[Emc-users] Differental Input to PWM

Hi all, Note: Reposted with smaller attachment. I am trying to read an RS422 differential input and convert it to an analog based on the duty cycle, using a Mesa m5i20 Anything I/O board. Provided this post is under the maximum size allowed, the schematic is attached. I really only have access

Re: [Emc-users] Differental Input to PWM

You have to reference the signal with it's counterpart. The signal should have two pins, a plus and minus. A comparator would work to convert the signal to a single ended (referenced to ground) signal. or use a RS-422 transeiver chip (ST490AB). Jim C

Re: [Emc-users] Differental Input to PWM

On Mon, 2008-03-31 at 08:09 -0400, [EMAIL PROTECTED] wrote: You have to reference the signal with it's counterpart. The signal should have two pins, a plus and minus. A comparator would work to convert the signal to a single ended (referenced to ground) signal. or use a RS-422 transeiver

Re: [Emc-users] Differential Input to PWM

Yep. You got it Jim C Kirk Wallace [EMAIL PROTECTED] company.com

[Emc-users] Audio hardware as EMC output?

I've been playing with using an audio amplifier with a tone generator to make a low power VFD, and have been wondering what it would take to build a HAL module to produce simple audio waveforms. After I got to thinking, it seems that audio hardware could probably do a higher frequency PWM than

Re: [Emc-users] Mesa 5I20 in 72 bit parrallel mode

Yes, I want all the pins as I/O. How are you going to get around the counters and PWM's on the HostMot firmware to access the individual pins as I/O? That is why I suggested using the parallel mode firmware. Tony -Original Message- From: [EMAIL PROTECTED] [mailto:emc-users- [EMAIL

Re: [Emc-users] Large Retrofit Advice

I'm open to considering any hardware options, but will there be HAL drivers available? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Sunday, March 23, 2008 6:00 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users]

Re: [Emc-users] Mesa 5I20 in 72 bit parrallel mode

Tony Bussan wrote: Yes, I want all the pins as I/O. How are you going to get around the counters and PWM's on the HostMot firmware to access the individual pins as I/O? That is why I suggested using the parallel mode firmware. I don't know anything about the old HostMot, I'm writing my

Re: [Emc-users] Large Retrofit Advice

hi Tony, I am hoping one of the software guru will port the motenc-lite plugin to the new board. I am very greatfull for all the help we have got. regards, abdul www.VitalSystem.com - Original Message From: Tony Bussan [EMAIL PROTECTED] To: Enhanced Machine Controller (EMC)