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