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AP_ADC: fix ADS1115 instantiation

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This can't be called on constructor since hal may not be initialized at
that time.
This commit is contained in:
Lucas De Marchi 2016-11-18 14:12:43 -02:00
parent 216cf53922
commit bc476e1987
1 changed files with 6 additions and 1 deletions
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7
libraries/AP_ADC/AP_ADC_ADS1115.cpp
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@ -109,7 +109,7 @@ static const uint16_t mux_table[ADS1115_CHANNELS_COUNT] = {
AP_ADC_ADS1115::AP_ADC_ADS1115() AP_ADC_ADS1115::AP_ADC_ADS1115()
: _dev(hal.i2c_mgr->get_device(ADS1115_I2C_BUS, ADS1115_I2C_ADDR)) : _dev{}
, _gain(ADS1115_PGA_4P096) , _gain(ADS1115_PGA_4P096)
, _channel_to_read(0) , _channel_to_read(0)
{ {
@ -123,6 +123,11 @@ AP_ADC_ADS1115::~AP_ADC_ADS1115()
bool AP_ADC_ADS1115::init() bool AP_ADC_ADS1115::init()
{ {
_dev = hal.i2c_mgr->get_device(ADS1115_I2C_BUS, ADS1115_I2C_ADDR);
if (!_dev) {
return false;
}
_gain = ADS1115_PGA_4P096; _gain = ADS1115_PGA_4P096;
_dev->register_periodic_callback(100000, FUNCTOR_BIND_MEMBER(&AP_ADC_ADS1115::_update, bool)); _dev->register_periodic_callback(100000, FUNCTOR_BIND_MEMBER(&AP_ADC_ADS1115::_update, bool));