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atsamd: Add support for programming SERCOM pins

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Signed-off-by: Florian Heilmann <Florian.Heilmann@gmx.net>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-02-19 00:32:37 -05:00
parent 8617cbcb76
commit c8d7e28a35
10 changed files with 500 additions and 41 deletions
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21
config/example-extras.cfg
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@ -721,6 +721,27 @@
# parameter must be provided.
# SAMD SERCOM configuration to specify which pins to use on a given SERCOM.
# One may define one section with the "samd_sercom" prefix per
# SERCOM available. Each SERCOM must be configured prior to using it as
# SPI or I2C peripheral. Place this config section above any other section
# that makes use of SPI or I2C buses.
#[samd_sercom 0]
#tx_pin:
# MOSI pin for SPI communication, or SDA (data) pin for I2C
# communication. The pin must have a valid pinmux configuration
# for the given SERCOM peripheral. This parameter must be provided.
#rx_pin:
# MISO pin for SPI communication. This pin is not used for I2C
# communication (I2C uses tx_pin for both sending and receiving).
# The pin must have a valid pinmux configuration for the given
# SERCOM peripheral. This parameter is optional.
#clk_pin:
# CLK pin for SPI communication, or SCL (clock) pin for I2C
# communication. The pin must have a valid pinmux configuration
# for the given SERCOM peripheral. This parameter must be provided.
# Statically configured AD5206 digipots connected via SPI bus (one may
# define any number of sections with an "ad5206" prefix).
#[ad5206 my_digipot]