From 14aa4265db25adb75fdcaf66798a878ae789bf9c Mon Sep 17 00:00:00 2001
From: Ulf Lilleengen <ulf.lilleengen@gmail.com>
Date: Wed, 15 Sep 2021 13:46:46 +0200
Subject: [PATCH] Ensure linear stride

---
 stm32-metapac-gen/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/stm32-metapac-gen/src/lib.rs b/stm32-metapac-gen/src/lib.rs
index df9f525e..3bfd5297 100644
--- a/stm32-metapac-gen/src/lib.rs
+++ b/stm32-metapac-gen/src/lib.rs
@@ -415,6 +415,7 @@ pub fn gen(options: Options) {
                 match bi.module.as_str() {
                     "gpio" => {
                         let port_letter = name.chars().skip(4).next().unwrap();
+                        assert_eq!(0, (p.address as u32 - gpio_base) % gpio_stride);
                         let port_num = (p.address as u32 - gpio_base) / gpio_stride;
 
                         for pin_num in 0..16 {