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Discussion Groups | TMS320C54x | Configuring DMA to trasmit 8bit element through McBSP
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).
Configuring DMA to trasmit 8bit element through McBSP - pitistef - Feb 24 10:52:00 2004
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Hello, I'm actually facing a problem : I would like to transmit frames of variable lengths made of 8 bit elements, using both McBSP and DMA. I don't know exactly how to configure DMA and McBSP. I use the McBSP event to synchronize DMA transfer but I don't know if I have to configure McBSP in Dual-Phase (8/8) or Single Phase (8 but I suppose there will be a problem with th DMA, won't it?). What do I set for the DMCTR (size of the frame in 8 bits or in 16 bits?) I'm quite new in DSP programming and have only an eval version of Code Composer Studio (which don't permit simulation of DMA and McBSP), so I can't test solutions for the moment (I'm waiting for complete version of the tool, but I have to go through my quite slow society administration...) Thanks for your answers |
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