module is an older 8 bit module
with advanced functionality, while the LPUART is a 32 bit module with
focus on low power consumption.

 - The older families in the K series all have UART modules.
 - The K22F family have both UART and LPUART modules in the same CPU.
 - Older L series (e.g. KL25Z) have two variations of the UART module
 - Newer L series (e.g. KL43Z) have LPUART modules, and sometimes
   UART as well.
 - Newer W series (KW41Z) have only LPUART
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kYc0o commented Nov 7, 2017

I have tested and reviewed what I can and found no issues so far.

@kYc0o kYc0o added CI: ready for build If set, CI server will compile all applications for all available boards for the labeled PR and removed CI: ready for build If set, CI server will compile all applications for all available boards for the labeled PR labels Nov 7, 2017
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kYc0o commented Nov 7, 2017

Re-trigger murdock just in case...

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ACK

@miri64 miri64 merged commit 5ce13b3 into RIOT-OS:master Nov 8, 2017
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Thanks! 🎉

@jnohlgard jnohlgard deleted the pr/kinetis-lpuart branch November 8, 2017 15:56
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5 participants