86 lines
2.2 KiB
Python
86 lines
2.2 KiB
Python
import board
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import analogio
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import digitalio
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def test_dac_analog(p_in, p_out):
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print(f"Running dac analog test with pin {p_in} as input and {p_out} as output\n")
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pin_in = analogio.AnalogIn(p_in)
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pin_out = analogio.AnalogOut(p_out)
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for v in range(0, 65536, 4096):
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pin_out.value = v
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print(f"Value {v} read as {pin_in.value}")
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pin_in.deinit()
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pin_out.deinit()
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def test_dac_digital(p_in, p_out):
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print(f"Running dac digital test with pin {p_in} as input and {p_out} as output")
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pin_in = digitalio.DigitalInOut(p_in)
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pin_out = analogio.AnalogOut(p_out)
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for v in range(0, 65536, 4096):
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pin_out.value = v
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print(f"Value {v} read as {pin_in.value}")
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pin_in.deinit()
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pin_out.deinit()
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def test_dual(pair1, pair2):
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# verifies that the DACs can be set independently
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print(f"Running pair test\n")
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pin1_in = analogio.AnalogIn(pair1[0])
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pin1_out = analogio.AnalogOut(pair1[1])
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pin2_in = analogio.AnalogIn(pair2[0])
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pin2_out = analogio.AnalogOut(pair2[1])
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for v in range(0, 65536, 4096):
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v2 = 65535 - v
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pin1_out.value = v
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pin2_out.value = v2
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print(f"Pair1: Value {v} read as {pin1_in.value}")
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print(f"Pair2: Value {v2} read as {pin2_in.value}")
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pin1_in.deinit()
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pin1_out.deinit()
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pin2_in.deinit()
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pin2_out.deinit()
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def test_analog_hilo(p_in, p_out):
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print(f"Running analog hilo test with pin {p_in} as input and {p_out} as output")
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pin_in = analogio.AnalogIn(p_in)
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pin_out = digitalio.DigitalInOut(p_out)
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pin_out.switch_to_output()
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for v in (False, True, False, True):
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pin_out.value = v
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print(f"Value {v} read as {pin_in.value}")
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pin_in.deinit()
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pin_out.deinit()
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def test_pair(pair):
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# FIXME: test_analog_hilo works fine alone, but fails when the other dac functions are executed
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test_analog_hilo(*pair)
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test_dac_analog(*pair)
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test_dac_digital(*pair)
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def main():
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pair1 = (board.A3, board.DAC1)
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pair2 = (board.A2, board.DAC2)
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print("running DAC1 tests")
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test_pair(pair1)
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print("running DAC2 tests")
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test_pair(pair2)
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print("running dual DAC tests")
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test_dual(pair1, pair2)
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main()
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