My Problem
I am trying to fire a PL_PS interrupt created using Vivado 2018.3 to target ARM-Cortex53
I've attached the IP settings and the block diagram as jpegs.
The following code was my attempt with no success.
I summarized as needing to take 10 steps to work with IRQs.
My Question....am I missing any steps ?
During the test sequence I toggle the input signal from low to high using Vivado and monitoring with an ILA. (But nothing happens)
#include <stdio.h>
#include "platform.h"
#include "xil_printf.h"
#include "xscugic.h"
#include "xparameters.h"
XScuGic IntcInstance; //STEP 1 Instance
XScuGic_Config *IntcConfig; //STEP 2 Pointer
// ------------------------------------------------------------ Function Called During trigger-------------------------------------------//
static void my_int_function(){
//disable interrupt
XScuGic_Disable(&IntcInstance,XPAR_FABRIC_INT_IN_INTR);
print("Hello World from handle \n\r");
XScuGic_Enable(&IntcInstance,XPAR_FABRIC_INT_IN_INTR);
}
//---------------------------------------------------Start of Main--------------------------------------------------------//
int main()
{
init_platform();
u32 status;
IntcConfig = XScuGic_LookupConfig(XPAR_SCUGIC_0_DEVICE_ID); //STEP 3 LookUp config XPAR variable came from xparamaters.h
status = XScuGic_CfgInitialize(&IntcInstance,IntcConfig,IntcConfig->CpuBaseAddress); //STEP 4 Assign to Cpu
if(status != XST_SUCCESS){
xil_printf("Interrupt controller initialization failed...");
return -1;
}
XScuGic_SetPriorityTriggerType(&IntcInstance,XPAR_FABRIC_INT_IN_INTR,0x00,3); //STEP 5 "3" for Rising Edge Trigger
// XPAR_FABRIC_INT_IN_INTR is 121U from xparamaters.h
status =XScuGic_Connect(&IntcInstance,XPAR_FABRIC_INT_IN_INTR,(Xil_InterruptHandler)my_int_function,0); //STEP 6 Connect to my function
if(status != XST_SUCCESS){
xil_printf("Connection Failed");
return -1;
}
XScuGic_Enable(&IntcInstance,XPAR_FABRIC_INT_IN_INTR); //STEP 7 enable trigger
Xil_ExceptionInit(); //STEP 8 Required Inits ? Maybe
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,(Xil_ExceptionHandler)XScuGic_InterruptHandler,(void*)&IntcInstance); //STEP 9 required
Xil_ExceptionEnable(); //STEP 10 required
print("Hello World\n\r");
while(1){
}
cleanup_platform();
return 0;
}
