Interrupt port 6.0

[pmarras]

Posted on May 22, 2008 at 05:49

Interrupt port 6.0

[pmarras]

Posted on May 17, 2011 at 09:53

Hi,

I have to controll the port 6, pins 0 and 4, that rappresent two signal from an encoder. I try first to envelope the SW for the first port with interrupt. The problem is that don't run. Can you help me, please?

this is my code:

void Interrupt_encoder(void){

//GPIO6 init

SCU->PRR1 |= 0x00100000; //scelgo la porta 6

SCU->PCGR1 |= 0x00100000;

SCU->GPIOIN[6] |= 0x00;

GPIO6->DDR=0x00;

//Clock per Wiu

SCU->PRR1 |= 0x00002000;

SCU->PCGR1 |= 0x00002000;

//Clock per Vic

SCU->PRR0 |= 0x0020;

SCU->PCGRO |= 0x0020;

//Connect pin 6.0 to VIC1.12

SCU->WKUPSEL &= 0xFE3F;

SCU->WKUPSEL |= 0x0000 ;

//mette l'indirizzo dell'interrupt in VAir

VIC1->VAiR[11] = (unsigned int)&prova_encoder;

//enable interrupt

VIC1->INTSR &= 0xEFFF;

VIC1->VCiR[11] &= 0xFFC0;

VIC1->VCiR[11] = 0x002C;

//programma la Wiu a trasferire l'interrupt al Vic

WIU->PR |= 0xFFFFFFFC;

WIU->CTRL |= 0x02;

WIU->MR |= 0xFFFFFFFC;

//enable interrupt

VIC1->INTER |= 0x0800; //interrupt11

}

[rgreenthal]

Posted on May 17, 2011 at 09:53

I am not sure, but you stated P6.0 Vic1.12

so shouldn't

VIC1->INTER |= 0x0800; //interrupt11

be

VIC1->INTER |= 0x1000; //interrupt12

may want to use their function

VIC_ITCmd(EXTIT2_ITLine, ENABLE);

[pmarras]

Posted on May 17, 2011 at 09:53

tnk,

I have resolved the problem trought the function of WIU and VIC library.

Port 6.0 ---->interrupt16 (see manual and the Wic' example)

Port 6.4 ---->interrupt20

Using thus functions ( taken advantage from the structure of the Wic' example ) the initial problem was how to run the interrupt software, and where write it.

I saw that in the file 91x_IT there was declared function that are utilizable for thus, and one function of the example call it.

So if you use port6, have to use EXINT2_ function and write your interrupt software. In this way is very simple.

(for port5 EXINT1, for 7 EXINT3, ...)

I hope that thus can be util for someone to handler in easy way the interrupt.

alla regards