sipÃo

gex/Unit.py

@@ -67,3 +67,24 @@ class Unit:
     def _on_event(self, evt:EventReport):
         """ Stub for an event handler """
         raise NotImplementedError("Missing _on_event() in Unit class \"%s\"" % self.__class__.__name__)
+
+    # --- utils ---
+
+    def pins2int(self, list_or_int):
+        if type(list_or_int) != int:
+            p = 0
+            for pin in list_or_int:
+                p |= 1 << pin
+            return p
+        else:
+            return list_or_int
+
+    def pins2list(self, list_or_int):
+        if type(list_or_int) == int:
+            L = []
+            for i in range(0,32): # this is up to 32 in order to allow using it also for adc channels
+                if list_or_int & (1 << i) != 0:
+                    L.append(i)
+            return L
+        else:
+            return list_or_int

gex/__init__.py

@@ -17,6 +17,7 @@ from gex.units.SPI import SPI
 from gex.units.USART import USART
 from gex.units.OneWire import OneWire
 from gex.units.ADC import ADC
+from gex.units.SIPO import SIPO
 
 
 # General, low level

gex/units/ADC.py

@@ -319,15 +319,11 @@ class ADC(gex.Unit):
         Set which channels should be active.
         """
 
-        word = 0
-        for c in channels:
-            word |= 1 << c
-
         pb = gex.PayloadBuilder()
-        pb.u32(word)
+        pb.u32(self.pins2int(channels))
 
         self._send(cmd=CMD_ENABLE_CHANNELS, pld=pb.close(), confirm=confirm)
-        self.channels = channels
+        self.channels = self.pins2list(channels)
 
     def _parse_buffer(self, buf):
         """
@@ -414,7 +410,10 @@ class ADC(gex.Unit):
         self._query_async(cmd=CMD_STREAM_START, callback=self._on_stream_capt)
 
     def stream_stop(self, delay=0.1, confirm=True):
-        """ Stop a stream """
+        """
+        Stop a stream. Delay is an extra time before removing the listener
+        to let the queued frames to finish being received.
+        """
         if not self._stream_running:
             raise Exception("Not streaming")
 

gex/units/DIn.py

@@ -23,24 +23,24 @@ class DIn(gex.Unit):
         pp = gex.PayloadParser(msg)
         return pp.u16()
 
-    def arm(self, pins:int, auto:bool=False, confirm:bool=False):
+    def arm(self, pins, auto:bool=False, confirm:bool=False):
         """
         Arm pins for single shot event generation
         pins - array of pin indices to arm
         auto - use auto trigger (auto re-arm after hold-off)
         """
         pb = gex.PayloadBuilder()
-        pb.u16(pins)
+        pb.u16(self.pins2int(pins))
         self._send(0x02 if auto else 0x01, pb.close())
 
-    def disarm(self, pins:int, confirm:bool=False):
+    def disarm(self, pins, confirm:bool=False):
         """
         DisArm pins
         pins - array of pin indices to arm
         """
 
         pb = gex.PayloadBuilder()
-        pb.u16(pins)
+        pb.u16(self.pins2int(pins))
         self._send(0x03, pb.close())
 
     def on_trigger(self, sensitive_pins, callback):
@@ -50,24 +50,17 @@ class DIn(gex.Unit):
         Arguments are: pins snapshot, timestamp
         """
 
-        if type(sensitive_pins) == int:
-            L = []
-            for i in range(0,16):
-                if sensitive_pins & (1 << i) != 0:
-                    L.append(i)
-            sensitive_pins = L
-
-        for i in sensitive_pins:
+        for i in self.pins2list(sensitive_pins):
             self.handlers[i] = callback
 
     def _on_event(self, evt:EventReport):
         if evt.code == 0x00:
             # trigger interrupt
             pp = gex.PayloadParser(evt.payload)
-            triggersource = pp.u16()
+            triggersources = pp.u16() # multiple can happen at once
             snapshot = pp.u16()
 
             for i in range(0,16):
-                if triggersource & (1<<i):
+                if triggersources & (1<<i):
                     if i in self.handlers:
                         self.handlers[i](snapshot, evt.timestamp)

gex/units/DOut.py

@@ -14,25 +14,25 @@ class DOut(gex.Unit):
         return 'DO'
 
     def write(self, pins:int, confirm=True):
-        """ Set pins to a value """
+        """ Set pins to a value - packed, as int """
         pb = gex.PayloadBuilder()
         pb.u16(pins)
         self._send(0x00, pb.close(), confirm=confirm)
 
