1 files changed, 6 insertions, 0 deletions

diff --git a/embassy-macros/src/chip/stm32.rs b/embassy-macros/src/chip/stm32.rs
index 01c6a9cfd..e94c21a97 100644
--- a/embassy-macros/src/chip/stm32.rs
+++ b/embassy-macros/src/chip/stm32.rs
@@ -11,6 +11,8 @@ pub struct Args {
     pub sysclk: Option<u32>,
     #[darling(default)]
     pub pclk1: Option<u32>,
+    #[darling(default)]
+    pub require_pll48clk: bool,
 }
 
 pub fn generate(args: Args) -> TokenStream {
@@ -30,6 +32,10 @@ pub fn generate(args: Args) -> TokenStream {
         clock_cfg_args = quote! { #clock_cfg_args.pclk1(#mhz.mhz()) };
     }
 
+    if args.require_pll48clk {
+        clock_cfg_args = quote! { #clock_cfg_args.require_pll48clk() };
+    }
+
     quote!(
         use embassy_stm32::{rtc, interrupt, Peripherals, pac, hal::rcc::RccExt, hal::time::U32Ext};