[mC for PIC]GLCD_read_data() problem

[bruno]

Hi,

this code does not give expected result :

Code: Select all

                        GLCD_set_side(x) ;
                        GLCD_set_x(x % 64) ;
                        GLCD_set_page(y) ;
                        *map++ = GLCD_read_data() ;

first map byte gets unpredictable result and content is shifted by one

to fix, read GLCD once for nothing :

Code: Select all

                        GLCD_set_side(x) ;
                        GLCD_set_x(x % 64) ;
                        GLCD_set_page(y) ;
                        GLCD_read_data() ;  // now it works
                        *map++ = GLCD_read_data() ;

(using PIC18F4620)