I have a overlay problem: I've got one function who is called from main and from my interrupt service routine. When the interrupt calls the function my local variables point to an indefinite adress. I have the problem however I deactivate overlaing. My programm:
void main (void) { ... eventChannelPtr = XSDevice_GetEventChanByID( &XSIM_DeviceGroups, groupID, chanID)} } void task_1ms(void) interrupt 1 using 1 { ... eventChannelPtr = XSDevice_GetEventChanByID( &XSIM_DeviceGroups, groupID, chanID); } tXSEvent_ChannelPtr XSDevice_GetEventChanByID( tXSDevice_DeviceEntry* deviceEntryPtr, tXS_Group groupID, tXS_Channel chanID) { tXSEvent_SourcePtr eventSrcEntry; tXSEvent_ChannelPtr retVal; ... eventSrcEntry = &deviceEntryPtr->eventListPtr[groupID]; }
the eventSrcEntry is at D:0x01. D:0x01 is register R1 in register Bank 1. Do you expect eventSrcEntry to keep its value after the function returns until the next call ?