circuitpython/tests/pyb/i2c.py
Damien George 41f768f3f3 tests: Add a suite of tests specifically for the pyboard.
In tests/pyb is now a suite of tests that tests the pyb module on the
pyboard.  They include expected output files because we can't run
CPython on the pyboard to compare against.

run-tests script has now been updated to allow pyboard tests to be run.
Just pass the option --pyboard.  This runs all basic, float and pyb
tests.  Note that float/math-fun.py currently fails because not all math
functions are implemented in stmhal/.
2014-05-03 16:43:27 +01:00

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Python

from pyb import I2C
i2c = I2C(1)
i2c2 = I2C(2)
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 bus for us
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)