• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 98 subscribers
  • Views 270 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.

How are Raster LCD interrupts triggered ?

Vaishak R
Intellectual 495 points

Hi,

I'm trying to run VPIFLCDLOOPBACK test code on starterware provided for evmomapl138 .

Only the VPIF interrupts are getting triggered correctly but not lcd raster interrupts ?

  • 0
    TI__Mastermind 35645 points

    Hi Vaishak,

    Thanks for your post.

    There are steps to debug the code if lcd raster interrupts are not triggered:

    1. Please ensure whether the LCDIsr  routine got registered to the vector table while you configure to setup the interrupt controller to generate interrupt.

    2. Check whether the system interrupt is mapped to appropriate DSP maskable interrupt for LCD

    3. Keep the breakpoint at RasterIntStatus() inside LCDIsr() call and check whether the raster interrupt occured or not and capture the value of status variable in the watch windos to track the status of raster interrupt.

    4. Also, ensure the raster configuration performed through SetUpLCD() call & debug the code through running step by step.

    Thanks & regards,

    Sivaraj K

    ------------------------------------------------------------------------------------------------------- 
    Please click the Verify Answer button on this post if it answers your question.
    -------------------------------------------------------------------------------------------------------