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//! Teensy 4.0 specific APIs
//!
//! Use [`from_pads`](from_pads()) to constrain the processor pads into the pins available on the Teensy 4.0.
//! If you cannot safely acquire all processor pads, use the unsafe [`Pins::new`](Pins::new())
//! method to generate pins.
//!
//! | Pin | Pad ID | Alt0 | Alt1 | Alt2 | Alt3 | Alt4 | Alt5 | Alt6 | Alt7 | Alt8 | Alt9 |
//! | ---- | ------------- | ------------ | --------------- | ------------- | ------------- | -------------- | ---------- | -------------- | ------- | ------------- | -------------- |
//! | 34 | GPIO_SD_B0_03 | USDHC1_DATA1 | FLEXPWM1_PWMB01 | LPUART8_RTS_B | XBAR1_INOUT07 | LPSPI1_SDI | GPIO3_IO15 | --- | --- | ENET2_RDATA00 | SEMC_CLK6 |
//! | 35 | GPIO_SD_B0_02 | USDHC1_DATA0 | FLEXPWM1_PWMA01 | LPUART8_CTS_B | XBAR1_INOUT06 | LPSPI1_SDO | GPIO3_IO14 | --- | --- | ENET2_RX_ER | SEMC_CLK5 |
//! | 36 | GPIO_SD_B0_01 | USDHC1_CLK | FLEXPWM1_PWMB00 | LPI2C3_SDA | XBAR1_INOUT05 | LPSPI1_PCS0 | GPIO3_IO13 | FLEXSPIB_SS1_B | --- | ENET2_TX_CLK | ENET2_REF_CLK2 |
//! | 37 | GPIO_SD_B0_00 | USDHC1_CMD | FLEXPWM1_PWMA00 | LPI2C3_SCL | XBAR1_INOUT04 | LPSPI1_SCK | GPIO3_IO12 | FLEXSPIA_SS1_B | --- | ENET2_TX_EN | SEMC_DQS4 |
//! | 38 | GPIO_SD_B0_05 | USDHC1_DATA3 | FLEXPWM1_PWMB02 | LPUART8_RX | XBAR1_INOUT09 | FLEXSPIB_DQS | GPIO3_IO17 | CCM_CLKO2 | --- | ENET2_RX_EN | --- |
//! | 39 | GPIO_SD_B0_04 | USDHC1_DATA2 | FLEXPWM1_PWMA02 | LPUART8_TX | XBAR1_INOUT08 | FLEXSPIB_SS0_B | GPIO3_IO16 | CCM_CLKO1 | --- | ENET2_RDATA01 | --- |
pub use crate::common::*;
use crate::iomuxc::{gpio_sd_b0::*, ErasedPad};
/// Pin 34 (4.0)
pub type P34 = GPIO_SD_B0_03;
/// Pin 35 (4.0)
pub type P35 = GPIO_SD_B0_02;
/// Pin 36 (4.0)
pub type P36 = GPIO_SD_B0_01;
/// Pin 37 (4.0)
pub type P37 = GPIO_SD_B0_00;
/// Pin 38 (4.0)
pub type P38 = GPIO_SD_B0_05;
/// Pin 39 (4.0)
pub type P39 = GPIO_SD_B0_04;
/// Type-erased Teensy 4.0 pins
///
/// To get pin 13, the LED, index into the 13th element of this array:
/// `erased_pins[13]`.
///
/// Use [`Pins::erase`](Pins::erase()) to erase pin types.
pub type ErasedPins = [ErasedPad; 40];
/// Teensy 4.0 pins
///
/// See [`from_pads`](from_pads()) to safely constrain the processor's pads, and acquire
/// Teensy 4.0 pins. Or, use [`new`](Pins::new()) to unsafely create pins.
