AT89S8253's port bits in C

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11/25/08 21:32
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#160299 - AT89S8253's port bits in C

Hi all!

A very basic thing, but I can't find it anywhere.
Namely, how to programatically access-set value and set the direction of Atmel's AT89S8253 port bits in C. I've tried DDR1=0x... and PORTP1=...; PORT1=... but it doesn't work. I can't find it anywhere on the web.
I've heard that 8051s don't have any port direction settings.

I'd appreciate any help concerning this issue.

Thanks ahead.

BR,
ssergeievich

List of 8 messages in thread

Topic Author Date
AT89S8253's port bits in C              01/01/70 00:00
   What Compiler?              01/01/70 00:00
      8051s don't have any port direction settings.              01/01/70 00:00
   RE: I can't find it anywhere              01/01/70 00:00
   Using 8051 port as output.              01/01/70 00:00
      Such a #define lies to the user              01/01/70 00:00
         Point Taken              01/01/70 00:00
            8051 cannot perform as a SOURCE              01/01/70 00:00

Back to Subject List

Topic	Author	Date
*AT89S8253's port bits in C*		01/01/70 00:00
What Compiler?		01/01/70 00:00
8051s don't have any port direction settings.		01/01/70 00:00
RE: I can't find it anywhere		01/01/70 00:00
Using 8051 port as output.		01/01/70 00:00
Such a #define lies to the user		01/01/70 00:00
Point Taken		01/01/70 00:00
8051 cannot perform as a SOURCE		01/01/70 00:00