some 1w changes

gex/units/OneWire.py

@@ -40,28 +40,24 @@ class OneWire(gex.Unit):
 
         return devices
 
-    def query(self, request, rcount, addr=None, as_array=False):
+    def query(self, request, rcount, addr=0, verify=True, as_array=False):
         """ Query a device """
         pb = gex.PayloadBuilder()
-        if addr is not None:
-            pb.u64(addr)
-
+        pb.u64(addr)
         pb.u16(rcount)
-
+        pb.bool(verify)
         pb.blob(request)
 
-        resp = self._query(11 if addr is None else 13, pb.close())
+        resp = self._query(11, pb.close())
         return resp.data if not as_array else list(resp.data)
 
-    def write(self, payload, addr=None, confirm=True):
+    def write(self, payload, addr=0, confirm=True):
         """ Write to a device """
         pb = gex.PayloadBuilder()
-        if addr is not None:
-            pb.u64(addr)
-
+        pb.u64(addr)
         pb.blob(payload)
 
-        self._send(10 if addr is None else 12, pb.close(), confirm=confirm)
+        self._send(10, pb.close(), confirm=confirm)
 
     def wait_ready(self):
         """ Wait for DS18x20 to complete measurement (or other chip using the same polling mechanism) """

main.py

@@ -13,9 +13,8 @@ with gex.Client(transport) as client:
         client.ini_write(s)
 
     # search the bus
-    if False:
+    if True:
         ow = gex.OneWire(client, 'ow')
-        print("Presence: ", ow.test_presence())
         print("Devices:", ow.search())
 
     # search the bus for alarm
@@ -25,11 +24,11 @@ with gex.Client(transport) as client:
         print("Devices w alarm:", ow.search(alarm=True))
 
     # simple 1w check
-    if True:
+    if False:
         ow = gex.OneWire(client, 'ow')
         print("Presence: ", ow.test_presence())
         print("ROM: 0x%016x" % ow.read_address())
-        print("Scratch:", ow.query([0xBE], 9, as_array=True))
+        print("Scratch:", ow.query([0xBE], rcount=9, addr=0x7100080104c77610, as_array=True))
 
     # testing ds1820 temp meas without polling
     if False: