Difference between MC9S12H256 and MC9S12DP256 | 68HC12

Hello, Can I user PWM ports output from DP256 directly to the servo motor. Does it have protection against ove sinking ? Or is that above is possible only in H256 ? Thanks Naheed

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In a message dated 8/13/03 11:32:34 AM Eastern Daylight Time, writes: Can I user PWM ports output from DP256 directly to the servo motor. Does it have protection against ove sinking ? Or is that above is possible only in H256 ? ========================================= The datasheet gives the voltage and current capabilities of the pins. CPU pins are usually ttl logic levels... 5 v at a few ma. Cant drive much of a motor with that can you? Without a doubt, you need a big h bridge that will put out whatever voltage and current your motor wants. Seems logical when you think about it. [Non-text portions of this message have been removed]

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If you are talking about a standard hobby servo, it has a 3 pin connector with power, ground and control. The PWM outputs from the HC12 are perfectly suited to drive the control input directly. Just make sure the ground reference for the HC12 is the same as the ground reference for the power supply that you connect to the power input of the servo. Jim wrote: > In a message dated 8/13/03 11:32:34 AM Eastern Daylight Time, > writes: > Can I user PWM ports output from DP256 directly to the servo motor. > Does it have protection against ove sinking ? > Or is that above is possible only in H256 ? > ========================================= > The datasheet gives the voltage and current capabilities of the pins. CPU > pins are usually ttl logic levels... 5 v at a few ma. Cant drive much of a motor > with that can you? Without a doubt, you need a big h bridge that will put out > whatever voltage and current your motor wants. Seems logical when you think > about it. > [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 >

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Discussion Groups | 68HC12 | Difference between MC9S12H256 and MC9S12DP256

Difference between MC9S12H256 and MC9S12DP256 - Naheed M K - Aug 13 10:31:00 2003

Re: Difference between MC9S12H256 and MC9S12DP256 - Author Unknown - Aug 13 11:18:00 2003

Re: Difference between MC9S12H256 and MC9S12DP256 - Jim Fiocca - Aug 13 11:44:00 2003