On 22.12.2008 15:13, Joseph Smith wrote:
On Mon, 22 Dec 2008 19:45:00 +0800, "FENG Yu Ning" fengyuning1984@gmail.com wrote:
There are lots of flash programmer out there, but none of them (those I know about) fits my requirement well.
I would like a programmer to be:
- able to program SPI flash chips,
- not slow (program 512k bytes in 3 mins),
- with a driver whose source code is available (or not difficult to
write
one),
- simple, and
- cheap.
There is one that almost does the job,
http://www.malinov.com/Home/sergeys-projects/spi-flash-programmer
but [0] would it be very slow?
Recently I find a chip FT2232x
http://www.ftdichip.com/Products/FT2232C.htm
It seems that the chip's IO could be configured to work in bit-bang mode and thus able to implement as an SPI I/F.
[1] I think it is easy to build a prototype programmer using this chip.
Is
it? [2] Is the programmer going to meet my requirement?
Wow, If that can be used for SPI than the Paraflasher can definitely be used for SPI. It would just require software to support it :-)
The FT2232D can speak SPI directly, no need for bitbanging.
Regards, Carl-Daniel