Hello,
I am developing a ROS project and I am using Ubuntu 16.04.1 on Beaglebone
Black with 4.4.23-ti-r51 kernel.
I have a setup which uses the following pins:
Analog: P9_40, P9_39, P9_38, P9_37, P9_36
PWM: P9_16, P8_13
UART2, UART4 ,
GPIO: P9_41
In /boot/uEnv.txt I only have the line cape_universal=enable
and in /etc/default/capemgr
CAPE=cape-universaln
as a result cat /sys/devices/platform/bone_capemgr/slots command reports:
0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universaln
I am using Adafruit_BBIO library to control PWM and ADC and UART.
With the above settings ADC and PWM works fine, but not UART...
Although /dev/ttyO2 and /dev/ttyO4 are present it doesn't work.
If I, on the other hand, if I add on /boot/uEnc.txt the following
cape_enable=bone_capemgr.enable_partno=BB-UART2,BB-UART4,BB-PWM1,BB-PWM2
Then UART ports are fine, but PWM has the following error.
Traceback (most recent call last):
File "/home/ubuntu/catkin_ws/src/robot_core/scripts/wheel_controller.py",
line 17, in <module>
PWM.start(LEFT_MOTOR_PIN, PWM_DUTY_CYCLE, PWM_NEUTRAL_FREQUENCY, 1)
RuntimeError: Problem with the cape manager
I am having trouble understanding dts files in order to create my own
overlay.
Also when i tried to run config-pin i get command not found
and with sudo sh -c "echo 'BB-UART2' >
/sys/devices/platform/bone_capemgr/slots" i get sh: echo: I/O-error
i am a bit confused!
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