int Init_ScuTimer(void)
{
int Status = XST_SUCCESS;
XScuTimer_Config *ConfigPtr;
int TimerLoadValue = 0;
ConfigPtr = XScuTimer_LookupConfig(TIMER_DEVICE_ID);
Status = XScuTimer_CfgInitialize(&TimerInstance, ConfigPtr,
ConfigPtr->BaseAddr);
if (Status != XST_SUCCESS) {
xil_printf("In %s: Scutimer Cfg initialization failed...\r\n", __func__);
return XST_FAILURE;
}
Status = XScuTimer_SelfTest(&TimerInstance);
if (Status != XST_SUCCESS) {
xil_printf("In %s: Scutimer Self test failed...\r\n", __func__);
return XST_FAILURE;
}
XScuTimer_EnableAutoReload(&TimerInstance);
/*
* Set for 250 milli seconds timeout.
*/
TimerLoadValue = XPAR_CPU_CORTEXA9_0_CPU_CLK_FREQ_HZ / 8;
XScuTimer_LoadTimer(&TimerInstance, TimerLoadValue);
return XST_SUCCESS;
}
int main()
{
XScuTimer_Config *TMRConfigPtr; //timer config
//Disable cache on OCM
Xil_SetTlbAttributes(0xFFFF0000,0x14de2); // S=b1 TEX=b100 AP=b11, Domain=b1111, C=b0, B=b0
print("CPU1: starting\n\r");
//GPIO Initilization
XGpio_Initialize(&Gpio, GPIO_DEVICE_ID);
XGpio_SetDataDirection(&Gpio, CHANNEL, 0x00);
XGpio_DiscreteWrite(&Gpio,CHANNEL, 0xff);
//timer initialisation
TMRConfigPtr = XScuTimer_LookupConfig(TIMER_DEVICE_ID);
XScuTimer_CfgInitialize(&Timer, TMRConfigPtr,TMRConfigPtr->BaseAddr);
XScuTimer_SelfTest(&Timer);
//load the timer
XScuTimer_LoadTimer(&Timer, TIMER_LOAD_VALUE);
SetupInterruptSystem(&Intc, &Timer,TIMER_IRPT_INTR);
XScuTimer_Start(&Timer);
print("CPU1: configured\n\r");
while(1){
}
return 0;
}
