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- import pyb
- from pyb import I2C
- # test we can correctly create by id or name
- for bus in (-1, 0, 1, 2, 3, "X", "Y", "Z"):
- try:
- I2C(bus)
- print("I2C", bus)
- except ValueError:
- print("ValueError", bus)
- i2c = I2C(1)
- i2c.init(I2C.MASTER, baudrate=400000)
- print(i2c.scan())
- i2c.deinit()
- # use accelerometer to test i2c bus
- accel_addr = 76
- pyb.Accel() # this will init the MMA for us
- i2c.init(I2C.MASTER, baudrate=400000)
- print(i2c.scan())
- print(i2c.is_ready(accel_addr))
- print(i2c.mem_read(1, accel_addr, 7, timeout=500))
- i2c.mem_write(0, accel_addr, 0, timeout=500)
- i2c.send(7, addr=accel_addr)
- i2c.recv(1, addr=accel_addr)
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