need to add a USB interface to an existing microprocessor to make it a slave USB device, receiving byte code commands, and sending digitized data arrays.
Is there an off-the-shelf module available for that? e.g. that would convert USB to SPI or bidirectional parallel etc?
Take a look at FTDI:
If...I picked you fine....I'll be sending form the USART which will be converted into USB....but what about the data speed??
You can buy a USB RS232 serial cable for cheap (like $10-$15 US retail)
Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
see
a écrit dans le message de news: snipped-for-privacy@g14g2000cwa.googlegroups.com...
We've had good success with the parallel I/O FTDI FT245BM. They also have serial chips. Here are some DIP modules if you don't want to deal with SMD:
So far I haven't found any USB 2.0 high-speed chips like this so if you need maximum throughput you might have to go a different route.
Andrew
Indeed. Some of their little modules will, as Spehro suggested, convert the USB to serial but they also do a range that provides a set of parallel lines, which may be more useful.
Whatever you set up at the PC end.
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.