From 8c8f7f12c3bfc132b7fad9df80559e474ed66b66 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Tj=C3=A4der?= <henrik@grepit.se>
Date: Tue, 14 Dec 2021 21:52:57 +0100
Subject: Idle: Switch to NOP instead of WFI

Add example how to get old WFI behaviour
---
 macros/src/codegen/idle.rs     | 2 +-
 macros/src/codegen/pre_init.rs | 7 -------
 2 files changed, 1 insertion(+), 8 deletions(-)

(limited to 'macros/src')

diff --git a/macros/src/codegen/idle.rs b/macros/src/codegen/idle.rs
index d653931..0dededa 100644
--- a/macros/src/codegen/idle.rs
+++ b/macros/src/codegen/idle.rs
@@ -85,7 +85,7 @@ pub fn codegen(
             vec![],
             None,
             quote!(loop {
-                rtic::export::wfi()
+                rtic::export::nop()
             }),
         )
     }
diff --git a/macros/src/codegen/pre_init.rs b/macros/src/codegen/pre_init.rs
index 42cc055..7aaf20f 100644
--- a/macros/src/codegen/pre_init.rs
+++ b/macros/src/codegen/pre_init.rs
@@ -122,12 +122,5 @@ pub fn codegen(app: &App, analysis: &Analysis, extra: &Extra) -> Vec<TokenStream
             ));
         }
     }
-
-    // If there's no user `#[idle]` then optimize returning from interrupt handlers
-    if app.idle.is_none() {
-        // Set SLEEPONEXIT bit to enter sleep mode when returning from ISR
-        stmts.push(quote!(core.SCB.scr.modify(|r| r | 1 << 1);));
-    }
-
     stmts
 }
-- 
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