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i2c running reliable with higher priority interrupts ?

Question asked by Renschler.Uwe on Sep 12, 2011
Latest reply on Sep 12, 2011 by Renschler.Uwe
I am finalising a product with a STM32L15x CPU. Now I am fine tuning operation, and I have found no way to make I2C run reliabel, if there is another interrupt with higher priority beside the I2C.
1.) Is there any specification out, which describes the I2C in more details than the RM0038 or the I2C application notes ? (especially any timing related information ???)
2.) Is there somebody out, who has an I2C running reliable WITH other higher priority interupts ?
Any hints are welcome. Maybe someone from ST can give more detailed informations about the I2C limits ???