cdc_acm and maple mini in linux

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cdc_acm and maple mini in linux

(6 posts) (4 voices)

Started 10 months ago by zelea2
Latest reply from rogerclark

zelea2
Member

I've just got a maple mini board and I'm using latest libmaple from git to program it
In bootloader mode I can see the device as 'Bus 004 Device 042: ID 1eaf:0003'
and blinky.cpp works fine and blinks with the proper delay (meaning crystal settings are fine)

However when I load test-print.cpp the serial CDC USB device doesn't enumerate. I have the
following in my dmesg:

[ 0.000000] usb 4-1: new full-speed USB device number 54 using uhci_hcd
[ 0.000000] usb 4-1: device descriptor read/64, error 18
[ 0.000000] usb 4-1: device descriptor read/64, error 18
[ 0.000000] usb 4-1: new full-speed USB device number 55 using uhci_hcd
[ 0.000000] usb 4-1: device descriptor read/64, error 18
[ 0.000000] usb 4-1: device descriptor read/64, error 18
[ 0.000000] usb 4-1: new full-speed USB device number 56 using uhci_hcd
[ 0.000000] usb 4-1: device not accepting address 56, error -32
[ 0.000000] usb 4-1: new full-speed USB device number 57 using uhci_hcd
[ 0.000000] usb 4-1: device not accepting address 57, error -32
[ 0.000000] hub 4-0:1.0: unable to enumerate USB device on port 1

Is anyone else experiencing this behaviour? I'm using a fairly new cross-compiler
(gcc-arm-none-eabi-4-9_2014-2 from linaro).

Posted 10 months ago #
gbulmer
Moderator

@zelea2 - just to be clear, are you compiling the blinky.cpp with exactly the same tool chain, as you used for test-print.cpp?

Have you tried any other program than test-print.cpp or blinky.cpp?

(What OS are you using?)

Posted 10 months ago #
zelea2
Member

Yes all is the same, I've also tested serial-echo which works fine connected to a FTDI adapter.
I'm on linux (Debian). I've also plugged the maple mini board in a windows machine and USB is also not recognised there (bootloader USB is). Can someone post a test-print.bin so I can rule out the tool-chain as a problem?

Posted 10 months ago #
tormod
Member

Try compiling with gcc 4.8 instead. Apparently there is a bug in the maple USB code that gets exposed in gcc 4.9. Compiling without optimization should also help.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64953

https://github.com/tormodvolden/maple-bootloader/pull/1

Posted 10 months ago #
zelea2
Member

Spot on tormod!

Compiling with -O3 instead of -Os resurrects the device 'Bus 006 Device 055: ID 1eaf:0004' but no CDC
Compiling with -O0 brings the /dev/ttyACM0 up too and everything works.

So warning: There is an incompatibility between libmaple and gcc-arm-none-eabi-4-9. Better use 4.8 until this is fixed.

Posted 10 months ago #
rogerclark
Member

Zelea2

Maple mini now works with the latest Arduino IDE 1.6.1, because the ARM compilor was added back in 1.5.x for the Arduino Due

However you need to download and install the hardware files from my github repo

https://github.com/rogerclarkmelbourne

Note. Also that under Windows 7 and newer, the old Maple drivers won't work because they are not digitally signed

However there is a work-around using a custom installer - which is also in my repo

We have an active community for all of this on the main arduino forum, http://forum.arduino.cc/index.php?topic=265904.new#new

So I think you'd be better off posting there.

Posted 10 months ago #

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