CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s

Posted by Eric Keller
on 2001-05-08 13:10:20 UTC
I keep staring at the TI and analog devices dsp chips for this application.
They have many chopper outputs, and they aren't too expensive, although a
lot more than the pic's. microchip just put out some motorcontrol chips.
Also many of the pics have a few channels of pwm, but i don't know how many.
You should be able to do chopper control on a bipolar stepper with two
channels right?

-----Original Message-----
From: Tony Jeffree [mailto:tony@...]
Sent: Tuesday, May 08, 2001 2:34 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s


At 16:10 08/05/2001 +0000, you wrote:
>Just wondering how Larry Edington is coming in his project using PICs
>as replacements for L297s. Things sounded like they were moving fast
>and furious a few weeks back.

I can see that there might be mileage in using PICs to convert step &
direction into full phase control signals; however, using a PIC to emulate
the chopper control aspects of the 297 seems to be a non-starter.

Regards,
Tony




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Discussion Thread

beer@s... 2001-04-20 12:01:01 UTC Re: PICs as replacements for L297s Alan Marconett KM6VV 2001-04-20 17:16:33 UTC Re: PICs as replacements for L297s Larry Edington 2001-04-20 18:09:14 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Larry Edington 2001-04-20 18:29:06 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Ian Wright 2001-04-21 01:11:50 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s paul@a... 2001-04-21 07:23:34 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Larry Edington 2001-04-21 11:05:43 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Kerry 2001-04-21 17:07:33 UTC Re: PICs as replacements for L297s Larry Edington 2001-04-21 17:39:19 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s ballendo@y... 2001-04-21 23:19:09 UTC Re: PICs as replacements for L297s paul@r... 2001-04-22 03:04:43 UTC Re: PICs as replacements for L297s Ian Wright 2001-04-22 04:04:35 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Carol & Jerry Jankura 2001-04-22 05:16:58 UTC RE: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Flosi Gudmundsson 2001-04-22 06:36:12 UTC Re: PICs as replacements for L297s Tom Eldredge 2001-04-22 08:58:45 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Tom Eldredge 2001-04-22 08:58:46 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Kerry 2001-04-22 09:29:05 UTC Re: PICs as replacements for L297s Tim Goldstein 2001-04-22 09:35:07 UTC RE: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Kerry 2001-04-22 10:08:04 UTC Re: PICs as replacements for L297s Tim Goldstein 2001-04-22 10:46:10 UTC RE: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Kerry 2001-04-22 11:36:23 UTC Re: PICs as replacements for L297s Smoke 2001-04-22 18:56:07 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Alan Marconett KM6VV 2001-04-22 21:03:39 UTC Re: PICs as replacements for L297s Larry Edington 2001-04-22 22:01:57 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Larry Edington 2001-04-22 22:03:06 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Larry Edington 2001-04-22 22:31:40 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Larry Edington 2001-04-22 22:40:14 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Alan Marconett KM6VV 2001-04-22 22:51:21 UTC Re: PICs as replacements for L297s paul@r... 2001-04-23 03:12:55 UTC Re: PICs as replacements for L297s Tom Eldredge 2001-04-23 18:46:18 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s chapmani@m... 2001-05-08 04:36:12 UTC PICs as replacements for L297s Dan Mauch 2001-05-08 08:36:20 UTC Re: [CAD_CAM_EDM_DRO] PICs as replacements for L297s Larry Edington 2001-05-08 09:14:35 UTC Re: [CAD_CAM_EDM_DRO] PICs as replacements for L297s Tony Jeffree 2001-05-08 12:19:43 UTC Re: PICs as replacements for L297s Eric Keller 2001-05-08 13:10:20 UTC RE: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Carol & Jerry Jankura 2001-05-08 17:45:10 UTC RE: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s Larry Edington 2001-05-08 18:17:30 UTC Re: [CAD_CAM_EDM_DRO] Re: PICs as replacements for L297s