| ??? 12/21/04 08:03 Read: times |
#83564 - Another comment - symbolic names Responding to: ???'s previous message |
sbit LCD_RS = P1^0 ; sbit LCD_R_W = P1^1; sbit LCD_ENB = P1^2; sbit TST_LED = P2^0; You have nicely given these port bits descriptive, symbolic names; this is good, as it makes the code clearer, and means that the code can easily be changed for different connections by simply editing these definitions. However, you have just used "P0" for the actual data writes; it'd be better to also give this a meaningful name - otherwise, to use a different port you have to go through the whole code searching for "P0" and replacing with whatever. eg, see http://www.8052.com/forum/read.phtml?id=83435 |
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