diff --git a/rtic-macros/src/codegen/module.rs b/rtic-macros/src/codegen/module.rs
index cf066ef973..60905889e9 100644
--- a/rtic-macros/src/codegen/module.rs
+++ b/rtic-macros/src/codegen/module.rs
@@ -21,17 +21,6 @@ pub fn codegen(ctxt: Context, app: &App, analysis: &Analysis) -> TokenStream2 {
                 pub core: rtic::export::Peripherals
             ));
 
-            if app.args.peripherals {
-                let device = &app.args.device;
-
-                fields.push(quote!(
-                    /// Device peripherals (PAC)
-                    pub device: #device::Peripherals
-                ));
-
-                values.push(quote!(device: #device::Peripherals::steal()));
-            }
-
             fields.push(quote!(
                 /// Critical section token for init
                 pub cs: rtic::export::CriticalSection<'a>
diff --git a/rtic-macros/src/syntax/ast.rs b/rtic-macros/src/syntax/ast.rs
index 27e6773f7f..c3f2befa72 100644
--- a/rtic-macros/src/syntax/ast.rs
+++ b/rtic-macros/src/syntax/ast.rs
@@ -56,9 +56,6 @@ pub struct AppArgs {
     /// Device
     pub device: Path,
 
-    /// Peripherals
-    pub peripherals: bool,
-
     /// Interrupts used to dispatch software tasks
     pub dispatchers: Dispatchers,
 }
diff --git a/rtic-macros/src/syntax/parse/app.rs b/rtic-macros/src/syntax/parse/app.rs
index e797f75e37..2a5f8d8655 100644
--- a/rtic-macros/src/syntax/parse/app.rs
+++ b/rtic-macros/src/syntax/parse/app.rs
@@ -5,7 +5,7 @@ use proc_macro2::TokenStream as TokenStream2;
 use syn::{
     parse::{self, ParseStream, Parser},
     spanned::Spanned,
-    Expr, ExprArray, Fields, ForeignItem, Ident, Item, LitBool, Path, Token, Visibility,
+    Expr, ExprArray, Fields, ForeignItem, Ident, Item, Path, Token, Visibility,
 };
 
 use super::Input;
@@ -23,7 +23,6 @@ impl AppArgs {
         (|input: ParseStream<'_>| -> parse::Result<Self> {
             let mut custom = Set::new();
             let mut device = None;
-            let mut peripherals = true;
             let mut dispatchers = Dispatchers::new();
 
             loop {
@@ -58,17 +57,6 @@ impl AppArgs {
                         }
                     }
 
-                    "peripherals" => {
-                        if let Ok(p) = input.parse::<LitBool>() {
-                            peripherals = p.value;
-                        } else {
-                            return Err(parse::Error::new(
-                                ident.span(),
-                                "unexpected argument value; this should be a boolean",
-                            ));
-                        }
-                    }
-
                     "dispatchers" => {
                         if let Ok(p) = input.parse::<ExprArray>() {
                             for e in p.elems {
@@ -133,7 +121,6 @@ impl AppArgs {
 
             Ok(AppArgs {
                 device,
-                peripherals,
                 dispatchers,
             })
         })
diff --git a/rtic/CHANGELOG.md b/rtic/CHANGELOG.md
index 2d0a392f1a..374554fdc4 100644
--- a/rtic/CHANGELOG.md
+++ b/rtic/CHANGELOG.md
@@ -13,6 +13,8 @@ For each category, *Added*, *Changed*, *Fixed* add new entries at the top!
 
 ### Changed
 
+- `peripherals = ...` is removed
+- The context in init has removed `cx.device`
 - `cortex-m` set as an optional dependency
 - Moved `cortex-m`-related utilities from `rtic/lib.rs` to `rtic/export.rs`
 - Make async task priorities start at 0, instead of 1, to always start at the lowest priority
diff --git a/rtic/examples/async-delay.rs b/rtic/examples/async-delay.rs
index cdffa620ba..8c3fe1f1ba 100644
--- a/rtic/examples/async-delay.rs
+++ b/rtic/examples/async-delay.rs
@@ -9,7 +9,7 @@
 
 use panic_semihosting as _;
 
-#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0], peripherals = true)]
+#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0])]
 mod app {
     use cortex_m_semihosting::{debug, hprintln};
     use rtic_monotonics::systick::*;
diff --git a/rtic/examples/async-task.rs b/rtic/examples/async-task.rs
index 1ca1802160..6f5ab64157 100644
--- a/rtic/examples/async-task.rs
+++ b/rtic/examples/async-task.rs
@@ -15,7 +15,7 @@ use panic_semihosting as _;
 //   task can have a mutable reference stored.
 // - Spawning an async task equates to it being polled once.
 
-#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0], peripherals = true)]
+#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0])]
 mod app {
     use cortex_m_semihosting::{debug, hprintln};
 
diff --git a/rtic/examples/async-timeout.rs b/rtic/examples/async-timeout.rs
index 7690408e1e..7e81c50ee2 100644
--- a/rtic/examples/async-timeout.rs
+++ b/rtic/examples/async-timeout.rs
@@ -11,7 +11,7 @@ use cortex_m_semihosting::{debug, hprintln};
 use panic_semihosting as _;
 use rtic_monotonics::systick::*;
 
-#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0], peripherals = true)]
+#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0])]
 mod app {
     use super::*;
     use futures::{future::FutureExt, select_biased};
diff --git a/rtic/examples/init.rs b/rtic/examples/init.rs
index 634d309d6d..c7e013cf29 100644
--- a/rtic/examples/init.rs
+++ b/rtic/examples/init.rs
@@ -8,7 +8,7 @@
 
 use panic_semihosting as _;
 
-#[rtic::app(device = lm3s6965, peripherals = true)]
+#[rtic::app(device = lm3s6965)]
 mod app {
     use cortex_m_semihosting::{debug, hprintln};
 
@@ -23,9 +23,6 @@ mod app {
         // Cortex-M peripherals
         let _core: cortex_m::Peripherals = cx.core;
 
-        // Device specific peripherals
-        let _device: lm3s6965::Peripherals = cx.device;
-
         // Locals in `init` have 'static lifetime
         let _x: &'static mut u32 = cx.local.x;
 
diff --git a/rtic/examples/zero-prio-task.rs b/rtic/examples/zero-prio-task.rs
index dbe1959e67..58b52101b8 100644
--- a/rtic/examples/zero-prio-task.rs
+++ b/rtic/examples/zero-prio-task.rs
@@ -15,7 +15,7 @@ pub struct NotSend {
     _0: PhantomData<*const ()>,
 }
 
-#[rtic::app(device = lm3s6965, peripherals = true)]
+#[rtic::app(device = lm3s6965)]
 mod app {
     use super::NotSend;
     use core::marker::PhantomData;