[Paparazzi-devel] Viewing BMP085 messages and fusion with GPS altitude

[Chris Wozny]

All,

I'm having trouble showing messages for the BMP085 on the latest pull of dev. When I try and compile, I get the following error:

> mcu_periph/i2c.c: In function 'i2c0_init':
> mcu_periph/i2c.c:9: warning: implicit declaration of function 'i2c0_hw_init'
> mcu_periph/i2c.c:9: warning: nested extern declaration of 'i2c0_hw_init'
> ...
> CC /home/woz/paparazzi/var/MV2_LisaM_2/ap/modules/sensors/baro_bmp.o
> LD /home/woz/paparazzi/var/MV2_LisaM_2/ap/ap.elf
> /home/woz/paparazzi/var/MV2_LisaM_2/ap/mcu_periph/i2c.o: In function `i2c0_init':
> /home/woz/paparazzi/sw/airborne/mcu_periph/i2c.c:9: undefined reference to `i2c0_hw_init'
> collect2: ld returned 1 exit status
> make[1]: *** [/home/woz/paparazzi/var/MV2_LisaM_2/ap/ap.elf] Error 1
> make[1]: Leaving directory `/home/woz/paparazzi/sw/airborne'
> make: *** [ap.compile] Error 2
> make: Leaving directory `/home/woz/paparazzi'

I've got the following configuration:

> <firmware name="fixedwing">
>    ...
>    <target name="ap"	board="lisa_m_2.0">
>       <define name="USE_I2C0"/>
>       <define name="BMP_I2C_DEV" value="i2c0"/>
>       <define name="SENSOR_SYNC_SEND"/>
>    </target>
>    ...
>    <subsystem name="i2c"/>
> </firmware>
> <modules>
>    <load name="baro_bmp.xml"/>
> </modules>

I've seen that in the past there have been issues with i2c0, is this a continuation of that? Also, when I try and add the BARO_BMP85 messages to my telemetry configuration, I get the following error:

firmwares/fixedwing/main_ap.c: In function 'reporting_task':

firmwares/fixedwing/main_ap.c:404: warning: implicit declaration of function 'PERIODIC_SEND_BARO_BMP85'

firmwares/fixedwing/main_ap.c:404: warning: nested extern declaration of 'PERIODIC_SEND_BARO_BMP85'

firmwares/fixedwing/main_ap.c:404: error: 'PprzTransport' undeclared (first use in this function)

firmwares/fixedwing/main_ap.c:404: error: (Each undeclared identifier is reported only once

firmwares/fixedwing/main_ap.c:404: error: for each function it appears in.)

firmwares/fixedwing/main_ap.c:404: error: 'UART2' undeclared (first use in this function)

make[1]: *** [/home/woz/paparazzi/var/MV2_LisaM_2/ap/firmwares/fixedwing/main_ap.o] Error 1

make[1]: Leaving directory `/home/woz/paparazzi/sw/airborne'

make: *** [ap.compile] Error 2

make: Leaving directory `/home/woz/paparazzi'

I think there needs to be a little more documentation as to the use of BMP085 and/or barometers for fusion with GPS altitude (why are there two separate defines?) as the only airframe which uses it on the repository is Martin's funjetmm.xml. I'd love to update the wiki with the info I will receive for replies from this thread.

Best,

Chris