26 Jun
2012
26 Jun
'12
3:15 p.m.
On 26 Jun 2012 at 16:44, David Riley wrote:
I might think a PIC32 would be a bit more efficient
(depending on the
ARM used); don't most MIPS architectures have a bit more horespower
than most ARM architectures? Mileage may vary, of course.
For me, it's the peripherals. "framed" SPI essentially gives you bit
stream capabilities with 32-bit DMA. The DMA channels also have a
CRC generator, if needed. Most inputs are 5V tolerant. 128KB of RAM
on-chip.
I'm not saying that there isn't an ARM out there with the same
capabilities, but I haven't seen one myself.
I don't see any issue with making this a software-only. Use one of
the SPIs to interface to a SDHC.
Why bother with an FPGA?
--Chuck