How about using UBB to extend a SPI ADC
Werner Almesberger
werner at almesberger.net
Sat Apr 9 06:44:50 EDT 2011
Jianming Liu wrote:
> Meanwhile, the TF interface MSC1_Dx in jz4755
> is multiplexed with SSI (including SPI), i.e.
Ah, nice. And the 4760 has the same. Even better.
> Does this mean that we have to simulate the SPI using GPIOs in Ben+UBB,
> meanwhile there is SPI controller available in jz4755?
Yup. However, note that, if you make your own board, you don't need
to implement the CPU-MMC-UBB-ADC chain anyway. If your board will
always use that ADC, you'd just wire it up to whichever SPI
interface is convenient for you.
- Werner
More information about the discussion
mailing list