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2nd UART on at89c51re2

Hello!

I have problem with configuration of UART_1 on at89c51re2 micro controller I supposed that is because I am using a at89c51xd2.h header file which does not include definition for UART_1. When I try to define
Sbit (ES1 , 0xB1, 3);
in IEN1 (0xB1) register i receive error message error C142: 'SFR': invalid base address.

Any help?

Thanks in advance

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0 ImPer Westermark over 13 years ago in reply to HansBernhard Broeker

Now, I'm terribly confused. Search still showed correct link marked. I must have missclicked there - my linked page showed up directly above the correct link.
http://www.keil.com/dd/chip/3986.htm

And then both UART are listed as supported.
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0 ImPer Westermark over 13 years ago in reply to HansBernhard Broeker

Now, I'm terribly confused. Search still showed correct link marked. I must have missclicked there - my linked page showed up directly above the correct link.
http://www.keil.com/dd/chip/3986.htm

And then both UART are listed as supported.
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0 Michael Reizing over 13 years ago in reply to ImPer Westermark

In datasheet for AT89C51RE2 I found that UART_1 is OCD (On Chip Debug): Does that mean that it can not be used as UART_0?

Thanks
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