pub struct Pins {
/// Pin 0
pub p0: P0,
/// Pin 1
pub p1: P1,
/// Pin 2
pub p2: P2,
/// Pin 3
pub p3: P3,
/// Pin 4
pub p4: P4,
/// Pin 5
pub p5: P5,
/// Pin 6
pub p6: P6,
/// Pin 7
pub p7: P7,
/// Pin 8
pub p8: P8,
/// Pin 9
pub p9: P9,
/// Pin 10
pub p10: P10,
/// Pin 11
pub p11: P11,
/// Pin 12
pub p12: P12,
/// Pin 13
pub p13: P13,
/// Pin 14
pub p14: P14,
/// Pin 15
pub p15: P15,
/// Pin 16
pub p16: P16,
/// Pin 17
pub p17: P17,
/// Pin 18
pub p18: P18,
/// Pin 19
pub p19: P19,
/// Pin 20
pub p20: P20,
/// Pin 21
pub p21: P21,
/// Pin 22
pub p22: P22,
/// Pin 23
pub p23: P23,
/// Pin 24
pub p24: P24,
/// Pin 25
pub p25: P25,
/// Pin 26
pub p26: P26,
/// Pin 27
pub p27: P27,
/// Pin 28
pub p28: P28,
/// Pin 29
pub p29: P29,
/// Pin 30
pub p30: P30,
/// Pin 31
pub p31: P31,
/// Pin 32
pub p32: P32,
/// Pin 33
pub p33: P33,
// END OF COMMON PINS
/// Pin 34
pub p34: P34,
/// Pin 35
pub p35: P35,
/// Pin 36
pub p36: P36,
/// Pin 37
pub p37: P37,
/// Pin 38
pub p38: P38,
/// Pin 39
pub p39: P39,
}
/// Constrain the processor pads to the Teensy 4.0 pins
#[inline]
pub const fn from_pads(iomuxc: crate::iomuxc::Pads) -> Pins {
Pins {
p0: iomuxc.gpio_ad_b0.p03,
p1: iomuxc.gpio_ad_b0.p02,
p2: iomuxc.gpio_emc.p04,
p3: iomuxc.gpio_emc.p05,
p4: iomuxc.gpio_emc.p06,
p5: iomuxc.gpio_emc.p08,
p6: iomuxc.gpio_b0.p10,
p7: iomuxc.gpio_b1.p01,
p8: iomuxc.gpio_b1.p00,
p9: iomuxc.gpio_b0.p11,
p10: iomuxc.gpio_b0.p00,
p11: iomuxc.gpio_b0.p02,
p12: iomuxc.gpio_b0.p01,
p13: iomuxc.gpio_b0.p03,
p14: iomuxc.gpio_ad_b1.p02,
p15: iomuxc.gpio_ad_b1.p03,
p16: iomuxc.gpio_ad_b1.p07,
p17: iomuxc.gpio_ad_b1.p06,
p18: iomuxc.gpio_ad_b1.p01,
p19: iomuxc.gpio_ad_b1.p00,
p20: iomuxc.gpio_ad_b1.p10,
p21: iomuxc.gpio_ad_b1.p11,
p22: iomuxc.gpio_ad_b1.p08,
p23: iomuxc.gpio_ad_b1.p09,
p24: iomuxc.gpio_ad_b0.p12,
p25: iomuxc.gpio_ad_b0.p13,
p26: iomuxc.gpio_ad_b1.p14,
p27: iomuxc.gpio_ad_b1.p15,
p28: iomuxc.gpio_emc.p32,
p29: iomuxc.gpio_emc.p31,
p30: iomuxc.gpio_emc.p37,
p31: iomuxc.gpio_emc.p36,
p32: iomuxc.gpio_b0.p12,
p33: iomuxc.gpio_emc.p07,
// END OF COMMON PINS
p34: iomuxc.gpio_sd_b0.p03,
p35: iomuxc.gpio_sd_b0.p02,
p36: iomuxc.gpio_sd_b0.p01,
p37: iomuxc.gpio_sd_b0.p00,
p38: iomuxc.gpio_sd_b0.p05,
p39: iomuxc.gpio_sd_b0.p04,
}
}
impl Pins {
/// Create an instance of `Pins` when you do not have a handle
/// to the processor pads
///
/// # Safety
///
/// Caller must ensure that the pins are not aliased elsewhere in
/// the program. This could include
///
/// - an existing handle to the `imxrt-iomuxc` pads,
/// - another instance of `Pins` that was safely acquired
/// using [`from_pads`](from_pads()).
#[inline]
pub const unsafe fn new() -> Self {
from_pads(crate::iomuxc::Pads::new())
}
/// Erase the types of all pins
#[inline]
pub fn erase(self) -> ErasedPins {
[
self.p0.erase(),
self.p1.erase(),
self.p2.erase(),
self.p3.erase(),
self.p4.erase(),
self.p5.erase(),
self.p6.erase(),
self.p7.erase(),
self.p8.erase(),
self.p9.erase(),
self.p10.erase(),
self.p11.erase(),
self.p12.erase(),
self.p13.erase(),
self.p14.erase(),
self.p15.erase(),
self.p16.erase(),
self.p17.erase(),
self.p18.erase(),
self.p19.erase(),
self.p20.erase(),
self.p21.erase(),
self.p22.erase(),
self.p23.erase(),
self.p24.erase(),
self.p25.erase(),
self.p26.erase(),
self.p27.erase(),
self.p28.erase(),
self.p29.erase(),
self.p30.erase(),
self.p31.erase(),
self.p32.erase(),
self.p33.erase(),
// END OF COMMON PINS
self.p34.erase(),
self.p35.erase(),
self.p36.erase(),
self.p37.erase(),
self.p38.erase(),
self.p39.erase(),
]
}
}