Hi there,
I need more than eight user defined characters in one LCD screen.
How can that be done using the HD44780U display controller?
What I want to do?
Combine four adjacent (5*7 dots) characters + cursor to one big number. Characters 1 and 2 from lines 1 and 2 will result in one big number.
I thought of following steps:
1) make four user defined characters (1 to 3) for a big 1
2) write those characters on the display
3) make four user defined characters (1 to 3) for a big 2
4) write the new characters in the display, and so on… …
With the above sequence I thought I will end up with a large 12 on the display but:
The first written big number 1 is overwritten by an even big 2 so I end up with 22 instead of 12.
With a delay between the two write sequences I clearly first see a big 1 and then a big 22.
So the display don’t copy the data of the user defined characters into DDRAM but the address of the user defined character.
Thanks for any inputs… …
I need more than eight user defined characters in one LCD screen.
How can that be done using the HD44780U display controller?
What I want to do?
Combine four adjacent (5*7 dots) characters + cursor to one big number. Characters 1 and 2 from lines 1 and 2 will result in one big number.
I thought of following steps:
1) make four user defined characters (1 to 3) for a big 1
2) write those characters on the display
3) make four user defined characters (1 to 3) for a big 2
4) write the new characters in the display, and so on… …
With the above sequence I thought I will end up with a large 12 on the display but:
The first written big number 1 is overwritten by an even big 2 so I end up with 22 instead of 12.
With a delay between the two write sequences I clearly first see a big 1 and then a big 22.
So the display don’t copy the data of the user defined characters into DDRAM but the address of the user defined character.
Thanks for any inputs… …