[beagleboard] Using DMtimer pins to measure pulse width

I'm trying to use the timer pins (gpio2[2...5]) to measure pulse with on a BBB with the 25 MHz clock. The pin mud mode is correctly set to 2 and pull up/down are disabled and capture mode is set on the timers. When I connect a push button attached to 3.3v to one of the four timer pins I

[beagleboard] Using DMTimer pins to measure pulse width.

I'm trying to use the DMTimer pins (gpio2[2...5]) to measure pulse width using the 25MHz clock. I've successfully tested the software using a button connected to the 3.3v rail. The pinmux is set to mode 2 forcthose pins and pull up/down are disabled. The timers are set up in capture mode with

Re: [beagleboard] PWM Subsystem Time Base input clock frequency?

On Friday, January 31, 2014 5:57:32 PM UTC-5, Charles Steinkuehler wrote: On 1/31/2014 12:38 PM, robjsstew...@gmail.com wrote: According to the TRM, the Time Base module on each of the PWM subsystems is clocked directly from the cpu clock. That is, its being clocked at a period of 1

[beagleboard] PWM Subsystem Time Base input clock frequency?

According to the TRM, the Time Base module on each of the PWM subsystems is clocked directly from the cpu clock. That is, its being clocked at a period of 1 nsec. It can be prescaled down to 1/128,for a period of 128 nsecs. The period and the counter compare registers are only 16 bits wide so

[beagleboard] Re: PWM Subsystem Time Base input clock frequency?

On Friday, January 31, 2014 1:38:32 PM UTC-5, robjss...@gmail.com wrote: According to the TRM, the Time Base module on each of the PWM subsystems is clocked directly from the cpu clock. That is, its being clocked at a period of 1 nsec. It can be prescaled down to 1/128,for a period of 128

[beagleboard] Re: PWM Subsystem Time Base input clock frequency?

On Friday, January 31, 2014 1:48:09 PM UTC-5, Peter Baltus wrote: I guess I would argue that with 16 bits the counter can count up to 65535 and wrap around after 65536 counts of 128ns max. That gives a max period of the PWM of 8.39ms and a min frequency of 119Hz - I think. But it has been a

Re: [beagleboard] Cortex-A8 version supported on the AM3358?

Thanks. Bob -- 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.

[beagleboard] Cortex-A8 version supported on the AM3358?

I'm running the Genode OS on a BBB and am having issues with the MMU. What version of the Cortex-A8 processor is the BBB based on? The current version is r3p2. Thanks, Bob Stewart -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are