Add udev rules. Change start-up sequence (fixes race condition -- receiving UAT packets before init is complete).

image/10-stratux.rules

@@ -12,6 +12,10 @@ SUBSYSTEMS=="usb", ATTRS{idVendor}=="1546", ATTRS{idProduct}=="01a6", SYMLINK+="
 #SUBSYSTEMS=="usb", ATTRS{idVendor}=="1546", ATTRS{idProduct}=="01a7", SYMLINK+="vk172"
 #SUBSYSTEMS=="usb", ATTRS{idVendor}=="1546", ATTRS{idProduct}=="01a6", SYMLINK+="vk162"
 
+# Stratux uatradio.
+#  0424:9514 (LaunchPad)
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="0424", ATTRS{idProduct}=="9514", SYMLINK+="uatradio"
+
 
 
 # pl2303 devices are indistinguishable using idVendor and idProduct.

main/gen_gdl90.go

@@ -1533,7 +1533,6 @@ func main() {
 	crcInit() // Initialize CRC16 table.
 
 	sdrInit()
-	initUATRadioSerial()
 	pingInit()
 	initTraffic()
 
@@ -1574,6 +1573,10 @@ func main() {
 		globalStatus.CPUTemp = cpuTemp
 	})
 
+	// Start reading from serial UAT radio.
+	//FIXME: Follow 978 SDR option, or make a new one.
+	initUATRadioSerial()
+
 	reader := bufio.NewReader(os.Stdin)
 
 	if *replayFlag == true {

main/lowpower_uat.go

@@ -3,8 +3,10 @@ package main
 import (
 	"encoding/hex"
 	"errors"
+	"fmt"
 	"github.com/uavionix/serial"
 	"log"
+	"time"
 	"unsafe"
 )
 
@@ -25,7 +27,7 @@ func initUATRadioSerial() error {
 	// Init for FEC routines.
 	C.init_fec()
 	// Initialize port at 2Mbaud.
-	radioSerialConfig = &serial.Config{Name: "/dev/ttyACM0", Baud: 2000000}
+	radioSerialConfig = &serial.Config{Name: "/dev/uatradio", Baud: 2000000}
 	p, err := serial.OpenPort(radioSerialConfig)
 	if err != nil {
 		log.Printf("serial port err: %s\n", err.Error())
@@ -100,7 +102,7 @@ func processRadioMessage(msg []byte) {
 	//rssiDump978 := int16(1000 * (10 ^ (float64(rssiAdjusted) / 20)))
 	rssiDump978 := rssiRaw
 
-	_ := uint32(msg[1]) + (uint32(msg[2]) << 8) + (uint32(msg[3]) << 16) + (uint32(msg[4]) << 24) // Timestamp. Currently unused.
+	//_ := uint32(msg[1]) + (uint32(msg[2]) << 8) + (uint32(msg[3]) << 16) + (uint32(msg[4]) << 24) // Timestamp. Currently unused.
 
 	msg = msg[5:]