-    def set(self, pins:int, confirm=True):
-        """ Set pins high """
+    def set(self, pins, confirm=True):
+        """ Set pins high - packed, int or list """
         pb = gex.PayloadBuilder()
-        pb.u16(pins)
+        pb.u16(self.pins2int(pins))
         self._send(0x01, pb.close(), confirm=confirm)
 
-    def clear(self, pins:int, confirm=True):
-        """ Set pins low """
+    def clear(self, pins, confirm=True):
+        """ Set pins low - packed, int or list """
         pb = gex.PayloadBuilder()
-        pb.u16(pins)
+        pb.u16(self.pins2int(pins))
         self._send(0x02, pb.close(), confirm=confirm)
 
-    def toggle(self, pins:int, confirm=True):
-        """ Toggle pins """
+    def toggle(self, pins, confirm=True):
+        """ Toggle pins - packed, int or list """
         pb = gex.PayloadBuilder()
-        pb.u16(pins)
+        pb.u16(self.pins2int(pins))
         self._send(0x03, pb.close(), confirm=confirm)

gex/units/I2C.py

@@ -10,7 +10,7 @@ class I2C(gex.Unit):
 
     def _begin_i2c_pld(self, address:int, a10bit:bool=False):
         pb = gex.PayloadBuilder()
-        if a10bit: address |= 0x8000
+        if a10bit: address |= 0x8000 # indication for the Unit driver that it's a 10b address
         pb.u16(address)
         return pb
 

gex/units/SIPO.py

@@ -0,0 +1,46 @@
+import gex
+
+CMD_WRITE = 0
+CMD_DIRECT_DATA = 1
+CMD_DIRECT_SHIFT = 2
+CMD_DIRECT_CLEAR = 3
+CMD_DIRECT_STORE = 4
+
+class SIPO(gex.Unit):
+    """
+    Multi-channel SIPO driver
+    Designed for loading up to 16 74xx595 or 74xx4094 serial-input-parallel-output shift registers
+    The number of drivers can be significantly expanded via daisy-chaining.
+    """
+
+    def _type(self):
+        return 'SIPO'
+
+    def load(self, buffers, confirm=True):
+        """ Load data - buffers is a list of lists or byte arrays """
+        if type(buffers[0]) == int:
+            buffers = [buffers]
+
+        pb = gex.PayloadBuilder()
+        for b in buffers:
+            pb.blob(b)
+
+        self._send(CMD_WRITE, pb.close(), confirm=confirm)
+
+    def set_data(self, packed:int, confirm=True):
+        """ Manually set the data pins """
+        pb = gex.PayloadBuilder()
+        pb.u16(packed)
+        self._send(CMD_DIRECT_DATA, pb.close(), confirm=confirm)
+
+    def shift(self, confirm=True):
+        """ Manually send a shift pulse (shift data one step further into the registers)  """
+        self._send(CMD_DIRECT_SHIFT, confirm=confirm)
+
+    def store(self, confirm=True):
+        """ Manually send a store pulse (copy the shift register data to the outputs) """
+        self._send(CMD_DIRECT_STORE, confirm=confirm)
+
+    def clear(self, confirm=True):
+        """ Manually send a clear pulse (if connected correctly, this immediately resets the shift register outputs) """
+        self._send(CMD_DIRECT_CLEAR, confirm=confirm)

gex/units/SPI.py

@@ -39,12 +39,12 @@ class SPI(gex.Unit):
         """
         self.query(slave, tbytes, rlen=0, rskip=0, confirm=confirm)
 
-    def multicast(self, slaves:int, tbytes, confirm=True):
+    def multicast(self, slaves, tbytes, confirm=True):
         """
         Write with multiple slaves at once.
-        Slaves is a right-aligned bitmap (eg. pins 0,2,3 would be 0b1101)
+        Slaves is a right-aligned bitmap (eg. pins 0,2,3 would be 0b1101), or a list of active positions
         """
         pb = gex.PayloadBuilder()
-        pb.u16(slaves)
+        pb.u16(self.pins2int(slaves))
         pb.blob(tbytes)
         self._send(0x01, pb.close(), confirm=confirm)

main.py

@@ -16,6 +16,12 @@ with gex.Client(transport) as client:
     #     print(s)
     #     client.ini_write(s)
 
