DMA_DAC Problem

[sanjib]

Posted on June 09, 2014 at 06:07

I am updating the tim2 arr by DMA ...with the update of timer 2 DAC  will get triggered. I have checked the DAC o/p with CRO by it's corresponding pin and I am able to see the Sine wave but the problem is it is not entering into the DMA1_Stream5_IRQHandler.....Can any body say me why is it so?

I have attache the file..................

[Tesla DeLorean]

Posted on June 09, 2014 at 06:42

void DMA1_Stream5_IRQHandler(void)

{ if(DMA_GetITStatus(DMA1_Stream5, DMA_IT_HTIF0)) { /** * Clear DMA Stream Half Transfer interrupt pending bit **/ DMA_ClearITPendingBit(DMA1_Stream5, DMA_IT_HTIF0); } if(DMA_GetITStatus(DMA1_Stream5, DMA_IT_TCIF0)) { /** * Clear DMA Stream Total Transfer complete interrupt pending bit **/ DMA_ClearITPendingBit(DMA1_Stream5, DMA_IT_TCIF0); STM_EVAL_LEDToggle(LED3); } } So FIVE and not ZERO - DMA_IT_HTIF0 etc

[sanjib]

Posted on June 09, 2014 at 08:20

I didn't understand I am doing the same right ...the same what you are writing

[sanjib]

Posted on June 09, 2014 at 08:21

Thanks Ok I got that

[sanjib]

Posted on June 10, 2014 at 14:26

Hi all In my below code which is attached It is entering into the DMA1_Stream5_IRQHandler in case 0 but not in case 1 and case 3 can anybody say me why?

________________ Attachments : the_recent_one.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I02d&d=%2Fa%2F0X0000000bSf%2FYdmW7.DNX3ZOGcPczlM7SrTWEH6rpqR_2QRIKFFRgvE&asPdf=false