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individual segment flashing in msp430 segment LCD

JIS JOHN
Prodigy 105 points
Other Parts Discussed in Thread: MSP430F4152

Hi,

Please let me know if there are any register settings in LCD_A registers to blink individual segments in a segment LCD using msp430f4152 controller without using any software logic to flash the segments at a periodic intervals. I am currently using LCD_A controller and LCD mux rate of 3-mux .

Regards,

Jis

  • 0
    Guru 227245 points

    Do you expect that someone comes with some not documented LCD_A register with new features?

    The users guide LCD_A description does not contain anything like blinking. It shows a method to simulate blinking by switching the LCDON bit on and off – for the whole display. That’s all.

    If the MSP would have a DMA controller, you could use a timer to copy two versions of the LCD output to the LCD memory, triggered by a timer. But your MSP doesn’t have DMA, so all you can do is to do it in software:
    Set-up a timer to trigger an ISR at your desired blink frequency and then copy the alternating contents from ram to LCD memory.

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