Thanks Robert, BBB seems blocked when I tried to disable pwm one more time:
debian@beaglebone:/sys/class/pwm/pwmchip1/pwm-1:1$ echo 0 > enable ^C ^C Hot reboot ? Sincerely, Pavel On Wednesday, September 16, 2020 at 3:45:07 PM UTC+2, RobertCNelson wrote: > > On Wed, Sep 16, 2020 at 8:33 AM Pavel Yermolenko <[email protected] > <javascript:>> wrote: > > > > Hello, > > > > I modified bone script pwm.js from Derek Molloy book, adapting pin for > BBB (in bold): > > > > var b = require('bonescript'); > > var pin = "P9_21"; // Use P1.08 or P1.36 by default on PocketBeagle > > var dutyCycle = 0.75; > > var frequency = 10000; > > > > b.pinMode(pin, b.OUTPUT); > > b.getPinMode(pin, printPinMux); > > b.analogWrite(pin, dutyCycle, frequency, display); > > > > function printPinMux(val){ > > console.log('mux = '+val.mux); > > console.log('name = '+val.name); > > } > > > > function display(val){ > > console.log(val); > > } > > > > Doesn't work: > > > > debian@beaglebone:~/exploringbb/chp06/bone$ sudo nodejs pwm.js > > error: error updating PWM freq and value: > /sys/devices/platform/ocp/48300000.epwmss/48300200.pwm/pwm/pwmchip1/pwm-1:1, > Error: EINVAL: invalid argument, write > > { err: > > 'error updating PWM freq and value: > /sys/devices/platform/ocp/48300000.epwmss/48300200.pwm/pwm/pwmchip1/pwm-1:1, > Error: EINVAL: invalid argument, write' } > > warning: single argument callbacks will be deprecated.please use > node-style error-first callbacks: callback(err,response) > > mux = undefined > > name = UART2_TXD > > > > Any suggestions ? > > bonescript is being scrapped, use adafruit-beaglebone-io-python... > > > https://github.com/adafruit/adafruit-beaglebone-io-python > > Regards, > > > -- > Robert Nelson > https://rcn-ee.com/ > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/5ac23de7-8f70-4201-9c77-52dbf250bfcdo%40googlegroups.com.
