CodeMercs Forum

Problem as described in my first posting here is finally solved. In the end it was simple, I just didn't expected it was needed. You may be curious now..? :?: OK, I just put a open collector driver (BC547 with serial R 27k in base, emitter to ground, coll. to the MISO) between the HC165 QH serial ou...

Dear readers, I'm quite new to both the IOW24 and the SPI protokol and facing some problems. :cry: Expanding "TTL" outputs using a 74HC595 controlled by the IOW24 SPI is working fine. Next step was using a 74HC165 for TTL input via SPI. Setting the inputs on the HC165 to the binary repres....