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AP_InertialSensor: added register checking for LSM9DS0

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This commit is contained in:
Andrew Tridgell 2016-11-10 18:07:14 +11:00
parent 77a83c091a
commit 4be8f05ad4
2 changed files with 37 additions and 19 deletions
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50
libraries/AP_InertialSensor/AP_InertialSensor_LSM9DS0.cpp
View File

@ -456,6 +456,10 @@ bool AP_InertialSensor_LSM9DS0::_hardware_init()
uint8_t whoami; uint8_t whoami;
uint8_t tries; uint8_t tries;
// set flag for reading registers
_dev_gyro->set_read_flag(0x80);
_dev_accel->set_read_flag(0x80);
whoami = _register_read_g(WHO_AM_I_G); whoami = _register_read_g(WHO_AM_I_G);
if (whoami != LSM9DS0_G_WHOAMI) { if (whoami != LSM9DS0_G_WHOAMI) {
hal.console->printf("LSM9DS0: unexpected gyro WHOAMI 0x%x\n", (unsigned)whoami); hal.console->printf("LSM9DS0: unexpected gyro WHOAMI 0x%x\n", (unsigned)whoami);
@ -468,6 +472,10 @@ bool AP_InertialSensor_LSM9DS0::_hardware_init()
goto fail_whoami; goto fail_whoami;
} }
// setup for register checking
_dev_gyro->setup_checked_registers(6);
_dev_accel->setup_checked_registers(5);
for (tries = 0; tries < 5; tries++) { for (tries = 0; tries < 5; tries++) {
_dev_gyro->set_speed(AP_HAL::Device::SPEED_LOW); _dev_gyro->set_speed(AP_HAL::Device::SPEED_LOW);
_dev_accel->set_speed(AP_HAL::Device::SPEED_LOW); _dev_accel->set_speed(AP_HAL::Device::SPEED_LOW);
@ -525,8 +533,6 @@ uint8_t AP_InertialSensor_LSM9DS0::_register_read_xm(uint8_t reg)
{ {
uint8_t val = 0; uint8_t val = 0;
/* set read bit */
reg |= 0x80;
_dev_accel->read_registers(reg, &val, 1); _dev_accel->read_registers(reg, &val, 1);
return val; return val;
@ -536,21 +542,19 @@ uint8_t AP_InertialSensor_LSM9DS0::_register_read_g(uint8_t reg)
{ {
uint8_t val = 0; uint8_t val = 0;
/* set read bit */
reg |= 0x80;
_dev_gyro->read_registers(reg, &val, 1); _dev_gyro->read_registers(reg, &val, 1);
return val; return val;
} }
void AP_InertialSensor_LSM9DS0::_register_write_xm(uint8_t reg, uint8_t val) void AP_InertialSensor_LSM9DS0::_register_write_xm(uint8_t reg, uint8_t val, bool checked)
{ {
_dev_accel->write_register(reg, val); _dev_accel->write_register(reg, val, checked);
} }
void AP_InertialSensor_LSM9DS0::_register_write_g(uint8_t reg, uint8_t val) void AP_InertialSensor_LSM9DS0::_register_write_g(uint8_t reg, uint8_t val, bool checked)
{ {
_dev_gyro->write_register(reg, val); _dev_gyro->write_register(reg, val, checked);
} }
void AP_InertialSensor_LSM9DS0::_gyro_disable_i2c() void AP_InertialSensor_LSM9DS0::_gyro_disable_i2c()
@ -589,25 +593,25 @@ void AP_InertialSensor_LSM9DS0::_gyro_init()
CTRL_REG1_G_PD | CTRL_REG1_G_PD |
CTRL_REG1_G_ZEN | CTRL_REG1_G_ZEN |
CTRL_REG1_G_YEN | CTRL_REG1_G_YEN |
CTRL_REG1_G_XEN); CTRL_REG1_G_XEN, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
_register_write_g(CTRL_REG2_G, 0x00); _register_write_g(CTRL_REG2_G, 0x00, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
/* /*
