nonolith/CEE — Issue #33: move MCP4922 from USART to SPI?
Author: itdaniher
Created: 2012-01-09 22:39:33+00:00
State: open
Labels: cee

USART in synchronous mode was selected due to DMA capabilities, but CS control needs make DMA use not feasible.

The XMEGA's SPI peripheral can run 4x times faster than the USART peripheral, but not as fast as our DAC. Changing from USART to SPI would greatly reduce our timing constraints.