Add network device driver model, netdev

examples/net/webclient/rtl8720dn.go

@@ -0,0 +1,29 @@
+//go:build wioterminal
+
+// +build: wioterminal
+
+package main
+
+import (
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+var cfg = rtl8720dn.Config{
+	// WiFi AP credentials
+	Ssid:       ssid,
+	Passphrase: pass,
+	// Device
+	En: machine.RTL8720D_CHIP_PU,
+	// UART
+	Uart:     machine.UART3,
+	Tx:       machine.PB24,
+	Rx:       machine.PC24,
+	Baudrate: 614400,
+	// Watchdog (set to 0 to disable)
+	WatchdogTimeo: time.Duration(20 * time.Second),
+}
+
+var netdev = rtl8720dn.New(&cfg)