dm814x edma3 problem

guoliang zhu

Hi;

Now I transplant the C6748 startware mcasp code to dm814x; all work fine,but the edma3

The hardware edma interrupt always tiger 3000 or more times only,but after ,it stop,no interrupt generate any more

The edma set AB sync and INCR mode (dam=sam=0);

for INCR mode,Source addressing and Destination addressing will increasing;but when it no more need increase,how to begin from the begging?

0 Shankari G over 11 years ago

Hi Guoliang,

Moving your post to DM814x and AM387x Processors Forum

Regards,

Shankari

0 Pavel Botev over 11 years ago

Hi Guoliang,

Please refer to the below links for information regarding the EDMA usage and examples:

http://processors.wiki.ti.com/index.php/TI81XX_PSP_EDMA_Driver_User_Guide

http://processors.wiki.ti.com/index.php/EDMA_sample_test_application

DM814x TRM, ch8 EDMA, sections 8.5 EDMA Transfer Examples, 8.7 Appendix A

Best Regards,
Pavel

Processors forum