I have wrote a nested interrupt in Blackfin based on VDK system but it is not working!
I have an interrupt coming from a sensor with IVG13 vector and when this interrupt invoked, then it will acquire the data from the sensor but this acquiistion is based on I2C. The acquisition process is based on interrupt of TWI which is done on IVG8. The problem is that the nested interrupt is not working so when the IVG13 is invoked to read the sensor data using I2C interface then the interrupt IVG8 is not triggerd at all although I see the ILAT register shows me that the interrupt of IVG8 came but the system does not go to the interrupt service routine.
Please what do you suggest is the problem?