libs/kaptan-stm32f7: add STM32F722 crate shell

libs/kaptan-stm32f7/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "kaptan-stm32f7"
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+version.workspace = true
+
+[lints]
+workspace = true
+
+[features]
+default = []
+stm32f722 = ["stm32f7/stm32f722"]
+
+[dependencies]
+cortex-m = "0.7"
+kaptan-dma = { path = "../kaptan-dma" }
+kaptan-spi = { path = "../kaptan-spi" }
+kaptan-time = { path = "../kaptan-time" }
+stm32f7 = { version = "0.16", default-features = false }

libs/kaptan-stm32f7/src/lib.rs

@@ -0,0 +1,14 @@
+//! STM32F7 peripheral drivers used by Kaptan boards.
+//!
+//! This crate is organized by MCU variant and peripheral route. A board chooses
+//! an MCU feature, owns its pin muxing and RTIC interrupt graph, then composes
+//! the typed peripheral drivers from the selected module. Generic telemetry
+//! policy and frame ownership deliberately do not belong here.
+
+#![no_std]
+
+#[cfg(not(feature = "stm32f722"))]
+compile_error!("select one supported STM32F7 variant feature, such as `stm32f722`");
+
+#[cfg(feature = "stm32f722")]
+pub mod stm32f722;