>Thanks for all the contributions you gave to my ideas. >I will try to follow the idea of use a PIC to do the job. >My second choice is to use a Parallel to serial conversor. >Rodrigo Real Note to all: He has a piece of lab equipment that outputs parallel data. End of story. No pdf readers running on his voltmeter, etc. 1. You tried to read the data by polling the strobe bit. Yes, it is too fast to "catch". 2. Whatever you used to catch the data (a PC?) may have a feature that lets you program the input strobe bit to "latch", rather than trying catch it as a transparent read. You could also use interrupts but I'll bet you want to avoid that, for simplicity. 3. You could use a PIC, but you actually have to solve the same problem. You must either "latch" that strobe input, or make it interrupt the PIC. 4. The simplest solution is a piece of hardware on the strobe line to either stretch the pulse or latch the data entirely, as Peter described. It would take one chip. 5. Note that if you build a serial converter you will _still_ have to solve the "short strobe" problem. And once you do, converting it to serial really isn't necessary. Barry -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics