added arm detector

main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"go-orange/orangefork"
 	"periph.io/x/conn/v3/gpio"
 	"periph.io/x/host/v3"
 	"periph.io/x/host/v3/orangepi"
@@ -9,6 +10,10 @@ import (
 )
 
 func main() {
+	fmt.Println(orangefork.Foo())
+	if 1 == 2-1 {
+		return
+	}
 	s, err := host.Init()
 	if err != nil {
 		fmt.Printf("%s", err)
@@ -20,22 +25,22 @@ func main() {
 	for l := gpio.Low; ; l = !l {
 
 		if err := orangepi.PA1_11.Out(l); err != nil {
-			fmt.Printf("PA1_11 %s", err)
+			fmt.Printf("PA1_11 %s\n", err)
 		}
 		if err := orangepi.PA1_12.Out(l); err != nil {
-			fmt.Printf("PA1_12 %s", err)
+			fmt.Printf("PA1_12 %s\n", err)
 		}
 		if err := orangepi.PA1_10.Out(l); err != nil {
-			fmt.Printf("PA1_10 %s", err)
+			fmt.Printf("PA1_10 %s\n", err)
 		}
 		if err := orangepi.PA1_8.Out(l); err != nil {
-			fmt.Printf("PA1_8 %s", err)
+			fmt.Printf("PA1_8 %s\n", err)
 		}
 		if err := orangepi.PA1_7.Out(l); err != nil {
-			fmt.Printf("PA1_7 %s", err)
+			fmt.Printf("PA1_7 %s\n", err)
 		}
 		if err := orangepi.PA1_5.Out(l); err != nil {
-			fmt.Printf("PA1_5 %s", err)
+			fmt.Printf("PA1_5 %s\n", err)
 		}
 		<-t.C
 		fmt.Println("tick")

orangefork/orangefork.go

@@ -0,0 +1,8 @@
+package orangefork
+
+func Foo() string {
+	if isArm {
+		return "is arm"
+	}
+	return "is not arm"
+}

orangefork/orangefork_arm64.go

@@ -0,0 +1,6 @@
+//go:build arm64
+// +build arm64
+
+package orangefork
+
+const isArm = true

orangefork/orangefork_other.go

@@ -0,0 +1,6 @@
+//go:build !arm && !arm64
+// +build !arm,!arm64
+
+package orangefork
+
+const isArm = false

orangefork/orangepi_arm.go

@@ -0,0 +1 @@
+package orangefork