SPI works MOSI - does nothing MISO! HELP! | Cypress Semiconductor
SPI works MOSI - does nothing MISO! HELP!
I have a CY6936 connected to an Atmel AVR device... I've confirmed the SCK and MOSI is working and that the 6936 is getting the data as I've changed the Xout to 750K from it's default of 12M. But when I try to read a register the MISO never changes - it remains at a high. I can see 2 streams of SCK - one telling it to read register 3 (for example) and one there to clock it in... The pin on the micro is programmed as an input and it has a weak pull-up... nothing ever on MISO.