stm32/test: add stm32f446 (board not in HIL rig yet)

Minor readme typo

ci.sh

@@ -190,6 +190,7 @@ cargo batch  \
     --- build --release --manifest-path examples/wasm/Cargo.toml --target wasm32-unknown-unknown --out-dir out/examples/wasm \
     --- build --release --manifest-path tests/stm32/Cargo.toml --target thumbv7m-none-eabi --features stm32f103c8 --out-dir out/tests/stm32f103c8 \
     --- build --release --manifest-path tests/stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32f429zi --out-dir out/tests/stm32f429zi \
+    --- build --release --manifest-path tests/stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32f446re --out-dir out/tests/stm32f446re \
     --- build --release --manifest-path tests/stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32g491re --out-dir out/tests/stm32g491re \
     --- build --release --manifest-path tests/stm32/Cargo.toml --target thumbv6m-none-eabi --features stm32g071rb --out-dir out/tests/stm32g071rb \
     --- build --release --manifest-path tests/stm32/Cargo.toml --target thumbv6m-none-eabi --features stm32c031c6 --out-dir out/tests/stm32c031c6 \
@@ -220,6 +221,8 @@ cargo batch  \
 rm out/tests/stm32wb55rg/wpan_mac
 rm out/tests/stm32wb55rg/wpan_ble
 
+# not in CI yet.
+rm -rf out/tests/stm32f446re
 
 # unstable, I think it's running out of RAM?
 rm out/tests/stm32f207zg/eth

embassy-stm32/src/sdmmc/mod.rs

@@ -1457,8 +1457,8 @@ cfg_if::cfg_if! {
         macro_rules! kernel_clk {
             ($inst:ident) => {
                 critical_section::with(|_| unsafe {
-                    crate::rcc::get_freqs().pll1_q
-                }).expect("PLL48 is required for SDIO")
+                    unwrap!(crate::rcc::get_freqs().pll1_q)
+                })
             }
         }
     } else if #[cfg(stm32f7)] {
@@ -1469,7 +1469,7 @@ cfg_if::cfg_if! {
                     if sdmmcsel == crate::pac::rcc::vals::Sdmmcsel::SYS {
                         crate::rcc::get_freqs().sys
                     } else {
-                        crate::rcc::get_freqs().pll1_q.expect("PLL48 is required for SDMMC")
+                        unwrap!(crate::rcc::get_freqs().pll1_q)
                     }
                 })
             };
@@ -1479,7 +1479,7 @@ cfg_if::cfg_if! {
                     if sdmmcsel == crate::pac::rcc::vals::Sdmmcsel::SYS {
                         crate::rcc::get_freqs().sys
                     } else {
-                        crate::rcc::get_freqs().pll1_q.expect("PLL48 is required for SDMMC")
+                        unwrap!(crate::rcc::get_freqs().pll1_q)
                     }
                 })
             };

embassy-usb-driver/README.md

@@ -4,7 +4,7 @@ This crate contains the driver traits for [`embassy-usb`]. HAL/BSP crates can im
 traits to add support for using `embassy-usb` for a given chip/platform.
 
 The traits are kept in a separate crate so that breaking changes in the higher-level [`embassy-usb`]
-APIs don't cause a semver-major bump of thsi crate. This allows existing HALs/BSPs to be used
+APIs don't cause a semver-major bump of this crate. This allows existing HALs/BSPs to be used
 with the newer `embassy-usb` without needing updates.
 
 If you're writing an application using USB, you should depend on the main [`embassy-usb`] crate

