build tools update; instrumented device test

test/arduino_leonardo_bridge/arduino_leonardo_bridge.ino

@@ -0,0 +1,64 @@
+/*
+  bridge USB-serial to hardware-serial
+
+  for Arduinos based on ATmega32u4 (Leonardo and compatible Pro Micro, Micro)
+  hardware serial is configured with baud-rate, databits, stopbits, parity as send over USB
+
+  see https://github.com/arduino/Arduino/tree/master/hardware/arduino/avr/cores/arduino 
+  -> CDC.cpp|HardwareSerial.cpp for serial implementation details
+
+  this sketch is mainly for demonstration / test of CDC communication
+  performance as real usb-serial bridge would be inacceptable as each byte is send in separate USB packet
+*/
+
+uint32_t baud = 9600;
+uint8_t databits = 8;
+uint8_t stopbits = 1;
+uint8_t parity = 0;
+
+void setup() {
+  Serial.begin(baud); // USB
+  Serial1.begin(baud, SERIAL_8N1);
+}
+
+void loop() {
+  // show USB connected state
+  if (Serial) TXLED1;
+  else        TXLED0;
+
+  // configure hardware serial
+  if (Serial.baud() != baud ||
+      Serial.numbits() != databits ||
+      Serial.stopbits() != stopbits ||
+      Serial.paritytype() != parity) {
+    baud = Serial.baud();
+    databits = Serial.numbits();
+    stopbits = Serial.stopbits();
+    parity = Serial.paritytype();
+    uint8_t config = 0; // ucsrc register
+    switch (databits) {
+      case 5: break;
+      case 6: config |= 2; break;
+      case 7: config |= 4; break;
+      case 8: config |= 6; break;
+      default: config |= 6;
+    }
+    switch (stopbits) {
+      case 2: config |= 8;
+        // 1.5 stopbits not supported
+    }
+    switch (parity) {
+      case 1: config |= 0x30; break; // odd
+      case 2: config |= 0x20; break; // even
+        // mark, space not supported
+    }
+    Serial1.end();
+    Serial1.begin(baud, config);
+  }
+
+  // bridge
+  if (Serial.available() > 0)
+    Serial1.write(Serial.read());
+  if (Serial1.available() > 0)
+    Serial.write(Serial1.read());
+}

test/rfc2217_server.diff

@@ -0,0 +1,42 @@
+*** /n/archiv/python/rfc2217_server.py	2018-03-10 09:02:07.613771600 +0100
+--- rfc2217_server.py	2018-03-09 20:57:44.933717100 +0100
+***************
+*** 26,31 ****
+--- 26,32 ----
+              self,
+              logger=logging.getLogger('rfc2217.server') if debug else None)
+          self.log = logging.getLogger('redirector')
++         self.dlog = logging.getLogger('data')
+  
+      def statusline_poller(self):
+          self.log.debug('status line poll thread started')
+***************
+*** 55,60 ****
+--- 56,62 ----
+              try:
+                  data = self.serial.read(self.serial.in_waiting or 1)
+                  if data:
++                     self.dlog.debug("serial read: "+data.encode('hex'))
+                      # escape outgoing data when needed (Telnet IAC (0xff) character)
+                      self.write(b''.join(self.rfc2217.escape(data)))
+              except socket.error as msg:
+***************
+*** 76,81 ****
+--- 78,84 ----
+                  data = self.socket.recv(1024)
+                  if not data:
+                      break
++                 self.dlog.debug("socket read: "+data.encode('hex'))
+                  self.serial.write(b''.join(self.rfc2217.filter(data)))
+              except socket.error as msg:
+                  self.log.error('{}'.format(msg))
+***************
+*** 132,137 ****
+--- 135,141 ----
+      logging.basicConfig(level=logging.INFO)
+      #~ logging.getLogger('root').setLevel(logging.INFO)
+      logging.getLogger('rfc2217').setLevel(level)
++     logging.getLogger('data').setLevel(level)
+  
+      # connect to serial port
+      ser = serial.serial_for_url(args.SERIALPORT, do_not_open=True)

test/serial_test/serial_test.ino

@@ -0,0 +1,43 @@
+/* Copyright 2012 Google Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ *
+ * Project home page: http://code.google.com/p/usb-serial-for-android/
+ */
+
+// Sample Arduino sketch for use with usb-serial-for-android.
+// Prints an ever-increasing counter, and writes back anything
+// it receives.
+
+static int counter = 0;
+void setup() {
+  Serial.begin(115200);
+}
+
+void loop() {
+  Serial.print("Tick #");
+  Serial.print(counter++, DEC);
+  Serial.print("\n");
+
+  if (Serial.peek() != -1) {
+    Serial.print("Read: ");
+    do {
+      Serial.print((char) Serial.read());
+    } while (Serial.peek() != -1);
+    Serial.print("\n");
+  }
+  delay(1000);
+}