4484d04a8d
This commit adds RX DMA support to serial driver. The DMA is currently supported only for USART peripherals, not for UART. It uses two circular buffers which size can be setup by SAMV7_SERIAL_RXDMA_BUFFER option. The idle bus interrupt is enabled to ensures data are read even if the buffer is not yet full. The timeout can be setup by SAMV7_SERIAL_DMA_TIMEOUT option. This adds support only for RX transfers. Signed-off-by: Michal Lenc <michallenc@seznam.cz> |
||
|---|---|---|
| .. | ||
| include | ||
| src | ||
| Kconfig | ||