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mcad
Joined: 25 Nov 2007
Posts: 48
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| DC Motor duty Cycle LCD Display problem2 |
 Posted: Fri Nov 30, 2007 11:47 am |
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Hi All,
I want to display the duty cycle value of the DC motor. However, as for the display operation, I have some problems.
How can I display the duty cycle value in a persistent way until it changes with user affect(speed up or slow down the motor)
For example, I want that the LCD screen should display: "DUTY: 100" until duty changes. I do not want to show the "DUTY: 100" just when the duty cycle value is 100. Instead, I want to show it as long as the dduty cycle is 100. So, how can I provide this persistence ?
Thanks |
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Neutone
Joined: 08 Sep 2003
Posts: 839
Location: Houston
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| Re: DC Motor duty Cycle LCD Display problem2 |
| Posted: Fri Nov 30, 2007 12:20 pm |
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| mcad wrote: | Hi All,
I want to display the duty cycle value of the DC motor. However, as for the display operation, I have some problems.
How can I display the duty cycle value in a persistent way until it changes with user affect(speed up or slow down the motor)
For example, I want that the LCD screen should display: "DUTY: 100" until duty changes. I do not want to show the "DUTY: 100" just when the duty cycle value is 100. Instead, I want to show it as long as the dduty cycle is 100. So, how can I provide this persistence ?
Thanks |
You can think of it as if each segment of the LCD display is a bit in RAM. This is true for basically every LCD controller chip. The display will only change when you write to it or cycle power. |
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