Interrupts Crossworks

[morphiq]

Posted on March 05, 2008 at 21:27

Interrupts Crossworks

[morphiq]

Posted on May 17, 2011 at 09:50

Hi

I have problem to make any interrupt to work.

I tried many sample codes, but none of them work.

CODE for external interrupt P3.2

SCU_APBPeriphReset(__VIC, DISABLE);

SCU_APBPeriphReset(__WIU, DISABLE);

SCU_APBPeriphReset(__GPIO3, DISABLE);

SCU_APBPeriphReset(__RTC, DISABLE);

SCU_AHBPeriphClockConfig(__VIC, ENABLE);

SCU_APBPeriphClockConfig(__WIU, ENABLE);

SCU_APBPeriphClockConfig(__GPIO3, ENABLE);

SCU_APBPeriphClockConfig(__RTC, ENABLE);

WIU_DeInit();

WIU_InitTypeDef WIU_InitStructure;

WIU_Cmd(ENABLE );

WIU_ClearITPendingBit(WIU_Line26);

WIU_StructInit(&WIU_InitStructure);

WIU_InitStructure.WIU_Line = WIU_Line26 ;

WIU_InitStructure.WIU_TriggerEdge = WIU_FallingEdge ;

WIU_Init(&WIU_InitStructure);

// Select WIU line 26 as VIC1.10 interrupt source

SCU_WakeUpLineConfig(26);

VIC_DeInit();

// Initialize VICs Default vector address registers

VIC_InitDefaultVectors();

// Configure the External interrupt group 0 priority

VIC_Config(EXTIT0_ITLine, VIC_IRQ, 0);

// Enable the External interrupt group 0

VIC_ITCmd(EXTIT0_ITLine, ENABLE);

//#################### BUTTONS ####################

// Configure PORT3 lines in Input Push-Pull mode

GPIO_DeInit(GPIO3);

GPIO_StructInit(&GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;

GPIO_InitStructure.GPIO_Direction = GPIO_PinInput;

GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;

GPIO_Init(GPIO3, &GPIO_InitStructure);

//buttons normally HIGH

########################################################

Another example for RTC:

RTC_DeInit();

RTC_PeriodicIntConfig(RTC_Per_2Hz);

RTC_TamperCmd(DISABLE);

RTC_AlarmCmd(DISABLE);

RTC_ITConfig(RTC_IT_Per, ENABLE);

RTC_ITConfig(RTC_IT_Alarm, DISABLE);

RTC_ITConfig(RTC_IT_Tamper, DISABLE);

RTC_ClearFlag(RTC_FLAG_Per|RTC_FLAG_Per|RTC_FLAG_Tamper);

VIC_DeInit();

VIC_Config(RTC_ITLine, VIC_IRQ, 1);

VIC_ITCmd(RTC_ITLine, ENABLE);

/////////////

The same with Timers....

No IRQHandler() is called... for any source!

This is a part of bigger project...

Maybe I forgot about some configuration or there is special action needed in CrossWorks...

Has anybody some examples working with CrossWorks 1.7

Sorry for english

[morphiq]

Posted on May 17, 2011 at 09:50

I found solution...

__ARMLIB_enableIRQ(); // Enable gloabal Interrupts

Thats what I missed... It wasn't explained anywhere!

Now it works :D