• State Not Answered
  • Locked Locked
  • Replies 6 replies
  • Subscribers 21 subscribers
  • Views 1418 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

anybody is there who works on MCBSTR9 Evaluation Board

RajaRao Malkari

hai,
anybody is there who works on MCBSTR9 Evaluation Board.

thanks
raj.

Parents
  • 0 in reply to N. P.

    OK I finally got it.

    Here is the solution:

    //P3 configuration

    SCU->GPIOOUT[3] &= 0xC3FF;
    GPIO3->DDR &= 0x9F;

    //WIU (AND SCU!!!) configuration
    //Hey, I didn't did this before!!!!

    SCU->PCGR1 |= 0x00002000;
    SCU->PRR1 |= 0x00002000;

    WIU->MR |= ~0x00000003;
    WIU->CTRL |= 0x00000002;

    SCU->WKUPSEL |= 0x00000005;

    //VIC configuration

    VIC1->VAiR[10] = (unsigned int)Switch_IRQ_Handler;
    VIC1->VCiR[10] |= 0x20;
    VIC1->VCiR[10] |= 10;
    VIC1->INTER |= (1<<10);

    And that's all to generate external interrupt by S2 (or other WIU sources).

    Don't forget to acknowledge the interrupt in handler function and to clear EXTINT5 bit (WIU->PR |= 0x00000020;)

    You can also work with ST librarys if you don't like to work at bit level. They got smart functions that do it for you.

    Bye!

Reply
  • 0 in reply to N. P.

    OK I finally got it.

    Here is the solution:

    //P3 configuration

    SCU->GPIOOUT[3] &= 0xC3FF;
    GPIO3->DDR &= 0x9F;

    //WIU (AND SCU!!!) configuration
    //Hey, I didn't did this before!!!!

    SCU->PCGR1 |= 0x00002000;
    SCU->PRR1 |= 0x00002000;

    WIU->MR |= ~0x00000003;
    WIU->CTRL |= 0x00000002;

    SCU->WKUPSEL |= 0x00000005;

    //VIC configuration

    VIC1->VAiR[10] = (unsigned int)Switch_IRQ_Handler;
    VIC1->VCiR[10] |= 0x20;
    VIC1->VCiR[10] |= 10;
    VIC1->INTER |= (1<<10);

    And that's all to generate external interrupt by S2 (or other WIU sources).

    Don't forget to acknowledge the interrupt in handler function and to clear EXTINT5 bit (WIU->PR |= 0x00000020;)

    You can also work with ST librarys if you don't like to work at bit level. They got smart functions that do it for you.

    Bye!

Children
No data