[riot-notifications] [RIOT-OS/RIOT] boards/stm32: introduce and use shared i2c config with I2C1 on PB6/PB7 (#12141)

Alexandre Abadie notifications at github.com
Mon Sep 2 08:18:09 CEST 2019

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### Contribution description

Following #12025 and #12068, this PR is factorizing the configuration for those boards since they are very similar.
iotlab-m3 could also use the new common file but that would first require to provide a shared clock configuration.

@mrusme has the hardware so maybe he could test and report his results here.

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- if it's a bug fix, describe the bug that it solves and how it is solved
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### Testing procedure

Test an I2C device on nucleo-l031k6 and nucleo-l432kc

Details steps to test your contribution:
- which test/example to compile for which board and is there a 'test' command
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### Issues/PRs references

Factorization of configurations introduced in #12025 and #12068.

Examples: Fixes #1234. See also #5678. Depends on PR #9876.

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-- Commit Summary --

  * boards/stm32: introduce shared i2c configuration
  * boards/nucleo: use shared I2C configuration

-- File Changes --

    A boards/common/stm32/include/cfg_i2c1_pb6_pb7.h (69)
    M boards/nucleo-l031k6/include/periph_conf.h (24)
    M boards/nucleo-l432kc/include/periph_conf.h (24)

-- Patch Links --


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