* Gyro data ready on DRDY_G * Gyro data ready on DRDY_G
*/ */
_register_write_g(CTRL_REG3_G, CTRL_REG3_G_I2_DRDY); _register_write_g(CTRL_REG3_G, CTRL_REG3_G_I2_DRDY, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
_register_write_g(CTRL_REG4_G, _register_write_g(CTRL_REG4_G,
CTRL_REG4_G_BDU | CTRL_REG4_G_BDU |
CTRL_REG4_G_FS_2000DPS); CTRL_REG4_G_FS_2000DPS, true);
_set_gyro_scale(G_SCALE_2000DPS); _set_gyro_scale(G_SCALE_2000DPS);
hal.scheduler->delay(1); hal.scheduler->delay(1);
_register_write_g(CTRL_REG5_G, 0x00); _register_write_g(CTRL_REG5_G, 0x00, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
} }
@ -616,7 +620,7 @@ void AP_InertialSensor_LSM9DS0::_accel_init()
_accel_disable_i2c(); _accel_disable_i2c();
hal.scheduler->delay(1); hal.scheduler->delay(1);
_register_write_xm(CTRL_REG0_XM, 0x00); _register_write_xm(CTRL_REG0_XM, 0x00, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
_register_write_xm(CTRL_REG1_XM, _register_write_xm(CTRL_REG1_XM,
@ -624,17 +628,17 @@ void AP_InertialSensor_LSM9DS0::_accel_init()
CTRL_REG1_XM_BDU | CTRL_REG1_XM_BDU |
CTRL_REG1_XM_AZEN | CTRL_REG1_XM_AZEN |
CTRL_REG1_XM_AYEN | CTRL_REG1_XM_AYEN |
CTRL_REG1_XM_AXEN); CTRL_REG1_XM_AXEN, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
_register_write_xm(CTRL_REG2_XM, _register_write_xm(CTRL_REG2_XM,
CTRL_REG2_XM_ABW_194Hz | CTRL_REG2_XM_ABW_194Hz |
CTRL_REG2_XM_AFS_16G); CTRL_REG2_XM_AFS_16G, true);
_set_accel_scale(A_SCALE_16G); _set_accel_scale(A_SCALE_16G);
hal.scheduler->delay(1); hal.scheduler->delay(1);
/* Accel data ready on INT1 */ /* Accel data ready on INT1 */
_register_write_xm(CTRL_REG3_XM, CTRL_REG3_XM_P1_DRDYA); _register_write_xm(CTRL_REG3_XM, CTRL_REG3_XM_P1_DRDYA, true);
hal.scheduler->delay(1); hal.scheduler->delay(1);
} }
@ -686,6 +690,18 @@ bool AP_InertialSensor_LSM9DS0::_poll_data()
if (_accel_data_ready()) { if (_accel_data_ready()) {
_read_data_transaction_a(); _read_data_transaction_a();
} }
if (_reg_check_counter++ == 10) {
_reg_check_counter = 0;
// check next register value for correctness
if (!_dev_gyro->check_next_register()) {
_inc_gyro_error_count(_gyro_instance);
}
if (!_dev_accel->check_next_register()) {
_inc_accel_error_count(_accel_instance);
}
}
return true; return true;
} }

6
libraries/AP_InertialSensor/AP_InertialSensor_LSM9DS0.h
View File

@ -66,8 +66,8 @@ private:
uint8_t _register_read_xm(uint8_t reg); uint8_t _register_read_xm(uint8_t reg);
uint8_t _register_read_g(uint8_t reg); uint8_t _register_read_g(uint8_t reg);
void _register_write_xm(uint8_t reg, uint8_t val); void _register_write_xm(uint8_t reg, uint8_t val, bool checked=false);
void _register_write_g(uint8_t reg, uint8_t val); void _register_write_g(uint8_t reg, uint8_t val, bool checked=false);
void _read_data_transaction_a(); void _read_data_transaction_a();
void _read_data_transaction_g(); void _read_data_transaction_g();
@ -96,4 +96,6 @@ private:
uint8_t _accel_instance; uint8_t _accel_instance;
enum Rotation _rotation; enum Rotation _rotation;
uint8_t _reg_check_counter;
}; };