2013-03-29 18:26:56 +00:00
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The STMPE811 driver comes with two different #defines to perfectly fit
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your application:
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STMPE811_NO_GPIO_IRQPIN
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This Macro is meant to be set in your board file. When you set this macro to
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TRUE, the GINPUT module will not use the IRQ lane which might be connected
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to a GPIO pin to recognize interrupts by the STMPE811 controller. This
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costs a few more I2C calls.
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When the interrupt IRQ pin is connected to a GPIO of your MCU, set this
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macro to FALSE.
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STMP811_SLOW_CPU
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If you have a slow CPU and you need to take care of your resources, you can
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set this macro TRUE. This will save some IRQs and therefore a few I2C calls.
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The disadvantage is a little higher response time.
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If you don't want to draw continious lines on your display, it's recommended
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to set this to TRUE anyways.
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