165 lines
3.9 KiB
Python
165 lines
3.9 KiB
Python
"""
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UART test for the CC3200 based boards.
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UART0 and UART1 must be connected together for this test to pass.
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"""
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from machine import UART
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from machine import Pin
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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_id_range = range(0, 2)
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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_id_range = range(0, 2)
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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 the repl duplicated on any of the uarts
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os.dupterm(None)
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for uart_id in uart_id_range:
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uart = UART(uart_id, 38400)
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print(uart)
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uart.init(57600, 8, None, 1, pins=uart_pins[uart_id][0])
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uart.init(baudrate=9600, stop=2, parity=UART.EVEN, pins=uart_pins[uart_id][1])
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uart.init(baudrate=115200, parity=UART.ODD, stop=0, pins=uart_pins[uart_id][0])
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uart = UART(baudrate=1000000)
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uart.sendbreak()
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uart = UART(baudrate=1000000)
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uart = UART()
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print(uart)
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uart = UART(baudrate=38400, pins=("GP12", "GP13"))
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print(uart)
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uart = UART(pins=("GP12", "GP13"))
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print(uart)
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uart = UART(pins=(None, "GP17"))
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print(uart)
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uart = UART(baudrate=57600, pins=("GP16", "GP17"))
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print(uart)
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# now it's time for some loopback tests between the uarts
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uart0 = UART(0, 1000000, pins=uart_pins[0][0])
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print(uart0)
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uart1 = UART(1, 1000000, pins=uart_pins[1][0])
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print(uart1)
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print(uart0.write(b"123456") == 6)
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print(uart1.read() == b"123456")
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print(uart1.write(b"123") == 3)
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print(uart0.read(1) == b"1")
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print(uart0.read(2) == b"23")
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print(uart0.read() == None)
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uart0.write(b"123")
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buf = bytearray(3)
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print(uart1.readinto(buf, 1) == 1)
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print(buf)
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print(uart1.readinto(buf) == 2)
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print(buf)
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# try initializing without the id
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uart0 = UART(baudrate=1000000, pins=uart_pins[0][0])
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uart0.write(b"1234567890")
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time.sleep_ms(2) # because of the fifo interrupt levels
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print(uart1.any() == 10)
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print(uart1.readline() == b"1234567890")
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print(uart1.any() == 0)
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uart0.write(b"1234567890")
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print(uart1.read() == b"1234567890")
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# tx only mode
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uart0 = UART(0, 1000000, pins=("GP12", None))
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print(uart0.write(b"123456") == 6)
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print(uart1.read() == b"123456")
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print(uart1.write(b"123") == 3)
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print(uart0.read() == None)
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# rx only mode
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uart0 = UART(0, 1000000, pins=(None, "GP13"))
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print(uart0.write(b"123456") == 6)
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print(uart1.read() == None)
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print(uart1.write(b"123") == 3)
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print(uart0.read() == b"123")
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# leave pins as they were (rx only mode)
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uart0 = UART(0, 1000000, pins=None)
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print(uart0.write(b"123456") == 6)
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print(uart1.read() == None)
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print(uart1.write(b"123") == 3)
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print(uart0.read() == b"123")
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# no pin assignment
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uart0 = UART(0, 1000000, pins=(None, None))
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print(uart0.write(b"123456789") == 9)
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print(uart1.read() == None)
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print(uart1.write(b"123456789") == 9)
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print(uart0.read() == None)
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print(Pin.board.GP12)
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print(Pin.board.GP13)
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# check for memory leaks...
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for i in range(0, 1000):
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uart0 = UART(0, 1000000)
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uart1 = UART(1, 1000000)
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# next ones must raise
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try:
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UART(0, 9600, parity=None, pins=("GP12", "GP13", "GP7"))
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except Exception:
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print("Exception")
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try:
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UART(0, 9600, parity=UART.ODD, pins=("GP12", "GP7"))
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except Exception:
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print("Exception")
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uart0 = UART(0, 1000000)
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uart0.deinit()
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try:
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uart0.any()
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except Exception:
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print("Exception")
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try:
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uart0.read()
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except Exception:
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print("Exception")
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try:
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uart0.write("abc")
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except Exception:
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print("Exception")
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try:
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uart0.sendbreak("abc")
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except Exception:
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print("Exception")
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try:
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UART(2, 9600)
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except Exception:
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print("Exception")
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for uart_id in uart_id_range:
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uart = UART(uart_id, 1000000)
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uart.deinit()
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# test printing an uninitialized uart
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print(uart)
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# initialize it back and check that it works again
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uart.init(115200)
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print(uart)
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uart.read()
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