On 2013-12-22 10:06, Charles Steinkuehler wrote: > On 12/22/2013 2:53 AM, bdebru...@luminize.nl wrote: >> >> Maybe some clash regarding mapping of ADC pins? I'll take a closer >> look >> at that. (any nudge if I'm taking the wrong approach will be >> appreciated) > > This sure sounds like nothing is connected to the analog input the > software is reading. Make sure you are using the proper > configuration > for your board (BeBoPr or BeBoPr-Bridge) as the analog inputs moved > between versions. This could be all that's wrong.
Let's see, according to the bebopr manual, J6, J7 and J8 are mapped to AIN2, AIN4 and AIN6. according the bebopr bridge pin signals document https://github.com/modmaker/BeBoPr-Bridge/blob/master/BBB-P8-P9-signals.pdf the pins to be used for bebopr black should be (Therm 0-2) AIN1, AIN3 and AIN5. But I have the bebopr-bridge so the pins should be AIN4, AIN5 and AIN6. I checked the .hal file and I use # Python user-mode HAL module to read ADC value and generate a thermostat output for PWM # t = Thermistor table (only epcos_B57560G1104 or 1 supported for now) # a = analog input channel loadusr -Wn Therm /home/linuxcnc/linuxcnc/configs/ARM/BeagleBone/BeBoPr-Bridge/ReadTemp.py -n Therm --num_chan 2 -t 1 1 -a 4 5 I start linuxcnc with the BeBoPr-Bridge configuration. If I attach nothing I get approx 168-173 on extruder temp and -55 on bed temp. After that I attach the therminstors but nothing changes. Then shorting J6 (BeBoPr board, thermistor connection) I get 400 on the bed temp. but nothing in between. > You don't have to do anything but load the existing already compiled > kernel module. It's fairly straight-forward. But I think your > problem > is with the input pin mappings. is this https://github.com/modmaker/BeBoPr/wiki/Better-Analog-Inputs what you are referring to? ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
