94 lines
2.9 KiB
Rust
94 lines
2.9 KiB
Rust
use stm32f4xx_hal::{
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gpio::{
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AF5, Alternate,
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gpioa::{PA1, PA2, PA7},
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gpiob::{PB10, PB11, PB12, PB13, PB14, PB15},
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gpioc::{PC1, PC4, PC5},
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gpiog::{PG13},
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GpioExt,
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Output, PushPull,
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Speed::VeryHigh,
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},
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rcc::Clocks,
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spi::Spi,
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stm32::{GPIOA, GPIOB, GPIOC, GPIOG, SPI2},
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};
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/// SPI peripheral used for communication with the ADC
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type AdcSpi = Spi<SPI2, (PB10<Alternate<AF5>>, PB14<Alternate<AF5>>, PB15<Alternate<AF5>>)>;
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pub struct Pins {
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pub adc_spi: AdcSpi,
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pub adc_nss: PB12<Output<PushPull>>,
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}
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impl Pins {
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/// Setup GPIO pins and configure MCU peripherals
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pub fn setup(clocks: Clocks, gpioa: GPIOA, gpiob: GPIOB, gpioc: GPIOC, gpiog: GPIOG, spi2: SPI2) -> Self {
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let gpioa = gpioa.split();
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let gpiob = gpiob.split();
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let gpioc = gpioc.split();
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let gpiog = gpiog.split();
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Self::setup_ethernet(
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gpioa.pa1, gpioa.pa2, gpioc.pc1, gpioa.pa7,
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gpioc.pc4, gpioc.pc5, gpiob.pb11, gpiog.pg13,
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gpiob.pb13
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);
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let adc_spi = Self::setup_spi_adc(clocks, spi2, gpiob.pb10, gpiob.pb14, gpiob.pb15);
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let adc_nss = gpiob.pb12.into_push_pull_output();
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Pins {
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adc_spi,
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adc_nss,
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}
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}
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/// Configure the GPIO pins for SPI operation, and initialize SPI
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fn setup_spi_adc<M1, M2, M3>(
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clocks: Clocks,
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spi2: SPI2,
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sck: PB10<M1>,
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miso: PB14<M2>,
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mosi: PB15<M3>,
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) -> AdcSpi
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{
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let sck = sck.into_alternate_af5();
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let miso = miso.into_alternate_af5();
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let mosi = mosi.into_alternate_af5();
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Spi::spi2(
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spi2,
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(sck, miso, mosi),
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crate::ad7172::SPI_MODE,
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crate::ad7172::SPI_CLOCK.into(),
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clocks
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)
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}
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/// Configure the GPIO pins for Ethernet operation
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fn setup_ethernet<M1, M2, M3, M4, M5, M6, M7, M8, M9>(
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pa1: PA1<M1>, pa2: PA2<M2>, pc1: PC1<M3>, pa7: PA7<M4>,
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pc4: PC4<M5>, pc5: PC5<M6>, pb11: PB11<M7>, pg13: PG13<M8>,
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pb13: PB13<M9>
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) {
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// PA1 RMII Reference Clock - SB13 ON
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pa1.into_alternate_af11().set_speed(VeryHigh);
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// PA2 RMII MDIO - SB160 ON
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pa2.into_alternate_af11().set_speed(VeryHigh);
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// PC1 RMII MDC - SB164 ON
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pc1.into_alternate_af11().set_speed(VeryHigh);
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// PA7 RMII RX Data Valid D11 JP6 ON
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pa7.into_alternate_af11().set_speed(VeryHigh);
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// PC4 RMII RXD0 - SB178 ON
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pc4.into_alternate_af11().set_speed(VeryHigh);
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// PC5 RMII RXD1 - SB181 ON
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pc5.into_alternate_af11().set_speed(VeryHigh);
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// PB11 RMII TX Enable - SB183 ON
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pb11.into_alternate_af11().set_speed(VeryHigh);
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// PG13 RXII TXD0 - SB182 ON
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pg13.into_alternate_af11().set_speed(VeryHigh);
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// PB13 RMII TXD1 I2S_A_CK JP7 ON
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pb13.into_alternate_af11().set_speed(VeryHigh);
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}
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}
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