158 lines
3.5 KiB
Python
158 lines
3.5 KiB
Python
"""
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UART IRQ test for the CC3200 based boards.
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"""
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from machine import UART
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import os
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import time
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mch = os.uname().machine
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if "LaunchPad" in mch:
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uart_pins = [
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[("GP12", "GP13"), ("GP12", "GP13", "GP7", "GP6")],
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[("GP16", "GP17"), ("GP16", "GP17", "GP7", "GP6")],
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]
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elif "WiPy" in mch:
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uart_pins = [
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[("GP12", "GP13"), ("GP12", "GP13", "GP7", "GP6")],
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[("GP16", "GP17"), ("GP16", "GP17", "GP7", "GP6")],
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]
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else:
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raise Exception("Board not supported!")
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# just in case we have stdio duplicated on any of the uarts
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os.dupterm(None)
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uart0 = UART(0, 1000000, pins=uart_pins[0][0])
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uart1 = UART(1, 1000000, pins=uart_pins[1][0])
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uart0_int_count = 0
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uart1_int_count = 0
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def uart0_handler(uart_o):
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global uart0_irq
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global uart0_int_count
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if uart0_irq.flags() & UART.RX_ANY:
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uart0_int_count += 1
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def uart1_handler(uart_o):
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global uart1_irq
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global uart1_int_count
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if uart1_irq.flags() & UART.RX_ANY:
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uart1_int_count += 1
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uart0_irq = uart0.irq(trigger=UART.RX_ANY, handler=uart0_handler)
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uart1_irq = uart1.irq(trigger=UART.RX_ANY, handler=uart1_handler)
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uart0.write(b"123")
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# wait for the characters to be received
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while not uart1.any():
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pass
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time.sleep_us(100)
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print(uart1.any() == 3)
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print(uart1_int_count > 0)
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print(uart1_irq.flags() == 0)
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print(uart0_irq.flags() == 0)
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print(uart1.read() == b"123")
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uart1.write(b"12345")
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# wait for the characters to be received
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while not uart0.any():
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pass
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time.sleep_us(100)
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print(uart0.any() == 5)
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print(uart0_int_count > 0)
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print(uart0_irq.flags() == 0)
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print(uart1_irq.flags() == 0)
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print(uart0.read() == b"12345")
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# do it again
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uart1_int_count = 0
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uart0.write(b"123")
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# wait for the characters to be received
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while not uart1.any():
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pass
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time.sleep_us(100)
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print(uart1.any() == 3)
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print(uart1_int_count > 0)
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print(uart1_irq.flags() == 0)
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print(uart0_irq.flags() == 0)
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print(uart1.read() == b"123")
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# disable the interrupt
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uart1_irq.disable()
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# do it again
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uart1_int_count = 0
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uart0.write(b"123")
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# wait for the characters to be received
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while not uart1.any():
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pass
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time.sleep_us(100)
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print(uart1.any() == 3)
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print(uart1_int_count == 0) # no interrupt triggered this time
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print(uart1_irq.flags() == 0)
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print(uart0_irq.flags() == 0)
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print(uart1.read() == b"123")
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# enable the interrupt
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uart1_irq.enable()
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# do it again
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uart1_int_count = 0
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uart0.write(b"123")
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# wait for the characters to be received
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while not uart1.any():
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pass
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time.sleep_us(100)
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print(uart1.any() == 3)
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print(uart1_int_count > 0)
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print(uart1_irq.flags() == 0)
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print(uart0_irq.flags() == 0)
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print(uart1.read() == b"123")
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uart1_irq.init(trigger=UART.RX_ANY, handler=None) # No handler
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# do it again
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uart1_int_count = 0
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uart0.write(b"123")
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# wait for the characters to be received
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while not uart1.any():
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pass
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time.sleep_us(100)
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print(uart1.any() == 3)
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print(uart1_int_count == 0) # no interrupt handler called
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print(uart1_irq.flags() == 0)
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print(uart0_irq.flags() == 0)
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print(uart1.read() == b"123")
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# check for memory leaks
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for i in range(0, 1000):
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uart0_irq = uart0.irq(trigger=UART.RX_ANY, handler=uart0_handler)
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uart1_irq = uart1.irq(trigger=UART.RX_ANY, handler=uart1_handler)
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# next ones must raise
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try:
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uart0_irq = uart0.irq(trigger=100, handler=uart0_handler)
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except:
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print("Exception")
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try:
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uart0_irq = uart0.irq(trigger=0)
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except:
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print("Exception")
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try:
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uart0_irq = uart0.irq(trigger=UART.RX_ANY, wake=Sleep.SUSPENDED)
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except:
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print("Exception")
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uart0_irq.disable()
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uart1_irq.disable()
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