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machine/samd21: use PinMode for SPI SERCOM peripheral to allow for more configuration options on boards like Arduino Nano33-IoT that have many predefined pin mappings

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Signed-off-by: Ron Evans <ron@hybridgroup.com>
This commit is contained in:
Ron Evans
2019-09-16 14:42:46 +02:00
committed by Ayke
parent d2856bd6bd
commit f5fd49bb74
6 changed files with 53 additions and 45 deletions
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src/machine/board_itsybitsy-m0.go
+12 -10
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@@ -91,11 +91,12 @@ const (
// SPI on the ItsyBitsy M0.
var (
SPI0 = SPI{Bus: sam.SERCOM4_SPI,
SCK: SPI0_SCK_PIN,
MOSI: SPI0_MOSI_PIN,
MISO: SPI0_MISO_PIN,
DOpad: spiTXPad2SCK3,
DIpad: sercomRXPad0}
SCK: SPI0_SCK_PIN,
MOSI: SPI0_MOSI_PIN,
MISO: SPI0_MISO_PIN,
DOpad: spiTXPad2SCK3,
DIpad: sercomRXPad0,
PinMode: PinSERCOMAlt}
)
// "Internal" SPI pins; SPI flash is attached to these on ItsyBitsy M0
@@ -109,11 +110,12 @@ const (
// "Internal" SPI on Sercom 5
var (
SPI1 = SPI{Bus: sam.SERCOM5_SPI,
SCK: SPI1_SCK_PIN,
MOSI: SPI1_MOSI_PIN,
MISO: SPI1_MISO_PIN,
DOpad: spiTXPad2SCK3,
DIpad: sercomRXPad1}
SCK: SPI1_SCK_PIN,
MOSI: SPI1_MOSI_PIN,
MISO: SPI1_MISO_PIN,
DOpad: spiTXPad2SCK3,
DIpad: sercomRXPad1,
PinMode: PinSERCOMAlt}
)
// I2S pins