misnomerfrenzy
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Hi,
It seems to be a cliche to ask code help for scrolling display. But, mostly the help is available for scrolling LED display or Char LCD display.
I am using 128x64 GLCD on which we write data using column scanning. So, scrolling of data from left to right or right to left is easy and I have implemented code for it.
But, I dont know how to scroll data from down to up and vice versa.
I have declared a buffer
For horizontal scorlling, I follow this method...
However, for vertical scrolling following logic cant work
If possible, please let me know the algorithm or sample code which can scroll text in vertical direction
It seems to be a cliche to ask code help for scrolling display. But, mostly the help is available for scrolling LED display or Char LCD display.
I am using 128x64 GLCD on which we write data using column scanning. So, scrolling of data from left to right or right to left is easy and I have implemented code for it.
But, I dont know how to scroll data from down to up and vice versa.
I have declared a buffer
Code:
//u8Row max value 63; u8Column max value 128
G_u8DisplayRAM[u8Row][u8Column];For horizontal scorlling, I follow this method...
Code:
for(u8Index= u8StartColumn; u8Index<u8EndColumn; u8Index++)
G_u8DisplayRAM[u8Row][u8Index] = G_u8DisplayRAM[u8Row][u8Index+1]; //left to right
OR
G_u8DisplayRAM[u8Row][u8Index] = G_u8DisplayRAM[u8Row][u8Index-1]; //right to leftHowever, for vertical scrolling following logic cant work
Code:
for(u8Index= u8StartRow; u8Index<u8EndRow; u8Index++)
{
for (u8Column=u8StartColumn; u8Column < u8EndColumn; u8Column++)
{
G_u8DisplayRAM[u8Index][u8Column] = G_u8DisplayRAM[u8Index+1][u8Column]; //up to down
OR
G_u8DisplayRAM[u8Index][u8Column] = G_u8DisplayRAM[u8Index-1][u8Column]; //down to up
}
}If possible, please let me know the algorithm or sample code which can scroll text in vertical direction