PaulM's OMAP35x TX/RX DMA example issue

TieXue

Hi All,

When i tried PaulM 's tx/rx DMA example, i found the RXBUFF1/2/3 contents always equals to TXBUFF2, seems TXBUFF1 contents never send to RXBUFF1 or 2 or 3. does this is normal? i enabled the CHAN15 loop chain as following

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//dmaEnableChannel(CHAN14);

// For this example, disable the automatic linking of channel 15 to channel 14 so that it will be easier to set a breakpoint
// and view the changes to the RX buffers. Channel 14 will be enabled later as part of a continuious loop.

dmaSetChannelLink(CHAN15, CHAN14, EN_CHAN_LINK);
dmaEnableChannel(CHAN14);

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Thanks

over 12 years ago

0 TieXue over 12 years ago

Intellectual 495 points

Hi Administrator,

I dont think my post belong here, it is special for OMAP35x SDMA and MCBSP question, not belong to CCS, could you please move it back for me?

Thank you

0 Cvetolin Shulev-XID over 12 years ago

TI__Guru 65405 points

Hi TieXue,

Could you give some information about the PaulM's tx/rx DMA example which you mention. Where could be read about it? Could you post a link to read about this example and to become more familiar with the issue?

Tsvetolin Shulev

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PaulM's OMAP35x TX/RX DMA example issue