54 lines
1.8 KiB
Python
54 lines
1.8 KiB
Python
#!/usr/bin/env python
|
|
|
|
# Author: Brendan Le Foll <brendan.le.foll@intel.com>
|
|
# Copyright (c) 2014 Intel Corporation.
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be
|
|
# included in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
|
|
|
|
import mraa
|
|
|
|
HMC5883L_CONF_REG_A = 0x00
|
|
HMC5883L_CONF_REG_B = 0x01
|
|
HMC5883L_CONT_MODE = 0x00
|
|
HMC5883L_DATA_REG = 0x03
|
|
GA_1_3_REG = 0x01
|
|
|
|
x = mraa.I2c(0)
|
|
x.address(0x1E)
|
|
x.writeReg(HMC5883L_CONF_REG_B, GA_1_3_REG)
|
|
x.writeReg(HMC5883L_CONF_REG_B, HMC5883L_CONT_MODE)
|
|
|
|
x.address(0x1E)
|
|
x.write(HMC5883L_DATA_REG)
|
|
|
|
# this method takes a char* as an input where sizeof(m) defines the read size
|
|
x.address(0x1E)
|
|
m = " "
|
|
print (x.read(m))
|
|
print (m)
|
|
|
|
x.address(0x1E)
|
|
x.write(HMC5883L_DATA_REG)
|
|
|
|
# this method simply takes a size_t arg and returns an std::string, however
|
|
# it's less efficient
|
|
x.address(0x1E)
|
|
print (x.read(6))
|