Hello，

When I running by launch file, but the program hang up, the Error is " Failed to poll MonVER & set relevant settings"

kevin@kevin-virtual-machine:~/catkin_ws/src/ublox-master/ublox_gps/launch$ roslaunch ublox_device.launch ... logging to /home/kevin/.ros/log/ba984710-6f31-11ea-889b-d31927527346/roslaunch-kevin-virtual-machine-87976.log Checking log directory for disk usage. This may take awhile. Press Ctrl-C to interrupt WARNING: disk usage in log directory [/home/kevin/.ros/log] is over 1GB. It's recommended that you use the 'rosclean' command.

started roslaunch server http://127.0.0.1:44973/

SUMMARY

CLEAR PARAMETERS

/ublox_gps/

PARAMETERS

/rosdistro: kinetic
/rosversion: 1.12.14
/ublox_gps/debug: 1
/ublox_gps/device: /dev/ttyUSB0
/ublox_gps/dgnss_mode: 3
/ublox_gps/dr_limit: 0
/ublox_gps/dynamic_model: airborne2
/ublox_gps/enable_ppp: False
/ublox_gps/fix_mode: auto
/ublox_gps/frame_id: gps
/ublox_gps/gnss/beidou: False
/ublox_gps/gnss/glonass: True
/ublox_gps/gnss/qzss: False
/ublox_gps/inf/all: True
/ublox_gps/nav_rate: 4
/ublox_gps/publish/aid/hui: False
/ublox_gps/publish/all: True
/ublox_gps/publish/nav/posecef: False
/ublox_gps/rate: 4
/ublox_gps/save/device: 4
/ublox_gps/save/mask: 3103
/ublox_gps/uart1/baudrate: 38400
/ublox_gps/uart1/in: 32
/ublox_gps/uart1/out: 0

NODES / ublox_gps (ublox_gps/ublox_gps)

auto-starting new master process[master]: started with pid [87986] ROS_MASTER_URI=http://127.0.0.1:11311

setting /run_id to ba984710-6f31-11ea-889b-d31927527346 process[rosout-1]: started with pid [87999] started core service [/rosout] process[ublox_gps-2]: started with pid [88016] [ INFO] [1585207000.055439752]: U-Blox: Opened serial port /dev/ttyUSB0 [DEBUG] [1585207000.558687442]: U-Blox: Set ASIO baudrate to 9600 [DEBUG] [1585207001.065283482]: U-Blox: Set ASIO baudrate to 19200 [DEBUG] [1585207001.572044700]: U-Blox: Set ASIO baudrate to 38400 [DEBUG] [1585207001.572119662]: Configuring UART1 baud rate: 38400, In/Out Protocol: 32 / 0 terminate called after throwing an instance of 'std::runtime_error' what(): Failed to poll MonVER & set relevant settings

Mar 26 '20 07:03 kevinliu257

I find the reason is "callbacks_.read(message, timeout);" always return false. because "handler->wait(timeout)" timeout .

but I don't know how to fix it. my OS is Ubuntu 16.04.

code as below: template <typename T> bool Gps::read(T& message, const boost::posix_time::time_duration& timeout) { if (!worker_) return false; return callbacks_.read(message, timeout); }

template <typename T> bool read(T& message, const boost::posix_time::time_duration& timeout) { bool result = false; // Create a callback handler for this message callback_mutex_.lock(); CallbackHandler_<T>* handler = new CallbackHandler_<T>(); Callbacks::iterator callback = callbacks_.insert( (std::make_pair(std::make_pair(T::CLASS_ID, T::MESSAGE_ID), boost::shared_ptr<CallbackHandler>(handler)))); callback_mutex_.unlock();

// Wait for the message
if (handler->wait(timeout)) {
  message = handler->get();
  result = true;
}

// Remove the callback handler
callback_mutex_.lock();
callbacks_.erase(callback);
callback_mutex_.unlock();
return result;

Mar 26 '20 09:03 kevinliu257

I'm having the exact same problem. I do have the ZED-F9P connected to u-center via USB and am attempting to read out the GPS data via UART1.

Any help on this issue would be greatly appreciated.

May 13 '21 00:05 clint-qurrent

Also experiencing this. In general this node is quite difficult to use with F9P, even with config_on_startup: false and manual configuration in u-center.

Frequent issue on startup:

[ INFO] [1666109469.028044469]: U-Blox: Opened serial port /dev/ttyACM0
terminate called after throwing an instance of 'std::runtime_error'
  what():  Failed to poll MonVER & set relevant settings

Also, after a successful startup and shutdown of the node, it rarely connects successfully a second time.

Oct 18 '22 16:10 arpaterson

right, but what can be done with this issue? because on ROS2 Humble the problem also occurs, when using u-center configuration saved in non-volatile memory and parameter config_on_startup: false :/

Mar 27 '24 10:03 kosmonauta144