• State Resolved
  • Locked Locked
  • Replies 7 replies
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 797 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Edge GIO + Interruptión, issues!

Martin Valencia
Guru 15175 points
Other Parts Discussed in Thread: HALCOGEN

I want to change the mode of rising edge to falling edge, by programming in CCSv6, but I don't know function I should use, I searched in the "help of HalcoGen" but cannot find the famous function hehe; please help!

  • 0
    TI__Intellectual 1855 points

    Hi Martin,

    HALCoGen does not have a function to change the trigger edge at runtime. You have to configure the trigger statically in the GUI. If you want to change the trigger level in your program,  you can use the gioREG->POL register provided in HALCoGen gio.c  file. You can check the TRM (Section 22.3.2)for more details.

    Thanks and Regards,
    Vineeth

  • 0 in reply to Vineeth Thomas Alex
    Guru 15740 points

    Martin,

    This is the initial register setting in gio.c to have Rising Edge on GIOA[0] (all other pins falling)

       gioREG->POL = (uint32)((uint32)1U << 0U)   /* Bit 0 */
                | (uint32)((uint32)0U << 1U)   /* Bit 1 */
                | (uint32)((uint32)0U << 2U)   /* Bit 2 */
                | (uint32)((uint32)0U << 3U)   /* Bit 3 */
                | (uint32)((uint32)0U << 4U)   /* Bit 4 */
                | (uint32)((uint32)0U << 5U)   /* Bit 5 */
                | (uint32)((uint32)0U << 6U)   /* Bit 6 */
                | (uint32)((uint32)0U << 7U)   /* Bit 7 */
                | (uint32)((uint32)0U << 8U)   /* Bit 8  */
                | (uint32)((uint32)0U << 9U)   /* Bit 9  */
                | (uint32)((uint32)0U << 10U)  /* Bit 10 */
                | (uint32)((uint32)0U << 11U)  /* Bit 11 */
                | (uint32)((uint32)0U << 12U)  /* Bit 12 */
                | (uint32)((uint32)0U << 13U)  /* Bit 13 */
                | (uint32)((uint32)0U << 14U)  /* Bit 14 */
                | (uint32)((uint32)0U << 15U); /* Bit 15 */

    This is the register setting to have Falling Edge on GIOA[0] 

        /** - interrupt polarity */
    gioREG->POL = (uint32)((uint32)0U << 0U)   /* Bit 0 */
                | (uint32)((uint32)0U << 1U)   /* Bit 1 */
                | (uint32)((uint32)0U << 2U)   /* Bit 2 */
// ...

    So in your code, you will have to flip bit 0 of gioREG->POL to switch between rising and falling.

    Take care that you don't overwrite any other bit when flipping Bit0.

  • 0 in reply to Jan Cumps
    Guru 15175 points

    Thank you very much, I was successful in my program !,

    able to generate small firing pulses synchronized with the AC line of 60Hz, with interruptions only gio and rti, :-) sincerely thanks

    there any way to reduce code ?, much space!

  • 0 in reply to Vineeth Thomas Alex
    Guru 15175 points
    thank you very much for your help, I guess the team HalCoGen not think that one day was necessary to change this kind of programming stuff!
  • 0 in reply to Martin Valencia
    TI__Expert 6985 points
    Martin,

    You could use code like this to toggle between rising and falling edge interrupts:

    gioREG->POL ^= (uint32)((uint32)0U << XYZ) ; /* Bit XYZ */

    Best Regards,
    Christian
  • 0 in reply to Jan Cumps
    Guru 15175 points

    My goal:

    able to generate a control signal equal to the book to control motors and inductive loads, thanks to your help!

    thanks to this I have noticed that the Hercules has great flexibility in their HET ports, surprised me with only its internal modules can generate such a signal.

    Here are some pictures:

  • 0 in reply to Martin Valencia
    TI__Intellectual 1855 points
    Thanks for posting this, Martin. This will be very helpful to others.

    Regards,
    Vineeth