Amp Items tagged with Amp
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
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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, 11:50 am
Downloads
New Downloads added.
8051 projects & Protocol libraries
Current Libraries:
I2C library (assembly) C coming soon..!
UART library (API provided)
8051 Projects:
AT89C4051 as RTC
CLI for 8051(AT89C51)... Read Compelte post
8051 projects & Protocol libraries
Current Libraries:
I2C library (assembly) C coming soon..!
UART library (API provided)
8051 Projects:
AT89C4051 as RTC
CLI for 8051(AT89C51)... Read Compelte post
Other Tags: 8051 projects library api at89c51 uart amp
Posted on Sat Dec 10 2005, 05:26 am