Damon

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  • #6822
    Damon
    Participant

    Problem solved.
    With a little extra help from:  Spellfoundry and the fact that I didn't follow instructions on wiring correctly and had Tx/Rx reversed.  (Old eyes)

    It is now running.  Yippie!!!

    #6820
    Damon
    Participant

    Hey Mark.

    I am having the same issues.   I cannot get any output on a Raspberry Pi 3 with BerryGPS.

    Here is my output:

    pi@raspi2:~ $ dmesg | grep tty
    [ 0.000000] Kernel command line: 8250.nr_uarts=1 bcm2708_fb.fbwidth=1824 bcm2708_fb.fbheight=984 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000 dwc_otg.lpm_enable=0 console=tty1 root=PARTUUID=e261b53b-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
    [ 0.000345] console [tty1] enabled
    [ 0.820557] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 87, base_baud = 0) is a PL011 rev2
    [ 0.822204] 3f215040.serial: ttyS0 at MMIO 0x0 (irq = 220, base_baud = 31250000) is a 16550
    pi@raspi2:~ $ cat /dev/ttyS0
    ^C
    pi@raspi2:~ $ cat /dev/ttyAMA0
    pi@raspi2:~ $ cat /dev/ttyS0
    ^C
    pi@raspi2:~ $ cat /dev/serial0
    ^C
    pi@raspi2:~ $ cat /boot/cmdline.txt
    dwc_otg.lpm_enable=0 console=tty1 root=PARTUUID=e261b53b-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
    pi@raspi2:~ $

    I really don't have an option to disable the on-board Bluetooth to free up ttyAMA0 as suggested in the raspberry forum on this issue.

    I am really hoping you can help me out on this.

    Cheers mate!

    #6751
    Damon
    Participant

    Update:
    So I threw the initialize code block into a Try-Catch.  If the IMU fails to initialize I set a flag so we don't use the IMU.   All is good.

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