Hello i just recently got a 7" LCD screen that uses SPI. from a friend of mine. Everything works and all but there is a small problem. When this screen with this driver chip is connected nothing else on the SPI will work. This chip locks up the miso pin because it doesn't use a Tri-state. Not even sure what that means. So i been looking around and found out i can use this chip it is a 74ch125 chip which work like a switch i guess between the LCD driver chip and any other SPI device that you need for my project. I was wondering if anyone ran into this project and if the 74HC125 chip will actually work? Because I'm using the arduino m0 pro board and not like a Uno board. So I'm not sure what is the different between the boards on the SPI bus.
Joseph