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Altera_Forum's avatar
Altera_Forum
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15 years ago

How to connect UART and DMA?

In the document "Embedded Peripherals IP", I find following paragraph: "The UART core's Avalon-MM interface optionally implements Avalon-MM transfers with flow control. Flow control allows an Aval...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

The problem is solved.I just change the destination address. Use (void *)(UART_Base+1)to replace destination_buff_ptr in the code "rc = alt_dma_txchan_ioctl(txchan, ALT_DMA_TX_ONLY_ON, destination_buff_ptr". But I don't understand why, because the register is 32 bit width.....