Hardware Reference
In-Depth Information
[ 625.335144] bone_capemgr.9: slot #11: dtbo 'BB-SPIDEV0-00A0.dtbo'
loaded; \
converting to live tree
[ 625.341842] bone_capemgr.9: slot #11: BB-SPIDEV0 conflict P9.21 \
(#10:bspwm_P9_21_b)
[ 625.351296] bone_capemgr.9: slot #11: Failed verification
Shows there is a conflict for pin
P9_21
: it's already configured for pulse width
modulation (PWM).
Here's how to see what's already configured:
bone#
cat $SLOTS
0: 54:PF---
1: 55:PF---
2: 56:PF---
3: 57:PF---
4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
7: ff:P-O-L Override Board Name,00A0,Override Manuf,bspm_P9_42_27
8: ff:P-O-L Override Board Name,00A0,Override Manuf,bspm_P9_41_27
9: ff:P-O-L Override Board Name,00A0,Override Manuf,am33xx_pwm
10: ff:P-O-L Override Board Name,00A0,Override Manuf,bspwm_P9_21_b
You can see the eMMC, HDMI, and three PWMs are already using some of the
pins. Slot 10 shows
P9_21
is in use by a PWM.
You can unconfigure it by using the following commands:
bone#
echo -10 > $SLOTS
bone#
cat $SLOTS
0: 54:PF---
1: 55:PF---
2: 56:PF---
3: 57:PF---
4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
7: ff:P-O-L Override Board Name,00A0,Override Manuf,bspm_P9_42_27
