Notes- March 12, '98

I have modified the LCD tools to include the various new tools discussed in class;

• LCD_RESET. Use this near the top of your program to allow you to manually reset and to verify the LCD is working (ten dots).

• LCD_DELAY. This is to avoid the aggravation of you writing a delay program. Pass the delay in W.

• LCD_BCD_WORD. Displays content of RAM locations 41H and 42H in decimal.

• LCD_DEBUG. Displays W, Z, C, the content of 40H as a character and the values in locations 10H - 17H.

• LCD_VAL. Converts content of W to two hex characters and displays.

• LCD_CHAR. Displays content of W as a character.

Note that the current version is LCD_V4.ASM. Be sure to obtain the latest version.

LCD_V4.ASM uses RAM locations 40-4FH and Program memory 300 - 3FFH. Thus, these are not avaialble to you.

Program LCD_TST.ASM illustrates the tools.

I will be away during spring break, and will not have access to e-mail. The lab will be open. Please police it.

Have a restful break!