alexey.zholtikov/upm
1
0
Fork 0
mirror of https://github.com/eclipse/upm.git synced 2025-12-16 22:05:18 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

mpu9150: option to disable I2C bypass setting

Browse Source 
The existing hardcoded logic enables i2c bypass mode for AK8975.
This can cause the accelerometer to disappear on I2C bus. We add
a new member as a switch that can be used to disable bypass.

Change-Id: I2c61f4910d46ffb5940bb3c14b58bc65984fd12e
Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Jianxun Zhang
2015-10-19 00:41:34 -07:00
committed by Mihai Tudor Panu
parent fd509c7d79
commit ac21c9336b
2 changed files with 27 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
src/mpu9150/mpu9150.cxx
View File

@@ -31,11 +31,12 @@
using namespace upm;
using namespace std;
MPU9150::MPU9150 (int bus, int address, int magAddress) :
MPU9150::MPU9150 (int bus, int address, int magAddress, bool enableAk8975) :
m_mag(0), MPU60X0(bus, address)
{
m_magAddress = magAddress;
m_i2cBus = bus;
m_enableAk8975 = enableAk8975;
}
MPU9150::~MPU9150()
@@ -54,26 +55,30 @@ bool MPU9150::init()
return false;
}
// Now, we need to enable I2C bypass on the MPU60X0 component. This
// will allow us to access the AK8975 Magnetometer on I2C addr 0x0c.
if (!enableI2CBypass(true))
// Enabling I2C bypass will allow us to access the
// AK8975 Magnetometer on I2C addr 0x0c.
if (m_enableAk8975 == true)
{
throw std::runtime_error(std::string(__FUNCTION__) +
": Unable to enable I2C bypass");
return false;
}
if (!enableI2CBypass(true))
{
throw std::runtime_error(std::string(__FUNCTION__) +
": Unable to enable I2C bypass");
return false;
}
// Now that we've done that, create an AK8975 instance and
// initialize it.
m_mag = new AK8975(m_i2cBus, m_magAddress);
// Now that we've done that, create an AK8975 instance and
// initialize it.
if (!m_mag->init())
{
throw std::runtime_error(std::string(__FUNCTION__) +
": Unable to init magnetometer");
delete m_mag;
m_mag = 0;
return false;
m_mag = new AK8975(m_i2cBus, m_magAddress);
if (!m_mag->init())
{
throw std::runtime_error(std::string(__FUNCTION__) +
": Unable to init magnetometer");
delete m_mag;
m_mag = 0;
return false;
}
}
return true;