Files
micropython/tests/multi_extmod/machine_can_01_rxtx_simple.py
T
Angus Gratton 6cac2d275d
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stm32: Add machine.CAN implementation.
Implemented according to API docs in a parent comment.

Adds new multi_extmod/machine_can_* tests which pass when testing between
NUCLEO_G474RE, NUCLEO_H723ZG and PYBDV11.

This work was mostly funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 17:36:50 +11:00

36 lines
637 B
Python

from machine import CAN
import time
ID_0 = 0x50
ID_1 = 0x50333
FLAGS_1 = CAN.FLAG_EXT_ID # ID_1 is an extended CAN ID
can = CAN(1, 500_000)
can.set_filters(None) # receive all
def print_rx(can_id, data, flags, errors):
print(hex(can_id), bytes(data), hex(flags), hex(errors))
def instance0():
multitest.next()
# receive from instance1 first
while not (rx := can.recv()):
time.sleep(0)
print_rx(*rx)
# now send one
can.send(ID_0, b"1234")
def instance1():
multitest.next()
can.send(ID_1, b"ABCD", FLAGS_1)
while not (rx := can.recv()):
time.sleep(0)
print_rx(*rx)