McBsp As GPIO

Started by Atish March 30, 2008
hiii........everybody....i want to control motor with TI 6713 DSK.I
think i can do it...with by configuring  McBSP pins as i/p.is it
possible n can i drive a 6v dc motor with it??
plz..help it's urgent
On Mar 30, 12:58 pm, Atish <atish...@gmail.com> wrote:
> hiii........everybody....i want to control motor with TI 6713 DSK.I > think i can do it...with by configuring McBSP pins as i/p.is it > possible n can i drive a 6v dc motor with it?? > plz..help it's urgent
No.
On Mar 30, 11:26 pm, John <sampson...@gmail.com> wrote:
> On Mar 30, 12:58 pm, Atish <atish...@gmail.com> wrote: > > > hiii........everybody....i want to control motor with TI 6713 DSK.I > > think i can do it...with by configuring McBSP pins as i/p.is it > > possible n can i drive a 6v dc motor with it?? > > plz..help it's urgent > > No.
why sir??n is der ny oder way so dat i can control motor with TI6713 DSK?
Atish schrieb:
> On Mar 30, 11:26 pm, John <sampson...@gmail.com> wrote: >> On Mar 30, 12:58 pm, Atish <atish...@gmail.com> wrote: >> >>> hiii........everybody....i want to control motor with TI 6713 DSK.I >>> think i can do it...with by configuring McBSP pins as i/p.is it >>> possible n can i drive a 6v dc motor with it?? >>> plz..help it's urgent >> No. > > why sir??n is der ny oder way so dat i can control motor with TI6713 > DSK?
SYNTAX ERROR READY? *blink, blink*
On Mar 30, 3:04 pm, Atish <atish...@gmail.com> wrote:
> On Mar 30, 11:26 pm, John <sampson...@gmail.com> wrote: > > > On Mar 30, 12:58 pm, Atish <atish...@gmail.com> wrote: > > > > hiii........everybody....i want to control motor with TI 6713 DSK.I > > > think i can do it...with by configuring McBSP pins as i/p.is it > > > possible n can i drive a 6v dc motor with it?? > > > plz..help it's urgent > > > No. > > why sir??n is der ny oder way so dat i can control motor with TI6713 > DSK?
You don't give any info about the motor. If you need to source 0-6VDC to control the speed, forget about it. The McBSP as GPIO only gives you 0 or 3.3V with some tiny amount of current. Now if you want to supply a switching waveform to a PWM motor driver, controlling sweed by duty cycle, the DSK might be able to do that. Here are some example circuits for 3.3V: http://www.picotech.com/applications/pwm_drivers/index.html John John
On Mar 31, 5:45 am, John <sampson...@gmail.com> wrote:
> On Mar 30, 3:04 pm, Atish <atish...@gmail.com> wrote: > > > On Mar 30, 11:26 pm, John <sampson...@gmail.com> wrote: > > > > On Mar 30, 12:58 pm, Atish <atish...@gmail.com> wrote: > > > > > hiii........everybody....i want to control motor with TI 6713 DSK.I > > > > think i can do it...with by configuring McBSP pins as i/p.is it > > > > possible n can i drive a 6v dc motor with it?? > > > > plz..help it's urgent > > > > No. > > > why sir??n is der ny oder way so dat i can control motor with TI6713 > > DSK? > > You don't give any info about the motor. If you need to source 0-6VDC > to control the speed, forget about it. The McBSP as GPIO only gives > you 0 or 3.3V with some tiny amount of current. Now if you want to > supply a switching waveform to a PWM motor driver, controlling sweed > by duty cycle, the DSK might be able to do that. Here are some example > circuits for 3.3V: > > http://www.picotech.com/applications/pwm_drivers/index.html > > John > > John
Thank u for ur reply sir...can't i use..motor drivers..and transistors..for amplification...n den use dc motor...i just want to switch on a dc motor and off...so..can i do this??
hi,

i could not make out exactly what information you require, but do see
google for "power high side switch". this is also called a latch
sometimes. the technical name might not be either. an example is bsp742t.
this would solve the problem that john had mentioned in the previous
post.(3.3 v output to a 6 v motor). in case the input is logic high, it
will switch on power to the load. 

but integrating it straightaway with your dsk would require some research.
there might be surge/impedance problems. i think a simple microcontroller
would be an easier solution than a 6713 dsp.

aps



>hiii........everybody....i want to control motor with TI 6713 DSK.I >think i can do it...with by configuring McBSP pins as i/p.is it >possible n can i drive a 6v dc motor with it?? >plz..help it's urgent >
> >Thank u for ur reply sir...can't i use..motor drivers..and >transistors..for amplification...n den use dc motor...i just want to >switch on a dc motor and off...so..can i do this?? >
motor drivers and transistors? are you going to supply power to the dc motor through the dsk? Well designing/making a transistor amplifier circuit is surely difficult and i dont understand what you mean by motor drivers with transistors. i do not know more about motors but i think they require a lot of current when they start. the gpio anyways can give 3.3v and the power might not be sufficient to start/run the motor (might damage the dsp)