Hello to anyone!
I'm designing SD host controller core and I have some question to someone who known about it. I've made SD controller with 1 bit data line and I want to make 4 bit data line interface with SD, but all the same after sending to SD Card ACMD6, data received by 1 wire.
I'm doing next:
(wait for 90 clock) -> CMD0 -> CMD55 -> ACMD41 (with repeate) -> CMD2
-> CMD3 -> -> CMD7 (with RCA) -> ACMD6 (4 bit) -> CMD17
One date line mode does work but 4 data line doesn't work.