[net2-wg] 600 pps, high throughput

[Joe Polastre]

> One issue is that the msp430 only provides three DMA channels, two of
> which would be required for full DMA support on the SPI. While, the
> DMA can be helpful for packet training optimizations it also limits
> their use for other potentially crucial tasks as sampling the ADC.

This is a theoretical concern and not a practical one.

one ADC/DAC and two SPI works just fine.  especially if you put
resource arbitration on the ADC/DAC dma channel.  Trust me, I know.

-Joe