tests/stm32/Cargo.toml

@@ -6,28 +6,29 @@ license = "MIT OR Apache-2.0"
 autobins = false
 
 [features]
-stm32f103c8 = ["embassy-stm32/stm32f103c8", "not-gpdma"]
-stm32f429zi = ["embassy-stm32/stm32f429zi", "chrono", "eth", "stop", "can", "not-gpdma", "dac-adc-pin", "rng"]
-stm32g071rb = ["embassy-stm32/stm32g071rb", "cm0", "not-gpdma", "dac-adc-pin"]
 stm32c031c6 = ["embassy-stm32/stm32c031c6", "cm0", "not-gpdma"]
+stm32f103c8 = ["embassy-stm32/stm32f103c8", "not-gpdma"]
+stm32f207zg = ["embassy-stm32/stm32f207zg", "chrono", "not-gpdma", "eth", "rng"]
+stm32f303ze = ["embassy-stm32/stm32f303ze", "chrono", "not-gpdma"]
+stm32f429zi = ["embassy-stm32/stm32f429zi", "chrono", "eth", "stop", "can", "not-gpdma", "dac-adc-pin", "rng"]
+stm32f446re = ["embassy-stm32/stm32f446re", "chrono", "stop", "can", "not-gpdma", "dac-adc-pin", "sdmmc"]
+stm32f767zi = ["embassy-stm32/stm32f767zi", "chrono", "not-gpdma", "eth", "rng"]
+stm32g071rb = ["embassy-stm32/stm32g071rb", "cm0", "not-gpdma", "dac-adc-pin"]
 stm32g491re = ["embassy-stm32/stm32g491re", "chrono", "stop", "not-gpdma", "rng"]
-stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "chrono", "not-gpdma", "eth", "dac-adc-pin", "rng"]
-stm32h753zi = ["embassy-stm32/stm32h753zi", "chrono", "not-gpdma", "eth", "rng"]
-stm32h7a3zi = ["embassy-stm32/stm32h7a3zi", "not-gpdma", "rng"]
-stm32wb55rg = ["embassy-stm32/stm32wb55rg", "chrono", "not-gpdma", "ble", "mac" , "rng"]
 stm32h563zi = ["embassy-stm32/stm32h563zi", "chrono", "eth", "rng"]
-stm32u585ai = ["embassy-stm32/stm32u585ai", "chrono", "rng"]
-stm32u5a5zj = ["embassy-stm32/stm32u5a5zj", "chrono", "rng"]
-stm32wba52cg = ["embassy-stm32/stm32wba52cg", "chrono", "rng"]
+stm32h753zi = ["embassy-stm32/stm32h753zi", "chrono", "not-gpdma", "eth", "rng"]
+stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "chrono", "not-gpdma", "eth", "dac-adc-pin", "rng"]
+stm32h7a3zi = ["embassy-stm32/stm32h7a3zi", "not-gpdma", "rng"]
 stm32l073rz = ["embassy-stm32/stm32l073rz", "cm0", "not-gpdma", "rng"]
 stm32l152re = ["embassy-stm32/stm32l152re", "chrono", "not-gpdma"]
+stm32l496zg = ["embassy-stm32/stm32l496zg", "not-gpdma", "rng"]
 stm32l4a6zg = ["embassy-stm32/stm32l4a6zg", "chrono", "not-gpdma", "rng"]
 stm32l4r5zi = ["embassy-stm32/stm32l4r5zi", "chrono", "not-gpdma", "rng"]
 stm32l552ze = ["embassy-stm32/stm32l552ze", "not-gpdma", "rng"]
-stm32f767zi = ["embassy-stm32/stm32f767zi", "chrono", "not-gpdma", "eth", "rng"]
-stm32f207zg = ["embassy-stm32/stm32f207zg", "chrono", "not-gpdma", "eth", "rng"]
-stm32f303ze = ["embassy-stm32/stm32f303ze", "chrono", "not-gpdma"]
-stm32l496zg = ["embassy-stm32/stm32l496zg", "not-gpdma", "rng"]
+stm32u585ai = ["embassy-stm32/stm32u585ai", "chrono", "rng"]
+stm32u5a5zj = ["embassy-stm32/stm32u5a5zj", "chrono", "rng"]
+stm32wb55rg = ["embassy-stm32/stm32wb55rg", "chrono", "not-gpdma", "ble", "mac" , "rng"]
+stm32wba52cg = ["embassy-stm32/stm32wba52cg", "chrono", "rng"]
 stm32wl55jc = ["embassy-stm32/stm32wl55jc-cm4", "not-gpdma", "rng", "chrono"]
 
 eth = []

tests/stm32/src/bin/can.rs

@@ -27,21 +27,21 @@ bind_interrupts!(struct Irqs {
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
-    let mut p = embassy_stm32::init(config());
+    let p = embassy_stm32::init(config());
     info!("Hello World!");
 
-    // HW is connected as follows:
-    // PB13 -> PD0
-    // PB12 -> PD1
+    let can = peri!(p, CAN);
+    let tx = peri!(p, CAN_TX);
+    let mut rx = peri!(p, CAN_RX);
 
     // The next two lines are a workaround for testing without transceiver.
     // To synchronise to the bus the RX input needs to see a high level.
     // Use `mem::forget()` to release the borrow on the pin but keep the
     // pull-up resistor enabled.
-    let rx_pin = Input::new(&mut p.PD0, Pull::Up);
+    let rx_pin = Input::new(&mut rx, Pull::Up);
     core::mem::forget(rx_pin);
 
