Skip /32 AHB prescaler

stm32-rs · Mar 30, 2023 · 3bf06dc · 3bf06dc
1 parent e6031a3
commit 3bf06dc
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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)),
         };