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C5505 LCD problem

Hello,

I modified the LCD example (VC5505_CSL\CCS_v3.3_Examples\lcd\example1\) to work under DSP/BIOS. Then I used a PRD task which updates the display 20-30 times per second with data and this works OK.

A problem arises when I have some SWI interrupt(s) enabled, the display freezes and I have to reinitialize it in order to start working again. My guess is that the SWI interrupt activates during the transfer of data towards the LCD and after that LCD just stops responding.

What would be the best solution in this case. I need both the realtime display of data and also other interrupts executing in the background?

 

Thank you.