Sign in
Search 68hc12
Subscribe to 68hc12
68hc12 by Keywords
68HC1 | 812A4 | 9S12DP256 | Bootloader | CodeWarrior | D60A | Debugger | DP256 | ECT | EEPROM | EVB | Flash | HC1 | HCS12 | I2C | IAR | ICC1 | Interrupts | LCD | M68KIT912DP256 | MC9S12DP256 | MC9S12DP256B | Metrowerks | Motor | MSCAN | Multilink | PLL | Quadrature | SDI | SPI | Transceiver | XFC
Ads
Discussion Groups
See Also
Discussion Groups | 68HC12 | Fw: Micro step control of step motor
Join our technical discussions about Freescale Microcontrollers: M68HC12. (Freescale Semiconductor is a Subsidiary of Motorola).
Re: Fw: Micro step control of step motor - º´ÁÖ Áø - Apr 22 3:49:00 2003
|
Thanks to Mr. Benny. Do you mean that it's impossible to divde the step more precisely with only software? As i heard from a Micro step driver supplier , If I add some hardware on my board, I can devide the step over than 2000 with 240 step motor. but i can not find the application. Could you recommend a book or document to help me understand step motor control? Regards wrote:You can not run a step motor of 240 steps up to 2000 steps. There is a technique to run it in half step mode - which means up to 480 steps, but you will lose a lot of power. If you need 2000 steps - take a step motor with reduction gear (you will need a good one otherwise you will have bad resolution because of the low quality gear) Benny ---------- Forward Message ---------- To: Motorola <> From: º´ÁÖ Áø Date: Tue, 22 Apr 2003 16:04:07 +0900 (JST) Subject: [68HC12] Micro step control of step motor Hi everybody Could anybody tell me how to control the step motor?In general, 200 step motor is normal, but i want to precise the step more detail, over than 2000 step with 240 step motor. but i can not find the solution.Some guy tell me I should use hardware solution, but other guy tell me it's possible only with software(9S12H256).If i should add hardware for micro step control, Could anybody give me a reference? and I can do it with software, Direct me how i do it.regards -------------------------------------------------------- To unsubscribe from this group, send an email to: To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu --------------------------------- °ª½Î°í Ç°Áú ÁÁÀº ÀÎÈ - ¾ßÈÄ! »çÁø µ· µÇ´Â Áß°íÂ÷ ¼îÇθô - ¾ßÈÄ! ÀÚµ¿Â÷ [Non-text portions of this message have been removed] |
(You need to be a member of 68hc12 -- send a blank email to 68hc12-subscribe@yahoogroups.com )
Fw: Micro step control of step motor - Author Unknown - Apr 22 4:39:00 2003
|
You can not run a step motor of 240 steps up to 2000 steps. There is a technique to run it in half step mode - which means up to 480 steps, but you will lose a lot of power. If you need 2000 steps - take a step motor with reduction gear (you will need a good one otherwise you will have bad resolution because of the low quality gear) Benny ---------- Forward Message ---------- To: Motorola <> From: º´ÁÖ Áø <> Date: Tue, 22 Apr 2003 16:04:07 +0900 (JST) Subject: [68HC12] Micro step control of step motor Hi everybody Could anybody tell me how to control the step motor?In general, 200 step motor is normal, but i want to precise the step more detail, over than 2000 step with 240 step motor. but i can not find the solution.Some guy tell me I should use hardware solution, but other guy tell me it's possible only with software(9S12H256).If i should add hardware for micro step control, Could anybody give me a reference? and I can do it with software, Direct me how i do it.regards |
|
|
(You need to be a member of 68hc12 -- send a blank email to 68hc12-subscribe@yahoogroups.com )
Fw: RE: Micro step control of step motor - Author Unknown - Apr 22 11:37:00 2003
|
Louis, is it possible to hold the motor (stop mode) on a microstep you described and the motor will not "run away" to the nearest half step? Benny ---------- Forward Message ---------- To: From: º´ÁÖ Áø <> Date: Tue, 22 Apr 2003 20:24:07 +0900 (JST) Subject: RE: [68HC12] Micro step control of step motor hello louis Could you tell me how to impliment it on my software and How to make SIN and COS tableI (I made 48 sin/cos table each) ? I try to move a first step on step motor control. so I need your advice and direction. bye Louis Eames <> wrote: It is possible to have up to 25 microsteps per full step of your 200 step motor. This gives you 5000 microsteps in one revolution of the motor. This is done by altering the currents in the windings using a DAC. Each microstep can be calculated using a sine and cosine method of the angle you require from the nearest full step. Louis -----Original Message----- From: º´ÁÖ Áø [mailto:] Sent: 22 April 2003 08:04 To: Motorola Subject: [68HC12] Micro step control of step motor Hi everybody Could anybody tell me how to control the step motor?In general, 200 step motor is normal, but i want to precise the step more detail, over than 2000 step with 240 step motor. but i can not find the solution.Some guy tell me I should use hardware solution, but other guy tell me it's possible only with software(9S12H256).If i should add hardware for micro step control, Could anybody give me a reference? and I can do it with software, Direct me how i do it.regards --------------------------------- °ª½Î°í Ç°Áú ÁÁÀº ÀÎÈ - ¾ßÈÄ! »çÁø µ· µÇ´Â Áß°íÂ÷ ¼îÇθô - ¾ßÈÄ! ÀÚµ¿Â÷ [Non-text portions of this message have been removed] -------------------------------------------------------- To unsubscribe from this group, send an email to: To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu -- The information in this email may be confidential, privileged and/or exempt from disclosure under applicable law. If you are not the intended recipient, you may not copy or use it, or disclose it to anyone else. Unauthorised use, copying or disclosure is strictly prohibited and may be unlawful. The views expressed in this e-mail are personal and may not necessarily reflect those of Edinburgh Instruments Ltd. or any of its divisions, unless explicitly stated otherwise. We do not accept any liability or responsibility for: (1) changes made to this email after it was sent, or (2) viruses transmitted through this email or any attachment. If you have received this transmission in error please notify the sender immediately and delete the message from your email. For further information on Edinburgh Instruments please visit our website at http://www.edinst.com Yahoo! Groups Sponsor -------------------------------------------------------- To unsubscribe from this group, send an email to: To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu ---------- End of Forward Message ---------- |
(You need to be a member of 68hc12 -- send a blank email to 68hc12-subscribe@yahoogroups.com )