add pin combinations

Author: xoviat

Cargo.toml

@@ -71,7 +71,7 @@ rt = ["stm32f4/rt"]
 # so it's intended for e.g. stm32f405/415 to both enable stm32f4/stm32f405.
 stm32f401 = ["stm32f4/stm32f401", "device-selected"]
 stm32f405 = ["stm32f4/stm32f405", "device-selected", "has-can"]
-stm32f407 = ["stm32f4/stm32f407", "device-selected"]
+stm32f407 = ["stm32f4/stm32f407", "device-selected", "has-can"]
 stm32f410 = ["stm32f4/stm32f410", "device-selected"]
 stm32f411 = ["stm32f4/stm32f411", "device-selected"]
 stm32f412 = ["stm32f4/stm32f412", "device-selected"]

src/can.rs

@@ -1,27 +1,13 @@
 //! # Controller Area Network (CAN) Interface
 //!
-//!
-//! TX: Alternate Push-Pull Output
-//! RX: Input Floating Input
-//!
-//! ### CAN1
-//!
-//! | Function | Pins  |
-//! |----------|-------|
-//! | TX       | PB9   |
-//! | RX       | PB8   |
-//!
-//! ### CAN2
-//!
-//! | Function | Pins  |
-//! |----------|-------|
-//! | TX       | PB13  |
-//! | RX       | PB12  |
 
 use crate::bb;
 use crate::gpio::{
     gpioa::{PA11, PA12},
     gpiob::{PB12, PB13, PB5, PB6, PB8, PB9},
+    gpiod::{PD0, PD1},
+    gpioh::PH13,
+    gpioi::PI9,
     Alternate, AF9,
 };
 use crate::pac::{CAN1, CAN2};
@@ -44,7 +30,6 @@ pub trait Pins: sealed::Sealed {
 /*
     order: tx, rx similar to serial
 */
-
 macro_rules! pins {
     ($($PER:ident => ($tx:ident, $rx:ident),)+) => {
         $(
@@ -56,9 +41,17 @@ macro_rules! pins {
     }
 }
 
+/*
+    See DS8626 Rev 9 Table 9.
+
+    Applies to stm32f405, stm32f407, stm32f446.
+    To add MCUs, add has-can and check the pins.
+*/
 pins! {
     CAN1 => (PA12, PA11),
     CAN1 => (PB9, PB8),
+    CAN1 => (PD1, PD0),
+    CAN1 => (PH13, PI9),
     CAN2 => (PB13, PB12),
     CAN2 => (PB6, PB5),
 }
@@ -108,6 +101,14 @@ where
         Instance::enable(apb);
         Can { _peripheral: can }
     }
+
+    pub fn new_unchecked<P>(can: Instance, apb: &mut APB1) -> Can<Instance>
+    where
+        P: Pins<Instance = Instance>,
+    {
+        Instance::enable(apb);
+        Can { _peripheral: can }
+    }
 }
 
 unsafe impl bxcan::Instance for Can<CAN1> {