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board/teensy40: Add I2C support (#1471)

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* teensy40: add I2C support
This commit is contained in:
ardnew
2022-06-22 04:28:50 -05:00
committed by GitHub
parent 2825b4fe74
commit afae6b3795
4 changed files with 710 additions and 8 deletions
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src/machine/board_teensy40.go
+46
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@@ -346,3 +346,49 @@ const (
I2C3_SDA_PIN = D25
I2C3_SCL_PIN = D24
)
var (
I2C0 = I2C1 // I2C0 is an alias for I2C1 (LPI2C1)
I2C1 = &_I2C1
_I2C1 = I2C{
Bus: nxp.LPI2C1,
sda: I2C1_SDA_PIN, // D18 (PA17 [AD_B1_01])
scl: I2C1_SCL_PIN, // D19 (PA16 [AD_B1_00])
muxSDA: muxSelect{
mux: nxp.IOMUXC_LPI2C1_SDA_SELECT_INPUT_DAISY_GPIO_AD_B1_01_ALT3,
sel: &nxp.IOMUXC.LPI2C1_SDA_SELECT_INPUT,
},
muxSCL: muxSelect{
mux: nxp.IOMUXC_LPI2C1_SCL_SELECT_INPUT_DAISY_GPIO_AD_B1_00_ALT3,
sel: &nxp.IOMUXC.LPI2C1_SCL_SELECT_INPUT,
},
}
I2C2 = &_I2C2
_I2C2 = I2C{
Bus: nxp.LPI2C3,
sda: I2C2_SDA_PIN, // D17 (PA22 [AD_B1_06])
scl: I2C2_SCL_PIN, // D16 (PA23 [AD_B1_07])
muxSDA: muxSelect{
mux: nxp.IOMUXC_LPI2C3_SDA_SELECT_INPUT_DAISY_GPIO_AD_B1_06_ALT1,
sel: &nxp.IOMUXC.LPI2C3_SDA_SELECT_INPUT,
},
muxSCL: muxSelect{
mux: nxp.IOMUXC_LPI2C3_SCL_SELECT_INPUT_DAISY_GPIO_AD_B1_07_ALT1,
sel: &nxp.IOMUXC.LPI2C3_SCL_SELECT_INPUT,
},
}
I2C3 = &_I2C3
_I2C3 = I2C{
Bus: nxp.LPI2C4,
sda: I2C3_SDA_PIN, // D25 (PA13 [AD_B0_13])
scl: I2C3_SCL_PIN, // D24 (PA12 [AD_B0_12])
muxSDA: muxSelect{
mux: nxp.IOMUXC_LPI2C4_SDA_SELECT_INPUT_DAISY_GPIO_AD_B0_13_ALT0,
sel: &nxp.IOMUXC.LPI2C4_SDA_SELECT_INPUT,
},
muxSCL: muxSelect{
mux: nxp.IOMUXC_LPI2C4_SCL_SELECT_INPUT_DAISY_GPIO_AD_B0_12_ALT0,
sel: &nxp.IOMUXC.LPI2C4_SCL_SELECT_INPUT,
},
}
)