i have made my own programmer using 74hc373 latch for control signals and one transistor for changing between programming voltage and reading voltage; for programming the at89c2051. could someone suggest me how to create exact time delays( between 1 micro-second to 110 micro second) for the negative going programming pulse on P3.2. i have connected a separate control signal(pin 1 strobe) from the parallel port for that.
also could someone suggest some sorce code examples in C not pascal.