My Dear Sir,
We are interested in the device which can convert USB to local bus. The local bus is 16 bit wide, do you have device to support the following configuration:
-------------------- | | ==> Address Bus 20 bits USB | USB to Local Bus | Data Bus 16 bits | | Control Bus --------------------
Can you suggest any particular device(s) part number and associated RDK.
With regards.
B. Jaipal Reddy
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Yes. Just about any microcontroller with USB will do the job. My current favorite is the STM32. I've successfully used the IAR Embedded Workbench on that device.
JJS
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ss Bus 20 bits
rol Bus
.rrent
ch on
Yes, any single chip USB micro will do. But with 36+ I/Os, it will have to be a big chip. You can use a small USB chip and one or more CPLD for demultiplexing. We are planning on Atmega32u2 + XC9536XL(s) for our project.
s Bus 20 bits
ol Bus
FTDI ft2232 (and probably a few others from them) has a mode where it acts like a 8051 microcontroller bus
Netchip (now part of PLX) has a couple of parts that do USB-local bus
you could probably use a USB-PATA converter if you could live with only 3 address lines
cypress makes some chips they call 'west bridge' chips
a google search for 'usb local bus' returned several other hits (hint hint)
jaipal skrev:
An AT32UC3A3xxx would do this, using High Speed USB.
-- Best Regards Ulf Samuelsson These are my own personal opinions, which may or may not be shared by my employer Atmel Nordic AB
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