add client/server to avoid arduino reseting on connect

Author: conorpp

prog.py

@@ -0,0 +1,13 @@
+import requests, sys
+
+
+if len(sys.argv) != 3:
+    print 'usage: %s <port> <firmware.hex>' % sys.argv[0]
+    sys.exit(1)
+
+url = 'http://127.0.0.1:4040/'
+
+payload = {'port': sys.argv[1],  'firmware': open(sys.argv[2], 'r').read()}
+
+print requests.post(url, data = payload)
+

prog_client.py

@@ -0,0 +1,85 @@
+import serial, sys, struct, time
+from flask import Flask, request
+
+app = Flask(__name__)
+
+
+if len(sys.argv) < 2:
+    print 'usage: %s <port> <serial-port1> [serial-port2...]' % sys.argv[0]
+    sys.exit(1)
+
+class PI():
+    def __init__(self, com):
+        self.ser = serial.Serial(com, 1000000, timeout = 1)
+
+    def prog(self, firmware):
+
+        print 'Connected'
+
+        #f = open(firmware,'r').readlines()
+        f = firmware.splitlines()
+
+        # init Programming Interface (PI)
+        self.ser.write('\x01\x00')
+        x =struct.unpack('B', self.ser.read(1))[0]
+        print 'x:',hex(x)
+        assert(0x81 == x)
+
+        print 'PI initiated'
+
+        # erase device
+        self.ser.write('\x04\x00')
+        assert(0x84 == struct.unpack('B', self.ser.read(1))[0])
+
+        print 'Device erased'
+
+        # write hex file
+        total = 0
+        buf = ''
+        buf_size = 0
+        for i in f[1:-1]:  # skip first and second lines
+            assert(i[0] == ':')
+            size = int(i[1:3],16)
+            assert(size + 4 < 256)
+            if buf_size == 0:
+                addrh = int(i[3:5],16)
+                addrl = int(i[5:7],16)
+            assert(i[7:9] == '00')
+            data = i[9:9 + size*2]
+            assert(len(data) == size*2)
+
+            buf += data
+            buf_size += size
+
+            if buf_size > 175:
+                #print hex(addrh), hex(addrl), buf
+                self.ser.write([0x3, buf_size + 4, buf_size, 0, addrh, addrl])
+                self.ser.write(buf.decode('hex'))
+                assert(0x83 == struct.unpack('B', self.ser.read(1))[0])
+                total += buf_size
+                buf_size = 0
+                buf = ''
+                print 'Wrote %d bytes' % total
+
+        # reset device
+        self.ser.write('\x02\x00')
+        assert(0x82 == struct.unpack('B', self.ser.read(1))[0])
+
+        print 'Device reset'
+
+print 'Once'
+programmers = {}
+for i in sys.argv[1:]:
+    programmers[i] = PI(i)
+
+@app.route('/', methods=['POST'])
+def hello():
+    port=request.form['port']
+    firmware=request.form['firmware']
+
+    programmers[port].prog(firmware)
+
+    return 'Success'
+
+app.debug = True
+app.run(host='127.0.0.1', port = 4040, use_reloader=False, threaded = False)

prog_server.py

@@ -1 +1,3 @@
 pyserial
+flask
+request