Hi Vasile, 2010/5/7 vasile surducan <[email protected]>: > Unfortunately the problem is not so simple, could be. What I did is put your code into context (that is - include board_16f877a_startersguide.jal to get a quick start with a configuration and then add code to make your statement work). With this addition it worked for me. Supply me with a complete file (if you can, start with a board-include) that shows your full problem.
> Probably there is a problem in how LCD_bold'put is calling the LCD'put > procedure, I've inspected the assembler file but I do not like it at all, > and don't understand how the compiler is using the put procedures. The put procedures are the way the compiler passes to put procedures (LCD is not a var, it is a pseudo-var). These are also used when a procedure var is defined 'volatile'. That's JAL... > I've tested some movie chars on HD44780. (Stef Mientky did it long time ago) Did Stef use more then 8 chars at the time? > Here is the filling glass for example, which is using almost the same ideea > and works ok: I can't test now, but this probably works okay with me too. It only uses one custom char at the time. >> > Nope or rather HD44780 will not allow more than 8 to be >> > displayed at once. If you change one then all previous >> > occurences on the display will change. > > Seems that's the problem, but I must test something more...it does not be > displayed at once. It does not explain why your display get jabbered. It only explains why custom chars get erases or changed. Afaik the lcd lib does not keep track of the cursor position in the PIC. And when you define a custom char, the cursor position gets changed and you need to set it back to the visible area, e.g. 0,0, as a safety measure. Your application code should, after the definition a custom char, put it at the desired position. Again, If you send me a source file that shows the issue and that I can run with a board file without half an hour work, I'm happy to take a look. Joep -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
