XDIMAX Products Forum

It's a mobile robotics project. We have this large (80kg) tracked robot, which needs sensors. We'll use the SUB-20 i2c-bus at least for ultrasonic sensors and local I/O-expanders. AD-converters are used for monitoring voltages and currents of the power system and GPIO for various simple control or s...

Now it seems to work!
Thank you for the instructions.

Sometimes it works and then I get this:

./sub_app --gpio=c,0,0

BULK_OUT 11 bytes:
0a 60 08 00 00 00 00 00 00 00 00
Transfer completed, transferred=11
BULK_IN 7 bytes:
06 60 04 cf 00 00 00
GPIO Config: val=00000000,mask=00000000
GPIO Config: 000000CF

./sub_app --gpio=c,0,0

BULK_OUT 11 bytes:
0a 60 08 00 00 00 00 00 00 00 00
BULK_IN 7 bytes:
06 60 04 cf 00 00 00
Transfer incomplete
Failed(rc=7): Bulk write failed

The functions for configuring and reading AD-converter work without problems.
Also I2C functions and writing on the LCD work correctly.
I haven't tested PWM or SPI.

I'm running Ubuntu 9.04 with libusb-1.0-0 version 2:1.0.0-1.

I'm testing the SUB-20 module in Linux with the provided sub_app application. When using the GPIO functions (config and read) they fail most of the time with error code 7, "Bulk write failed". Approx. every 10th call is successful. ADC and I2C calls work perfectly. Version information: XDimax LTD, V...