97 lines
3.0 KiB
Python
97 lines
3.0 KiB
Python
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# Test BLE re-connect after peripheral deepsleep.
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# instance0 needs to be a device capable of deepsleep without disconnecting the
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# REPL, eg. STM32WB55 Nucleo board with REPL on UART port.
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from micropython import const
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import time, machine, bluetooth
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TIMEOUT_MS = 4000
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_IRQ_CENTRAL_CONNECT = const(1)
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_IRQ_CENTRAL_DISCONNECT = const(2)
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_IRQ_PERIPHERAL_CONNECT = const(7)
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_IRQ_PERIPHERAL_DISCONNECT = const(8)
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waiting_events = {}
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def irq(event, data):
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if event == _IRQ_CENTRAL_CONNECT:
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print("_IRQ_CENTRAL_CONNECT")
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waiting_events[event] = data[0]
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elif event == _IRQ_CENTRAL_DISCONNECT:
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print("_IRQ_CENTRAL_DISCONNECT")
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elif event == _IRQ_PERIPHERAL_CONNECT:
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print("_IRQ_PERIPHERAL_CONNECT")
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waiting_events[event] = data[0]
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elif event == _IRQ_PERIPHERAL_DISCONNECT:
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print("_IRQ_PERIPHERAL_DISCONNECT")
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if event not in waiting_events:
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waiting_events[event] = None
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def wait_for_event(event, timeout_ms):
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t0 = time.ticks_ms()
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while time.ticks_diff(time.ticks_ms(), t0) < timeout_ms:
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if event in waiting_events:
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return waiting_events.pop(event)
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machine.idle()
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raise ValueError("Timeout waiting for {}".format(event))
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# Acting in peripheral role.
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def instance0():
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multitest.globals(BDADDR=ble.config("mac"))
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print("gap_advertise")
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ble.gap_advertise(20_000, b"\x02\x01\x06\x04\tMPY")
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multitest.next()
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# Wait for central to connect, then wait for it to disconnect.
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wait_for_event(_IRQ_CENTRAL_CONNECT, TIMEOUT_MS)
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wait_for_event(_IRQ_CENTRAL_DISCONNECT, TIMEOUT_MS)
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multitest.expect_reboot(resume="instance0_resume", delay_ms=100)
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machine.deepsleep(100)
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# Acting in peripheral role.
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def instance0_resume():
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# continue here after reboot
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print("restarted")
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print("gap_advertise")
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ble.gap_advertise(20_000, b"\x02\x01\x06\x04\tMPY")
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try:
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# Wait for central to connect, then disconnect it.
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conn_handle = wait_for_event(_IRQ_CENTRAL_CONNECT, TIMEOUT_MS)
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print("gap_disconnect:", ble.gap_disconnect(conn_handle))
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wait_for_event(_IRQ_CENTRAL_DISCONNECT, TIMEOUT_MS)
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finally:
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ble.active(0)
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# Acting in central role.
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def instance1():
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multitest.next()
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try:
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# Connect to peripheral and then disconnect.
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print("gap_connect")
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ble.gap_connect(*BDADDR)
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conn_handle = wait_for_event(_IRQ_PERIPHERAL_CONNECT, TIMEOUT_MS)
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print("gap_disconnect:", ble.gap_disconnect(conn_handle))
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wait_for_event(_IRQ_PERIPHERAL_DISCONNECT, TIMEOUT_MS)
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# Connect to peripheral and then let the peripheral disconnect us.
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# Extra scan timeout allows for the peripheral to receive the disconnect
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# event and start advertising again.
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print("gap_connect")
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ble.gap_connect(BDADDR[0], BDADDR[1], 5000)
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wait_for_event(_IRQ_PERIPHERAL_CONNECT, TIMEOUT_MS)
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wait_for_event(_IRQ_PERIPHERAL_DISCONNECT, TIMEOUT_MS)
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finally:
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ble.active(0)
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ble = bluetooth.BLE()
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ble.active(1)
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ble.irq(irq)
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