Hi. I have one problem with this ADC conversion. I create connections between HAL file and this ADCfile (hal_temp_bb). Everything works, but if the ADC send me value more than 1600 (0-6000), my JOG wheel stop working. I use some GPIO PINs for axis_enable(X,Y,Z) and axis_jog scale (UP,DOWM). This button not responding, while ADC_value is more than 1600. If ADC_value is less than 1600. this button works. Can you help me with this problem ?? Thanks.
P8.16 in # Manual-5 JOG_EN_X P9.24 in # Manual-6 JOG_EN_Y P9.25 in # Manual-8 JOG_EN_A P9.26 in # Manual-7 JOG_EN_Z P8.17 in # Manual-4 JOGMUX_2 P8.18 in # Manual-3 JOGMUX_1 Can you help me make this file more simple? I don´t need read resistance table(delete from this file). I need Only adc_value. 2016-04-20 18:05 GMT+02:00 Matus Kamensky <[email protected]>: > I create connection between machinekit (i create variable PWM.meas => this > variable will use to PWM) and script hal_temp_bbb. Now i need edit a > script. Can you help me with this problem? > This is the script: > > > https://github.com/machinekit/machinekit/blob/master/src/hal/user_comps/hal_temp_bbb.py > > I tried edit this sections: > def adc2r_cramps(pin): > * V_adc = pin.rawValue* > # V_T = 0.0 # Voltage across the thermistor > # R_PU = 2000.0 #Pull-up resistence > # I_PU = 0.0 # Current flowing through the pull-up resistor > # R_T = 0.0 # Resistance of the thermistor > # V_T = V_adc > # No dividing by zero or negative voltages despite what the ADC says! > # Clip to a small positive value > # I_PU = max((1.8 - V_T ) / R_PU, 0.000001) > # R_T = V_T / I_PU > * return V_adc* > def adc2Temp(pin): > if(args.cape_board == 'BeBoPr'): > R = adc2r_bebopr(pin) > elif (args.cape_board == 'CRAMPS'): > R = adc2r_cramps(pin) > else: > print("Invalid -b cape name: %s" % args.cape_board) > print("Valid names are: BeBoPr, CRAMPS") > sys.exit(1) > return round(R) > But without corect solution. > > 2016-04-20 16:46 GMT+02:00 Charles Steinkuehler <[email protected]> > : > >> You need Machinekit HAL file knowledge, not Linux (or AVR). >> >> You load the ADC code with a line like this: >> >> >> https://github.com/machinekit/machinekit/blob/master/configs/ARM/BeagleBone/CRAMPS/CRAMPS.hal#L35 >> >> ...except you will probably want to use "none" for the thermistor >> (which is epcos_B57560G1104 in the example above). Adjust the >> channel(s) (04: and 05: in the example above) to select the ADC input >> pin you wish to use. >> >> Then you need to connect the ADC reading to your PWM driver with a HAL >> signal like so: >> >> >> https://github.com/machinekit/machinekit/blob/master/configs/ARM/BeagleBone/CRAMPS/CRAMPS.hal#L365-L366 >> >> ...but you should use the .raw signal (ie: Therm.ch-04.raw) instead of >> the value to get a value between 0-4095. >> >> Since this is specifically a Machinekit question, you should probably >> be asking on the Machinekit Google group: >> >> https://groups.google.com/forum/#!forum/machinekit >> >> On 4/20/2016 9:18 AM, Matus Kamensky wrote: >> > Thanks for your answer. But i don´t know, how this structure or command >> write. I >> > work with AVR microprocessor, no with linux. Can you send me some >> examples of >> > command, which I solve my problem? . I need only number with range >> 0-4000 from >> > 0-1,8V (AIN0). I use machinekit,debian 3.8. and beagle bone black (own >> cape).Thanks >> > >> > 2016-04-20 16:06 GMT+02:00 Charles Steinkuehler < >> [email protected] >> > <mailto:[email protected]>>: >> > >> > On 4/20/2016 8:15 AM, Matus Kamensky wrote: >> > > Hi. I use machinekit for controlling my CNC mill and i need read >> ADC pin (AIN0) >> > > to set speed of my motor (0-4000rpm). I need convert voltage >> (0-1,8V) to >> > > pwmgen.parameter(0-4000). Can You help me? Thanks. >> > >> > Start with the BBB temperature code: >> > >> > >> https://github.com/machinekit/machinekit/blob/master/src/hal/user_comps/hal_temp_bbb.py >> > >> > ...use "none" for the thermistor and use the .raw HAL pin in your >> HAL >> > file. If you want, you can delete the code that converts ADC values >> > to a resistance and then a temperature value, or add some >> appropriate >> > scaling so you can directly connect the .raw output pin to your >> pwmgen >> > input. >> >> -- >> Charles Steinkuehler >> [email protected] >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/zTS1a2GxEYs/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/57179661.1040607%40steinkuehler.net >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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/CAC8WByYEFWnDyeqCuhKgC15moA4ux5gCjg1ZpnBWDP8Mw2gwqA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
