632- adjusting column/row position

[Merlin]

i'm using a 632 interfaced to an Atmel micro. my question is this, i'm using the UART to send the lcd data, which works fine. but i want to adjust where certain text shows up, i was trying it like this.

printf("data");
putchar(17); //tells the lcd to adjust
putchar(0); //column 0
putchar(1); //row 1
printf("more data");

i was thinking this would show up as

data
more data

on the lcd. it isn't working though, any suggestions?

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[CF Tech]

Hmmm . . . that looks like it should work.

Try:

printf("data"); 
putchar(17); //tells the lcd to adjust 
putchar(1); //column 1 
putchar(1); //row 1 
printf("more data");

That should do:

data
 more data

Some libraries go out of their way to have trouble sending a 0, maybe that is what is going on. I would not expect something called "putchar()" to have troubles like that though.

 

[Merlin]

yep that worked. i took it another step and put it in the format

printf("data");
putchar(17);
putchar(0x00);
putchar(1);
printf("more data");

using the hex value for the column worked, i'm not for sure why though. so now i've got

data
more data

thanks