Channel Pulse > 99999 Causes Runtime Error

[natjgreen]

When trying to create a channel pulse greater than 99999 in length a runtime error is returned. The error message also seems to contain errors (the channel number and the max_width). Below is an example that I generated in the python prompt:

import RPIO.PWM as pwm
pwm.setup()
Using hardware: PWM
PW increments: 10us
pwm.init_channel(0, 1000000)
Initializing channel 0...
pwm.add_channel_pulse(0, 18, 0, 99999)
add_channel_pulse: channel=0, gpio=18, start=0, width=99999
init_gpio 18
pwm.add_channel_pulse(0, 18, 0, 100000)
add_channel_pulse: channel=0, gpio=18, start=0, width=100000
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python2.7/dist-packages/RPIO-0.10.0-py2.7-linux-armv6l.egg/RPIO/PWM/init.py", line 115, in add_channel_pulse
return _PWM.add_channel_pulse(dma_channel, gpio, start, width)
RuntimeError: Error: cannot add pulse to channel 99999: width_start+width exceed max_width of 0

[metachris]

You could try to increase the pulse-width increment granularity to get
longer pulses.

On Fri, Jan 3, 2014 at 6:54 AM, natjgreen notifications@github.com wrote:

When trying to create a channel pulse greater than 99999 in length a
runtime error is returned. The error message also seems to contain errors
(the channel number and the max_width). Below is an example that I
generated in the python prompt:

import RPIO.PWM as pwm
pwm.setup()
Using hardware: PWM
PW increments: 10us
pwm.init_channel(0, 1000000)
Initializing channel 0...
pwm.add_channel_pulse(0, 18, 0, 99999)
add_channel_pulse: channel=0, gpio=18, start=0, width=99999
init_gpio 18
pwm.add_channel_pulse(0, 18, 0, 100000)
add_channel_pulse: channel=0, gpio=18, start=0, width=100000
Traceback (most recent call last):
File "", line 1, in
File
"/usr/local/lib/python2.7/dist-packages/RPIO-0.10.0-py2.7-linux-armv6l.egg/RPIO/PWM/
init.py", line 115, in add_channel_pulse
return _PWM.add_channel_pulse(dma_channel, gpio, start, width)
RuntimeError: Error: cannot add pulse to channel 99999: width_start+width
exceed max_width of 0

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[natjgreen]

Thanks that works.