Create ad5292.py

Author: markuskreitzer

ad5292.py

@@ -0,0 +1,44 @@
+from machine import Pin, SPI
+import time
+
+class AD5292:
+    def __init__(self, spi_bus, cs_pin, spi_freq=50000):
+        self.cs = Pin(cs_pin, Pin.OUT)
+        self.cs.value(1)  # Chip select is active low
+        self.spi = SPI(spi_bus, baudrate=spi_freq, polarity=0, phase=1)
+        self.spi.init(baudrate=spi_freq, polarity=0, phase=1)
+
+    def set_wiper_position(self, position):
+        if position > 1023:
+            return False  # Invalid position value
+        command = (0x01 << 10) | (position & 0x03FF)
+        self._send_command(command)
+        time.sleep_ms(6)
+        return True  # Successful operation
+
+    def _send_command(self, command):
+        self.cs.value(0)
+        self.spi.write(bytearray([(command >> 8) & 0xFF, command & 0xFF]))
+        self.cs.value(1)
+
+    def read_control_register(self):
+        command = (0x02 << 10)  # Assuming this is the correct command for reading the control register
+        self._send_command(command)
+        # Read response from the device
+        response = bytearray(2)
+        self.cs.value(0)
+        self.spi.readinto(response)
+        self.cs.value(1)
+        return response[1]  # Assuming the control register value is in the LSB
+
+    def write_control_register(self, value):
+        if value > 7:
+            return False  # Invalid control register value
+        command = (0x03 << 10) | (value & 0x07)  # Assuming this is the correct command for writing the control register
+        self._send_command(command)
+        return True
+
+    def close(self):
+        self.spi.deinit()
+
+