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I2C & VSMproteus & AT89c2051...

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operator6wp

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pcf8583 + at892051

HI, I have one problem in VSMproteus....
I used At89c2051 and 24c04a for simulation I2C and I can't read I2C data byte ... is steel 0 value ... but in log view I2C is data ok read....
I connect SCL-P3.0 and SDA-P3.1....

I2C_read:

SETB SDA
MOV b,#8
I2C_R: CALL I2C_wait ;(nop's sub)
SETB SCL
MOV C,SDA
CLR SCL
RLC A
DJNZ b,I2C_R
RET


in sda is not change bits.... how to read... whats wrong.... HELP!!!!
 

pcf8583 mit at89c2051

I find Error.....

I Have two connected I2C devices to At89c2051 , when I disconnect pcf8583, eeprom 24c04 work correct.... but, why cant simulation two I2c devices.....?
 

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