moving data between sdram and sram on C6745 using edma

Hi,

Where can I find some working example codes that  moving data between sdram and sram on C6745/7 using edma? I tried the example that comes with

• edma3_lld_01_06_00_01\examples\edma3_driver\evm6747
• edma3_lld_01_10_00_01\examples\edma3_driver\evm6747

All the tests would hang on EDMA3_DRV_requestChannel calls. For example, at Line 103 of edma3_lld_01_06_00_01\examples\edma3_driver\src\qdma_test.c

I am using a C6745 custom board. The Uart edma example comes with BIOSPSP works fine though, at least get passed the EDMA3_DRV_requestChannel call.

Thanks