+    if True:
+        sipo = gex.SIPO(client, 'sipo')
+        while True:
+            sipo.load([[0xFF], [0xAA], [0x11], [0x00]])
+            time.sleep(0.2)
+
     if False:
         adc = gex.ADC(client, 'adc')
         print("Enabled channels:", adc.get_channels())
@@ -30,7 +36,7 @@ with gex.Client(transport) as client:
                                                                                raw[17], smooth[17]))
             time.sleep(0.5)
 
-    if True:
+    if False:
         adc = gex.ADC(client, 'adc')
 
         adc.set_active_channels([1])

pymodoro.py

@@ -15,11 +15,12 @@ class Pymodoro:
         self.phase = PH_BREAK_OVER
         self.work_s = 0
         self.break_s = 0
+        self.color = 0x000000
         self.colors = [0x000000 for _ in range(0, LIGHT_CNT)]
 
-        client = gex.Client(gex.TrxRawUSB())
-        self.btn = gex.DIn(client, 'btn')
-        self.neo = gex.Neopixel(client, 'neo')
+        self.client = gex.Client(gex.TrxRawUSB())
+        self.btn = gex.DIn(self.client, 'btn')
+        self.neo = gex.Neopixel(self.client, 'neo')
         self.btn.on_trigger([0], self.on_btn)
 
         self.switch(PH_BREAK_OVER)
@@ -42,50 +43,75 @@ class Pymodoro:
         print("Switch to %s" % phase)
 
         if phase == PH_BREAK:
-            self.colors = [0x009900 for _ in range(0, LIGHT_CNT)]
+            self.color = 0x009900
             self.break_s = BK_TIME * 60
 
         elif phase == PH_BREAK_OVER:
-            self.colors = [0x662200 for _ in range(0, LIGHT_CNT)]
+            self.color = 0x662200
 
         elif phase == PH_WORK:
-            self.colors = [0x990000 for _ in range(0, LIGHT_CNT)]
+            self.color = 0x990000
             self.work_s = WK_TIME * 60
 
         elif phase == PH_WORK_OVER:
-            self.colors = [0x113300 for _ in range(0, LIGHT_CNT)]
+            self.color = 0x113300
 
+        self.colors = [self.color for _ in range(0, LIGHT_CNT)]
         self.phase = phase
 
-    def extinguish(self, dark, total):
+    def show_progress(self, dark, total):
         per_light = total / LIGHT_CNT
-        lights = int((dark + per_light / 2) / per_light)
-        for n in range(0, LIGHT_CNT - lights):
-            self.colors[n] = 0x000000
-
-    def tick(self):
+        lights = dark / per_light
+
+        lights /= 2
+
+        remainder = float(lights - int(lights))
+        if remainder == 0:
+            remainder = 1
+
+        # print("lights %f, remainder %f" % (lights, remainder))
+        for i in range(0, int(LIGHT_CNT/2)):
+            if i < int((LIGHT_CNT/2)-lights):
+                c = 0x000000
+            elif i == int((LIGHT_CNT/2)-lights):
+                r = (self.color&0xFF0000)>>16
+                g = (self.color&0xFF00)>>8
+                b = self.color&0xFF
+                c = (int(r*remainder))<<16 | (int(g*remainder))<<8 | (int(b*remainder))
+            else:
+                c = self.color
+
+            self.colors[i] = c
+            self.colors[LIGHT_CNT - 1 - i] = c
+
+    def tick(self, elapsed):
         if self.phase == PH_BREAK:
-            self.break_s -= 1
-            print("Break remain: %d s" % self.break_s)
-            self.extinguish(self.break_s, BK_TIME * 60)
+            self.break_s -= elapsed
+            # print("Break remain: %d s" % self.break_s)
+            self.show_progress(self.break_s, BK_TIME * 60)
 
-            if self.break_s == 0:
+            if self.break_s <= 0:
                 self.switch(PH_BREAK_OVER)
 
         elif self.phase == PH_WORK:
-            self.work_s -= 1
-            print("Work remain: %d s" % self.work_s)
-            self.extinguish(self.work_s, WK_TIME * 60)
+            self.work_s -= elapsed
+            # print("Work remain: %d s" % self.work_s)
+            self.show_progress(self.work_s, WK_TIME * 60)
 
-            if self.work_s == 0:
+            if self.work_s <= 0:
                 self.switch(PH_WORK_OVER)
 
         self.display()
 
     def run(self):
-        while True:
-            time.sleep(1)
-            self.tick()
+        step=0.5
+        try:
+            while True:
+                time.sleep(step)
+                self.tick(step)
+        except KeyboardInterrupt:
+            self.client.close()
+            print() # this puts the ^C on its own line
 
 
 a = Pymodoro()