blob: ecc95e62ae57046d46581ac8e69c00522edf60d2 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
# Test machine.UART.IRQ_RX firing for each character received.
#
# IMPORTANT: This test requires hardware connections: the UART TX and RX
# pins must be wired together.
try:
from machine import UART
UART.IRQ_RX
except (ImportError, AttributeError):
print("SKIP")
raise SystemExit
import time, sys
byte_by_byte = False
# 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 "pyboard" in sys.platform:
uart_id = 4
tx_pin = None # PA0
rx_pin = None # PA1
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"
elif "nrf" in sys.platform:
uart_id = 0
tx_pin = None
rx_pin = None
elif "renesas-ra" in sys.platform:
uart_id = 9
tx_pin = None # P602 @ RA6M2
rx_pin = None # P601 @ RA6M2
elif "CC3200" in sys.implementation._machine:
# CC3200 doesn't work because it's too slow and has an allocation error in the handler.
print("SKIP")
raise SystemExit
else:
print("Please add support for this test on this platform.")
raise SystemExit
def irq(u):
print("IRQ_RX:", bool(u.irq().flags() & u.IRQ_RX), "data:", u.read(1))
text = "1234"
# Test that the IRQ is called for each byte received.
# Use slow baudrates so that the IRQ has time to run.
for bits_per_s in (2400, 9600):
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_RX)
print("write", bits_per_s)
if byte_by_byte:
# slow devices need data to be sent slow
for c in text:
uart.write(c)
uart.flush()
else:
uart.write(text)
uart.flush()
time.sleep_ms(100)
print("done")
|
