On 16 Jun 2007 at 10:23, Peter P. wrote: > Even at 500kHz data must move 'into' the PIC every 2usec. This is fairly fast > esp. if it needs to be de-serialized (not necessarily 8 bits wide - I do not > remember the width of sector marks and start sequences on floppies) and then > written into SRAM. > Use an Atmel AVR running at 20MHz. It can execute almost 40 instructions in 2uS. Mark Jordan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist