如何调整我的 Cape Manager 以不在 BeagleBone Black 上出现运行时错误？

Question

I noticed that I keep getting a " Runtime Error: Problem with Cape Manager " when I run a specific piece of software on my BeagleBone Black . I have a RGB LED with four wires coming out of it and they are connected to my BBB via resistors and jumper wires. How does my cape manager work and where can I find this information? Where can I find info. on how to change the Cape Manager and why would need to change the Cape Manager ? The software is listed here:

import Adafruit_BBIO.PWM as PWM
import time

red = "P8_13"
green = "P8_19"
blue = "P9_14"

PWM.start(red, 0)
PWM.start(blue, 0)
PWM.start(green, 0)

def fade(colorA, colorB, ignore_color):
    PWM.set_duty_cycle(ignore_color, 100)
    for i in range(0, 100):
        PWM.set_duty_cycle(colorA, i)
        PWM.set_duty_cycle(colorB, 100-i)
        time.sleep(0.05)

while True:
    fade(red, green, blue)
    fade(green, blue, red)
    fade(blue, red, green)

Now...

I am running a Python program from Adafruit's website listed under their BeagleBone Black section of their site.

I can change the /boot directory file uEnv.txt and get my software to work but when I reboot, the system does not arrive to be. It ceases. I cannot boot.

Is there a way to run this software after changing my /boot/uEnv.txt file and what would I need to change?

Seth

PS I am running a BeagleBoard.org Debian Image 2017-04-16. uname -a on the cmd line states: Linux beaglebone 4.4.61-ti-r98.

Answer 1

Cape Manager is a thing of the past. u-boot overlays is used now and the sysfs and chardev directories are used instead.