hcn1@sphinx.uchicago.edu (howard charles nusbaum) (07/13/87)
We are trying to use the Macintosh to collect responses from subjects in psychology experiments. We are interested in measuring the speed of these responses with millisecond accuracy. I know that there was an article published in a journal that described using the VIA chip timer 1 for this purpose, but it was to be called from BASIC and we can't get it to work from C. I have 2 questions: 1. Where can we get a copy of Synertek's documentation for the 6522 chip? 2. Has anybody already written a C-callable (MPW C) msec accurate timer routing? If so, how can we get the code? Thanks for your assistance. Howard Nusbaum 5848 South University Ave. The University of Chicago Chicago, IL 60637 (312) 702-6468