Add F7 example

embassy-stm32/build.rs

@@ -483,7 +483,9 @@ fn main() {
         (("i2c", "TX"), quote!(crate::i2c::TxDma)),
         (("dcmi", "DCMI"), quote!(crate::dcmi::FrameDma)),
         (("dcmi", "PSSI"), quote!(crate::dcmi::FrameDma)),
-        (("sdmmc", "SDIO"), quote!(crate::sdmmc::SdmmcDma)),
+        // Same channel is used for RX/TX
+        (("sdmmc", "RX"), quote!(crate::sdmmc::SdmmcDma)),
+        (("sdmmc", "RX"), quote!(crate::sdmmc::SdmmcDma)),
     ]
     .into();
 

examples/stm32f7/src/bin/sdmmc.rs

@@ -0,0 +1,43 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+
+use embassy::executor::Spawner;
+use embassy_stm32::sdmmc::Sdmmc;
+use embassy_stm32::time::U32Ext;
+use embassy_stm32::{interrupt, Config, Peripherals};
+use example_common::*;
+
+fn config() -> Config {
+    let mut config = Config::default();
+    config.rcc.sys_ck = Some(200.mhz().into());
+    config
+}
+
+#[embassy::main(config = "config()")]
+async fn main(_spawner: Spawner, p: Peripherals) -> ! {
+    info!("Hello World!");
+
+    let irq = interrupt::take!(SDMMC1);
+
+    let mut sdmmc = Sdmmc::new(
+        p.SDMMC1,
+        (p.PC12, p.PD2, p.PC8, p.PC9, p.PC10, p.PC11),
+        irq,
+        Default::default(),
+        p.DMA2_CH3
+    );
+
+    info!("Configured clock: {}", sdmmc.clock.0);
+
+    unwrap!(sdmmc.init_card(25.mhz()).await);
+
+    let card = unwrap!(sdmmc.card());
+
+    info!("Card: {:#?}", Debug2Format(card));
+
+    loop {}
+}