Fix CAN2 remap

Author: apeng2012

CHANGELOG.md

@@ -23,6 +23,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Changed
 
+- Fix CAN2 remap
 - `Adc::new` instead of `Adc::adcX` and `AdcExt` trait
 - Update `bxcan`, `heapless`, `mfrc522`, reenable `mpu9250` example [#513]
 - PWM timer auto reload value is now preloaded/buffered [#453]

src/afio.rs

@@ -318,14 +318,14 @@ pub mod can2 {
 
     pin! {
         <Tx, Alternate<PushPull>> for [
-            PB6:  [0],
-            PB13: [1],
+            PB13: [0],
+            PB6:  [1],
         ],
     }
     pin! {
         <Rx, Input> default:Floating for [
-            PB5:  [0],
-            PB12: [1],
+            PB12: [0],
+            PB5:  [1],
         ],
     }