I haven't tried this, but many USB-RS232 convertors will run a higher than normal speeds. Also, there are USB-Parallel chips that might work. 1MB is a fair chunk of data though, I wouldn't expect it to travel in an instant. I2C might work, but I think it will end up harder on the PC side. Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams On Mon, 21 Feb 2005 16:07:07 +0100, Palmed GmbH wrote: > Hello, Picers, > > with a new project I have the problem that I have to transfer 1MB of data > from a PC to a PIC based device, the data have to be stored in a SRAM. > > Up to now I only worked with RS-232 at 9600 Baud, but this would result in > endless transmission times. > > Has anybody ever realized a fast transmission to a PIC? > > I know about the very fast USB, but when using a USB to RS232 converter I > would bring down the speed to RS232 level. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist