From 3bf06dce4ab0b0e8ef2475bbf44564eeee6867ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konrad=20N=C3=B6lle?= <konrad@familie-noelle.de>
Date: Thu, 30 Mar 2023 18:22:14 +0200
Subject: [PATCH] Skip /32 AHB prescaler

---
 src/rcc.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/rcc.rs b/src/rcc.rs
index 1a8af53..f6c7825 100755
--- a/src/rcc.rs
+++ b/src/rcc.rs
@@ -418,6 +418,8 @@ impl RccExt for RCC {
 
         let ahb_freq = match cfgr.ahb_pre {
             AHBPrescaler::NotDivided => sys_clk,
+            // skip /32
+            pre if pre as u8 & 0b0100 > 0 => sys_clk / (1 << (pre as u8 - 6)),
             pre => sys_clk / (1 << (pre as u8 - 7)),
         };