No Erik,
we have a I2C-ISR that works fine (it seems so).
But when we change the following statements inside the I2C-ISR, the I2C-Communication is corrupt. The only difference is the EA=0 and
EA=1 around the reading of the global variable!


Original statements inside the I2C-ISR:
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static unsigned char ucd;

ucd=ucd_GlobalCounter



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Changed statement inside the I2C-ISR:
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static unsigned char ucd;

EA=0;
ucd=ucd_GlobalCounter
EA=1;