configure GPT(genral puropose timer0) in its interrupt mode over the c5515 demo code ,howver i failed

Kieran Yu

1541.project.rar i'm trying to configure timer0 in the interrupt mode based on the c5515 demo code, i want timer0 to generate 40KHz square wave output from the GPIO13, working well with the DMA_I2S interrupt, however, i failed to configure the timer0 interrupt alone, even i masked the DMA interrupt enable, and i check it over and over, don't find the code problem location, and i think i fall in stereotyped thinking pattern. can someone help me have a look?

thanks

over 14 years ago

0 Nelson Vazquez over 14 years ago

TI__Prodigy 310 points

Hi,

Do you still need support with this? Which device and board are you using?

0 Kieran Yu over 14 years ago in reply to Nelson Vazquez

Intellectual 525 points

i figure out it ,now the timer0 interrupt and the DMA interrrupt can work at the same time. however, i find that the DMA interrupt and timer0 interrupt has interfere with each other . so the output square wave frequency is unstable . and also , during my debug, i set a breakpoint in the main function, when i run directly to the breakpoint, i check the DMA receive buffer array, it's empty for the front decades of the buffer array. however, if i step over to the breakpoint, i receive buffer array is fully filled with sampled data.

0 Kieran Yu over 14 years ago in reply to Kieran Yu

Intellectual 525 points

by the way, the VC5505 Audio filter demo code , does ti has the version using CSL function ?

regards

0 Steve Tsang over 14 years ago in reply to Kieran Yu

TI__Mastermind 23785 points

No, we don't.

Regards.

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configure GPT(genral puropose timer0) in its interrupt mode over the c5515 demo code ,howver i failed