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update readme.md

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controllerzz 2025-12-11 10:54:09 +03:00
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@ -107,19 +107,14 @@ ISO-TP канал строится поверх CarBusDevice:
````python
from isotp_async.transport import IsoTpChannel
# предполагается, что dev уже открыт и канал CAN настроен
isotp = IsoTpChannel(
device=dev,
channel=1,
tx_id=0x7E0, # наш запрос
rx_id=0x7E8, # ответ ЭБУ
)
can_tr = CarBusCanTransport(dev, channel=1, rx_id=0x7E8)
isotp = IsoTpChannel(can_tr, tx_id=0x7E0, rx_id=0x7E8)
# отправить запрос ReadDataByIdentifier F190 (VIN)
await isotp.send(b"\x22\xF1\x90")
await isotp.send_pdu(b"\x22\xF1\x90")
# получить полный ответ (single или multi-frame)
resp = await isotp.recv(timeout=1.0)
resp = await isotp.recv_pdu(timeout=30.0)
print("ISO-TP:", resp.hex())
````