-    let mut can = Can::new(p.CAN1, p.PD0, p.PD1, Irqs);
+    let mut can = Can::new(can, rx, tx, Irqs);
 
     info!("Configuring can...");
 

tests/stm32/src/bin/dac.rs

@@ -6,6 +6,8 @@
 
 #[path = "../common.rs"]
 mod common;
+use core::f32::consts::PI;
+
 use common::*;
 use defmt::assert;
 use embassy_executor::Spawner;
@@ -13,6 +15,7 @@ use embassy_stm32::adc::Adc;
 use embassy_stm32::dac::{DacCh1, Value};
 use embassy_stm32::dma::NoDma;
 use embassy_time::{Delay, Timer};
+use micromath::F32Ext;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
@@ -20,24 +23,22 @@ async fn main(_spawner: Spawner) {
     // Initialize the board and obtain a Peripherals instance
     let p: embassy_stm32::Peripherals = embassy_stm32::init(config());
 
-    #[cfg(feature = "stm32f429zi")]
-    let dac_peripheral = p.DAC;
+    let dac = peri!(p, DAC);
+    let dac_pin = peri!(p, DAC_PIN);
+    let mut adc_pin = unsafe { core::ptr::read(&dac_pin) };
 
-    #[cfg(any(feature = "stm32h755zi", feature = "stm32g071rb"))]
-    let dac_peripheral = p.DAC1;
-
-    let mut dac = DacCh1::new(dac_peripheral, NoDma, p.PA4);
+    let mut dac = DacCh1::new(dac, NoDma, dac_pin);
     let mut adc = Adc::new(p.ADC1, &mut Delay);
 
     #[cfg(feature = "stm32h755zi")]
     let normalization_factor = 256;
-    #[cfg(any(feature = "stm32f429zi", feature = "stm32g071rb"))]
+    #[cfg(any(feature = "stm32f429zi", feature = "stm32f446re", feature = "stm32g071rb"))]
     let normalization_factor: i32 = 16;
 
     dac.set(Value::Bit8(0));
     // Now wait a little to obtain a stable value
     Timer::after_millis(30).await;
-    let offset = adc.read(&mut unsafe { embassy_stm32::Peripherals::steal() }.PA4);
+    let offset = adc.read(&mut adc_pin);
 
     for v in 0..=255 {
         // First set the DAC output value
@@ -62,10 +63,6 @@ async fn main(_spawner: Spawner) {
     cortex_m::asm::bkpt();
 }
 
-use core::f32::consts::PI;
-
-use micromath::F32Ext;
-
 fn to_sine_wave(v: u8) -> u8 {
     if v >= 128 {
         // top half

tests/stm32/src/bin/sdmmc.rs

@@ -5,11 +5,12 @@
 #[path = "../common.rs"]
 mod common;
 
-use defmt::{assert_eq, *};
+use common::*;
+use defmt::assert_eq;
 use embassy_executor::Spawner;
 use embassy_stm32::sdmmc::{DataBlock, Sdmmc};
 use embassy_stm32::time::mhz;
-use embassy_stm32::{bind_interrupts, peripherals, sdmmc, Config};
+use embassy_stm32::{bind_interrupts, peripherals, sdmmc};
 use {defmt_rtt as _, panic_probe as _};
 
 bind_interrupts!(struct Irqs {
@@ -20,12 +21,8 @@ bind_interrupts!(struct Irqs {
 async fn main(_spawner: Spawner) {
     info!("Hello World!");
 
-    let mut config = Config::default();
-    config.rcc.sys_ck = Some(mhz(48));
-    config.rcc.pll48 = true;
-    let p = embassy_stm32::init(config);
+    let p = embassy_stm32::init(config());
 
-    #[cfg(feature = "stm32f429zi")]
     let (mut sdmmc, mut dma, mut clk, mut cmd, mut d0, mut d1, mut d2, mut d3) =
         (p.SDIO, p.DMA2_CH3, p.PC12, p.PD2, p.PC8, p.PC9, p.PC10, p.PC11);
 

