Thanks for the response,
the data sheet states
"Select 1 out of 4 lines to reverse the display and to toggle the reverse condition by repeating this instruction.
R1,R0 initial vale is 00. When set the first time the display is reversed and set the second time the display become normal." for the instruction.
Could you just elaborate as to what this actually means. What does it mean to "reverse" the display? Does it mean that the line shall be printed starting from the end at position 1 like "Hello" becomes "olleH"?
I thought that "VERTICAL SCROLL OR RAM ADDRESS SELECT" command should be used for it but did not have success, don't know why.