Hi, I'm trying to use pwm on BBB Linux beaglebone 3.8.13-bone50 #1 SMP Tue May 13 13:24:52 UTC 2014 armv7l GNU/Linux I have modified uEnv.tx ... cape_enable=capemgr.enable_partno=BB-UART1,SPI-4SS,bone_eqep2b,bone_pwm_P8_13,am33xx_pwm ... and /etc/default/capemgr ... # Options to pass to capemgr CAPE=SPI-4SS,bone_eqep2b,bone_pwm_P8_13,am33xx_pwm ...
after booting I have correctly in 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,BB-UART1 10: ff:P-O-L Override Board Name,00A0,Override Manuf,bone_pwm_P8_13 11: ff:P-O-L Override Board Name,00A0,Override Manuf,am33xx_pwm 12: ff:P-O-L Override Board Name,00A0,Override Manuf,SPI-4SS 13: ff:P-O-L Override Board Name,00A0,Override Manuf,bone_eqep2b and pwm works, but, - after power on the logic level on P8_13 is low (as I want it to be) - after that (loading dtc overlay) the logic level on P8_13 become high (I dont want it) My attempt to modify /lib/firmware/bone_pwm_P8_13-00A0.dts and then recompiling doesn't effect any of: /sys/devices/ocp.3/pwm_test_P8_13.11/ duty, period, polarity, run, .... As I don't want the motor connected to PWM to run, before the applications takes over the control, can anyone help me to achieve it? Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
