PRU won't initialize for hcsr-04 ultrasonic sensor (Beaglebone black)
In order to use the hcsr-04 ultrasonic sensor using BBB's PRU, I have tried this git :
https://github.com/HudsonWerks/Range-Sensor-PRU
I get the error "the PRU failed to open", when I try to start "rangepru".
Doing some research, I feel like that is because my PRU is not initialized and that I should do : "echo BB-BONE-PRU-01 > /sys/devices/bone_capemgr.8/slots" to correct it.
But with the recent debian versions (4.x), the cape manager changed and I found the file "slots" at:
/sys/devices/platform/bone_capemgr/slots ; BUT, there is no way to open, modify it :
- using "nano" I get "slots.swp Permission denied"
- and by typing the correct echo command (modified from the one above) : I get : "write error: No such file or directory"
Best regards,
Elrise
sensor beagleboneblack proximitysensor
asked Jan 2 at 17:07
ElriseElrise
11
add a comment |
In order to use the hcsr-04 ultrasonic sensor using BBB's PRU, I have tried this git :
https://github.com/HudsonWerks/Range-Sensor-PRU
I get the error "the PRU failed to open", when I try to start "rangepru".
Doing some research, I feel like that is because my PRU is not initialized and that I should do : "echo BB-BONE-PRU-01 > /sys/devices/bone_capemgr.8/slots" to correct it.
But with the recent debian versions (4.x), the cape manager changed and I found the file "slots" at:
/sys/devices/platform/bone_capemgr/slots ; BUT, there is no way to open, modify it :
- using "nano" I get "slots.swp Permission denied"
- and by typing the correct echo command (modified from the one above) : I get : "write error: No such file or directory"
Best regards,
Elrise
sensor beagleboneblack proximitysensor
asked Jan 2 at 17:07
ElriseElrise
11
add a comment |
In order to use the hcsr-04 ultrasonic sensor using BBB's PRU, I have tried this git :
https://github.com/HudsonWerks/Range-Sensor-PRU
I get the error "the PRU failed to open", when I try to start "rangepru".
Doing some research, I feel like that is because my PRU is not initialized and that I should do : "echo BB-BONE-PRU-01 > /sys/devices/bone_capemgr.8/slots" to correct it.
But with the recent debian versions (4.x), the cape manager changed and I found the file "slots" at:
/sys/devices/platform/bone_capemgr/slots ; BUT, there is no way to open, modify it :
- using "nano" I get "slots.swp Permission denied"
- and by typing the correct echo command (modified from the one above) : I get : "write error: No such file or directory"
Best regards,
Elrise
sensor beagleboneblack proximitysensor
asked Jan 2 at 17:07
ElriseElrise
11
In order to use the hcsr-04 ultrasonic sensor using BBB's PRU, I have tried this git :
https://github.com/HudsonWerks/Range-Sensor-PRU
I get the error "the PRU failed to open", when I try to start "rangepru".
Doing some research, I feel like that is because my PRU is not initialized and that I should do : "echo BB-BONE-PRU-01 > /sys/devices/bone_capemgr.8/slots" to correct it.
But with the recent debian versions (4.x), the cape manager changed and I found the file "slots" at:
/sys/devices/platform/bone_capemgr/slots ; BUT, there is no way to open, modify it :
- using "nano" I get "slots.swp Permission denied"
- and by typing the correct echo command (modified from the one above) : I get : "write error: No such file or directory"
Best regards,
Elrise
sensor beagleboneblack proximitysensor
sensor beagleboneblack proximitysensor
asked Jan 2 at 17:07
ElriseElrise
11
asked Jan 2 at 17:07
ElriseElrise
11
asked Jan 2 at 17:07
ElriseElrise
11
asked Jan 2 at 17:07
ElriseElrise
11
asked Jan 2 at 17:07
ElriseElrise
11
11
add a comment |
add a comment |
1 Answer
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You are probably missing a suitable device tree driver.
Try to follow the instructions on:
https://github.com/luigif/hcsr04
related to the compilation and installation of the driver.
If you have a proper development environment, executing make install should do everything for you.
answered Feb 6 at 15:10
luigifluigif
48445
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You are probably missing a suitable device tree driver.
Try to follow the instructions on:
https://github.com/luigif/hcsr04
related to the compilation and installation of the driver.
If you have a proper development environment, executing make install should do everything for you.
answered Feb 6 at 15:10
luigifluigif
48445
add a comment |
You are probably missing a suitable device tree driver.
Try to follow the instructions on:
https://github.com/luigif/hcsr04
related to the compilation and installation of the driver.
If you have a proper development environment, executing make install should do everything for you.
answered Feb 6 at 15:10
luigifluigif
48445
add a comment |
You are probably missing a suitable device tree driver.
Try to follow the instructions on:
https://github.com/luigif/hcsr04
related to the compilation and installation of the driver.
If you have a proper development environment, executing make install should do everything for you.
answered Feb 6 at 15:10
luigifluigif
48445
You are probably missing a suitable device tree driver.
Try to follow the instructions on:
https://github.com/luigif/hcsr04
related to the compilation and installation of the driver.
If you have a proper development environment, executing make install should do everything for you.
answered Feb 6 at 15:10
luigifluigif
48445
answered Feb 6 at 15:10
luigifluigif
48445
answered Feb 6 at 15:10
luigifluigif
48445
answered Feb 6 at 15:10
luigifluigif
48445
48445
add a comment |
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