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Does SSD1963 need RD port at all?

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It seems that SSD1963 does not use the RD port. I had a look at board_ssd1963_gpio.h. It defines two macros for setting and clearing this pin (Set_RD, Clr_RD), however Clr_RD is never called. Can RD simply be wired to VDD? (by the way, the UTFT library suggests wiring RD to VDD for SSD1963).

And another question: am I right to assume that palSetPad sets any pin to low and palClearPad sets it to high? I am trying to convert the driver to Teensy and I am a bit confused because the naming seems to be inverse to what it supposedly does.

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