tests/stm32/src/common.rs

@@ -14,6 +14,8 @@ teleprobe_meta::target!(b"nucleo-stm32g491re");
 teleprobe_meta::target!(b"nucleo-stm32g071rb");
 #[cfg(feature = "stm32f429zi")]
 teleprobe_meta::target!(b"nucleo-stm32f429zi");
+#[cfg(feature = "stm32f446re")]
+teleprobe_meta::target!(b"weact-stm32f446re");
 #[cfg(feature = "stm32wb55rg")]
 teleprobe_meta::target!(b"nucleo-stm32wb55rg");
 #[cfg(feature = "stm32h755zi")]
@@ -99,14 +101,25 @@ define_peris!(
 define_peris!(
     UART = USART1, UART_TX = PC4, UART_RX = PC5, UART_TX_DMA = DMA1_CH1, UART_RX_DMA = DMA1_CH2,
     SPI = SPI1, SPI_SCK = PA5, SPI_MOSI = PA7, SPI_MISO = PA6, SPI_TX_DMA = DMA1_CH1, SPI_RX_DMA = DMA1_CH2,
+    DAC = DAC1, DAC_PIN = PA4,
     @irq UART = {USART1 => embassy_stm32::usart::InterruptHandler<embassy_stm32::peripherals::USART1>;},
 );
 #[cfg(feature = "stm32f429zi")]
 define_peris!(
     UART = USART6, UART_TX = PG14, UART_RX = PG9, UART_TX_DMA = DMA2_CH6, UART_RX_DMA = DMA2_CH1,
     SPI = SPI1, SPI_SCK = PA5, SPI_MOSI = PA7, SPI_MISO = PA6, SPI_TX_DMA = DMA2_CH3, SPI_RX_DMA = DMA2_CH2,
+    DAC = DAC, DAC_PIN = PA4,
+    CAN = CAN1, CAN_RX = PD0, CAN_TX = PD1,
     @irq UART = {USART6 => embassy_stm32::usart::InterruptHandler<embassy_stm32::peripherals::USART6>;},
 );
+#[cfg(feature = "stm32f446re")]
+define_peris!(
+    UART = USART1, UART_TX = PA9, UART_RX = PA10, UART_TX_DMA = DMA2_CH7, UART_RX_DMA = DMA2_CH5,
+    SPI = SPI1, SPI_SCK = PA5, SPI_MOSI = PA7, SPI_MISO = PA6, SPI_TX_DMA = DMA2_CH3, SPI_RX_DMA = DMA2_CH2,
+    DAC = DAC, DAC_PIN = PA4,
+    CAN = CAN1, CAN_RX = PA11, CAN_TX = PA12,
+    @irq UART = {USART1 => embassy_stm32::usart::InterruptHandler<embassy_stm32::peripherals::USART1>;},
+);
 #[cfg(feature = "stm32wb55rg")]
 define_peris!(
     UART = LPUART1, UART_TX = PA2, UART_RX = PA3, UART_TX_DMA = DMA1_CH1, UART_RX_DMA = DMA1_CH2,
@@ -117,6 +130,7 @@ define_peris!(
 define_peris!(
     UART = USART1, UART_TX = PB6, UART_RX = PB7, UART_TX_DMA = DMA1_CH0, UART_RX_DMA = DMA1_CH1,
     SPI = SPI1, SPI_SCK = PA5, SPI_MOSI = PB5, SPI_MISO = PA6, SPI_TX_DMA = DMA1_CH0, SPI_RX_DMA = DMA1_CH1,
+    DAC = DAC1, DAC_PIN = PA4,
     @irq UART = {USART1 => embassy_stm32::usart::InterruptHandler<embassy_stm32::peripherals::USART1>;},
 );
 #[cfg(feature = "stm32h7a3zi")]
@@ -282,6 +296,27 @@ pub fn config() -> Config {
         config.rcc.sys = Sysclk::PLL1_P;
     }
 
+    #[cfg(feature = "stm32f446re")]
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hse = Some(Hse {
+            freq: Hertz(8_000_000),
+            mode: HseMode::Oscillator,
+        });
+        config.rcc.pll_src = PllSource::HSE;
+        config.rcc.pll = Some(Pll {
+            prediv: PllPreDiv::DIV4,
+            mul: PllMul::MUL168,
+            divp: Some(PllPDiv::DIV2), // 8mhz / 4 * 168 / 2 = 168 Mhz.
+            divq: Some(PllQDiv::DIV7), // 8mhz / 4 * 168 / 7 = 48 Mhz.
+            divr: None,
+        });
+        config.rcc.ahb_pre = AHBPrescaler::DIV1;
+        config.rcc.apb1_pre = APBPrescaler::DIV4;
+        config.rcc.apb2_pre = APBPrescaler::DIV2;
+        config.rcc.sys = Sysclk::PLL1_P;
+    }
+
     #[cfg(feature = "stm32f767zi")]
     {
         use embassy_stm32::rcc::*;