AT89S51 + 16x2 LCD

Hi Rickey, I'm trying to write some code for above parts.

1). For 8-bit operation : P0.0 - P0.7 for data and P3.2, P3.3 & P3.4 for RS, RW and E. Will I have problem with Port O as it is an open drain type ?. Will I need pull ups resistor for P0 ?.

2). For 4-bit operation : P0.4 - P0.7 for data and P3.2, P3.3 & P3.4 for RS, RW and E. Same question as above.

Thanks,
SGH
... Read Compelte post
Other Tags: p3   p0   pull ups   amp   open drain   
Posted by SGH on Sat Apr 21 2007, 06:20 AM

Conversation

Mon Nov 30 2020, 12:36 AM
Issac
Have you ever considered writing an e-book or guest authoring on other websites? I have a blog based upon on the same ideas you discuss and would really like to have you share some stories/information. I know my subscribers would appreciate your work. If you're even remotely interested, feel free to send me an email. https://cheapessaywritinghelp.com/ writing an essay writing an essay
Sun Nov 29 2020, 11:47 PM
Anke
Appreciate this post. Let me try it out. https://usessaywritingservice.com best essay writing service best essay writing service https://usessaywritingservice.com
Sun Nov 29 2020, 08:16 PM
Tomuld
only
Sun Nov 29 2020, 08:15 PM
Rudy
Fantastic post but I was wondering if you could write a litte more on this topic? I'd be very grateful if you could elaborate a little bit more. Cheers! https://ordertermpaper.com essay writing sites essay writing sites https://ordertermpaper.com/
Thu Jun 11 2020, 06:27 AM
anudee
sir could please send the code for I2C and wifi interfacing with 8051

Downloads

Comments

Mirza123
Thu Jun 25 2020, 03:46 PM
eunicelove124
Mon Jun 22 2020, 03:03 PM
cerouno
Tue Jun 16 2020, 05:10 PM
Marce
Sat Jun 13 2020, 09:43 PM
Davidthils
Thu May 21 2020, 12:44 PM
Jakeror
Thu May 21 2020, 01:28 AM
motorCar
Wed May 20 2020, 07:05 PM
Vordrync
Wed May 20 2020, 11:52 AM

Online

Guests: 100, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 38215
Newest member: Mirza123