QUestions about the modified Liquid Crystal library for backpack

[egdinger]

I was trying to adapt the provided library for the backpack to use hardware SPI instead of shiftout, and noticed the interesting two lines beginning at line 94

Code: Select all

  // we can't begin() yet :(
  begin(16,1);

In the constructor for SPI liquid crystal object. Does anyone know why it's there, when the comments say we shouldn't do this, and if removing breaks anything? Having the begin() there causes problems with the hardware SPI because it tries to use the interface before it's initialized and hangs when creating a global LiquidCrystal object. Taking it didn't seem to affect anything, but I didn't do any through testing.

[adafruit]

dont remember
but you should only have to do a search and replace for the shiftout function