Been there done that but didnt get the T-Shirt for it!

After 2 weeks of beating my head against the wall here I am just going to use the UART on the LPC764 and do rs232 to the display. and will use the I2C for other components. Has anyone gotten I2C to work with an 8051?

Sorry its so long!

Im feeling your pain bro! I am working with a philips 87LPC764 and do not get an ack back when sending the address. Heres my code:

;****************************************************************************
; Begin Code ...

BUMP!

In the datasheet section 2.1.7 its talks about setting to jumpers with the label I to enable I2C

To communicate by I2C two jumpers have to be set into the I2C position left of the power SIP connector. The
I2C setting is default on the LK162-12.

on the board I have r.210 there are no pads labeled ...

Miles I understand that......

I was wondering if it had to be accessed via 0FEh 50H or can I just use 50h alone when selecting the slave?

If the display is preset to 50h. Is it necessary to set the I2C address thru the microcontroller or can I select it as follows?

MainSend:
mov A,#LCDW ; set slave address (8

Just noticed that this was a 2003 thread! WOW

Sample code for a 8051 micro seems hard to come by. I am writing code for a Philips LPC764 in assembly. I will be more than glad to shar it with you when Im done!