notes:flashcart:elcheaposdgb
Table of Contents
ElCheapo SD 2.x (GB/GBC) programming
Stub (only covers SPI bus for storage).
Registers
$0000 (RAM enable)
Write $09 to unlock other registers.
$3F00 (SPI read)
Returns the last read value from the SPI bus.
$3F01 (SPI write)
Write to send and receive a byte via the SPI bus from/to the SD card.
notes/flashcart/elcheaposdgb.txt · Last modified: 2024/09/21 09:50 by asie