PULSE problems on UBW32

Author	Message
ernie Newbie Joined: 18/03/2012 Location: Australia Posts: 14	Posted: 05:34am 21 Mar 2012       From the MMBASIC 3.1 manual:   Quote   PULSE pin, width Will generate a pulse on 'pin' with duration of 'width' mS. 'width' can be a fraction. For example, 0.01 is equal to 10 μS This enables the generation of very narrow pulses. The generated pulse is of the opposite polarity to the state of the I/O pin when the command is executed. For example, if the output is set high the PULSE command will generate a negative going pulse. Notes: For a pulse of less than 1 mS the accuracy is ± 1 μS. For a pulse of 1 mS or more the accuracy is ± 0.5 mS. A pulse of more than 1 mS will run in the background. 'pin' must be configured as an output. So if the pulse is 1ms or more, the accuracy drops to ± 0.5 mS as it runs in the background. That may be your problem. Try some pulses less than 1mS and see how accurate it is. Edited by ernie 2012-03-22