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Problem on EDMA driver with McBsp on OMAP3530

Stephen Chan
Prodigy 20 points
Other Parts Discussed in Thread: TMS320C6455

I have question regarding the EDMA driver with the McBsp. My target platform is EVM3530 with Blackhawk JTAG emulator on CCS V3.3. The kernel is DSP/BIOS 5.33.05. The EDMA version is edma3_lld_01_10_00_01. I am using the DSP side of the OMAP only.

The driver call of EDMA3_DRV_setDestParams () on section 3.3.3.9 of EDMA3_Driver_user_Guide.pdf specify the destAddr must be in 32 bytes boundary mode. The McBsp DXR register, however, is not in 32 bytes boundary (e.g. McBsp2 DXR is at 0x49022008). Does it means the driver do not support data transfer from memory to McBsp?

Any insight is apprecaie.

Stephen