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ims: Updated IMS sensor addressing

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The IMS library will now change its I2C address after resetting the HW to a new
address.  It will attempt to close the mraa context and re-init each
time.

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck
2017-05-31 14:15:33 -07:00
parent 2b70bea44f
commit da18bac925
4 changed files with 73 additions and 32 deletions
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12
examples/c++/ims.cxx
View File

@ -46,19 +46,25 @@ int main(int argc, char **argv)
// Instantiate a IMS instance using i2c bus 0 and default address
upm::IMS sensor(0);
int i2c_addr_cur = IMS_ADDRESS_DEFAULT + 1;
while (shouldRun)
{
std::cout << "Version: "
std::cout << std::hex << "Version: 0x"
<< sensor.get_version()
<< " light: "
<< " light: 0x"
<< sensor.get_light()
<< " moisture: "
<< " moisture: 0x"
<< sensor.get_moisture()
<< " temp: "
<< sensor.get_temperature()
<< " C"
<< std::endl;
// Change the address and continue
if (i2c_addr_cur >= 128) i2c_addr_cur = 1;
std::cout << "Changing device address to 0x" << i2c_addr_cur
<< std::endl;
sensor.reset_i2c_address(i2c_addr_cur++);
sleep(1);
}
//! [Interesting]

13
examples/c/ims.c
View File

@ -50,6 +50,8 @@ int main()
return 1;
}
int i2c_addr_cur = IMS_ADDRESS_DEFAULT + 1;
// Every second, sample the sensor outputs
while (shouldRun)
{
@ -62,8 +64,19 @@ int main()
printf("Version: %d light: 0x%04x moisture: 0x%04x temp: %3.2f C\n",
version, light, moisture, temp/10.0);
else
{
printf("Failed to read IMS sensor data...\n");
break;
}
// Change the address and continue
if (i2c_addr_cur >= 128) i2c_addr_cur = 1;
printf("Changing device address to 0x%02x\n", i2c_addr_cur);
if (ims_reset_i2c_address(sensor, i2c_addr_cur++) != UPM_SUCCESS)
{
printf("Failed to change IMS I2C address...\n");
break;
}
upm_delay(1);
}