@@ -1,16 +1,5 @@
-// +build bluepill nucleof103rb stm32f4disco
+// +build bluepill nucleof103rb stm32f4
 
 package machine
 
 // Peripheral abstraction layer for the stm32.
-
-const (
-	portA Pin = iota * 16
-	portB
-	portC
-	portD
-	portE
-	portF
-	portG
-	portH
-)
// +build bluepill nucleof103rb stm32f4disco

package machine

// Peripheral abstraction layer for the stm32.

const (
	portA Pin = iota * 16
	portB
	portC
	portD
	portE
	portF
	portG
	portH
)

I think this file should be deleted.