71 lines
1.7 KiB
Python
71 lines
1.7 KiB
Python
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# Test machine.UART.IRQ_RXIDLE firing after a set of characters are received.
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#
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# IMPORTANT: This test requires hardware connections: the UART TX and RX
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# pins must be wired together.
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try:
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from machine import UART
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UART.IRQ_RXIDLE
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except (ImportError, AttributeError):
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print("SKIP")
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raise SystemExit
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import time, sys
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# Configure pins based on the target.
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if "esp32" in sys.platform:
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uart_id = 1
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tx_pin = 4
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rx_pin = 5
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elif "mimxrt" in sys.platform:
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uart_id = 1
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tx_pin = None
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elif "pyboard" in sys.platform:
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uart_id = 4
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tx_pin = None # PA0
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rx_pin = None # PA1
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elif "renesas-ra" in sys.platform:
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uart_id = 9
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tx_pin = None # P602 @ RA6M2
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rx_pin = None # P601 @ RA6M2
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elif "rp2" in sys.platform:
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uart_id = 0
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tx_pin = "GPIO0"
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rx_pin = "GPIO1"
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elif "samd" in sys.platform and "ItsyBitsy M0" in sys.implementation._machine:
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uart_id = 0
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tx_pin = "D1"
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rx_pin = "D0"
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byte_by_byte = True
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elif "samd" in sys.platform and "ItsyBitsy M4" in sys.implementation._machine:
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uart_id = 3
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tx_pin = "D1"
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rx_pin = "D0"
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else:
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print("Please add support for this test on this platform.")
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raise SystemExit
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def irq(u):
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print("IRQ_RXIDLE:", bool(u.irq().flags() & u.IRQ_RXIDLE), "data:", u.read())
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text = "12345678"
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# Test that the IRQ is called for each set of byte received.
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for bits_per_s in (2400, 9600, 115200):
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if tx_pin is None:
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uart = UART(uart_id, bits_per_s)
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else:
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uart = UART(uart_id, bits_per_s, tx=tx_pin, rx=rx_pin)
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uart.irq(irq, uart.IRQ_RXIDLE)
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print("write", bits_per_s)
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uart.write(text)
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uart.flush()
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print("ready")
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time.sleep_ms(100)
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print("done")
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