Re: [Paparazzi-devel] TWOG and gps_ubx_ucenter module

[Christophe De Wagter]

Dear Jeremy,

The gps_ubx_ucenter module does exactly the same on all LPC21 variants of autopilots, actually even on the STM32's. The only possible differences can be:

1) Rx-Tx pins swapped

2) Uart0 <-> Uart1 swapped

3) Non correct voltage supply to GPS (5v gps or 3.3v ?)

4) ROTORCRAFT <-> FIXEDWING firmware (configures rate of NAV_SOL to 1Hz on fixedwing that use LLH for position and 4Hz for rotorcraft with ECEF->LTP position)

5) most UBlox have 2 or more ttl ports, a usb port and even an i2c port. Depending on the GPS board it can be ublox_port1 or ublox_port2 that is routed to the pins (not to confuse with paparazzi_lpc_port0 and port1) The ubx_module can configure the GPS to give its messages on another port with the GPS_PORT_ID define. If not provided, the module assumes GPS_PORT_UART1. But you can define more options: https://github.com/paparazzi/paparazzi/blob/v4.0/sw/airborne/modules/gps/gps_ubx_ucenter.c  LINE 267 ->

6) Other airframe file related problem: e.g. trying to run umarin itg3200 imu code in a twog that has not have it... (imu does stops the boot if not configured correctly)

-Christophe 

On Sun, Jul 29, 2012 at 7:41 AM, Jeremy Reinertsen <address@hidden> wrote:

Hi folks,

 

I am testing a UBLOX MAX-6Q GPS (www.csgshop.com/category.php?id_category=16) and trying to configure it at startup using the gps_ubx_ucenter module. This is working fine on a Umarim Lite V2 autopilot but will not work on a TWOG using exactly the same settings. I have double checked all connections etc and it appears to be a problem with the Paparazzi software.

 

Any ideas?

 

Cheers

Jeremy

 

 

 

_______________________________________________
Paparazzi-devel mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/paparazzi-devel