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Discussion Groups | TMS320C54x | C5409 DMA configuration
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
C5409 DMA configuration - rk_appan - May 27 9:42:00 2004
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Hello All, I am using C5409 for a audio application. When I configure McBSP with CPU interrupts(XINT0,RIN0) I am able to play audio properly. I want DMA to be implemented for processing the audio data. I have configured both McBSP and DMA0(syncd on Transmit Event) and DMA1 (syncd receive event). Also I have configured both the DMA channels in multiframe, double word mode and enabled both channels interrupts. The configuration values are correct when I looked into the values of the Config structure. I am not getting both DMA0 interrupt and DMA1 interrupt. I dont know the reason for that. (IFR both the XINT and RINT bits are set) Also I am not clear on the INTOSEL bits in the DMPREC register. (c5409 datasheet doesnt mentioned abt XINT and RINT sharing on DMAC0, DMAC1) Help is appreciated. Thanks in Advance. -- Kans. |
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