15 Dec
2017
15 Dec
'17
9:35 p.m.
On 12/15/2017 08:09 PM, Brian L. Stuart via cctalk wrote:
I'd have to go back and look at the details to see
how fast it was actually
running. Somewhere in the back of my mind, I had to back off a little
bit on what the hardware could do because something on the software
side couldn't take it that fast.
I've lately been doing the data transfer stuff using STM32F407
development boards. Cheap ($12 shipped), with a 168MHz ARM CPU and
84Mhz peripheral clocks with multichannel DMA to 192K RAM. Lots of fast
5V tolerant GPIO.
In my case, I use the SDIO facility (4 wire) to an SDHC, with Chan's
FATFS filesystem code. Do all your imaging to SDHC (a 16 or 32GB card
should image a lot of RL02s) and then read the card on a PC platform.
Simple, fast and cheap. If you need UARTs, they're on the chip as well
and can run stupid-fast.
Welcome to the 21st century.
Cheers,
Chuck