notes:flashcart:mkr6
Table of Contents
NeoFlash MK6/R6 (NDS) programming
SPI commands
Read response (9F FF FF FF)
Responds with a dummy byte, then three response bytes.
Lock? (FE FD FB F5)
Unlock? (FE FD FB F7)
Mode: accelerometer (DS Motion Card) (FE FD FB F8)
Mode: 4kbit EEPROM (FE FD FB F9)
Mode: 512kbit EEPROM (FE FD FB FA)
Mode: 2/4/8mbit FLASH (FE FD FB FB)
TODO: Responds with 20 80 14?
ROM commands
Set card chip ID? (B9 01 00 00 dd cc bb aa)
Set card chip ID to aa bb cc dd.
? (D7 50 ?? 00 00 00 00 00)
Part of the TF card initialization process? ?? is 00 or 80 - maybe controls TF card reset?
TF: Write command byte (D7 57 xx 00 00 00 00 00)
TF: Read command bits (D7 6x 00 00 00 00 00 00)
- 66: Read 1 bit
- 67: Read 2 bits
- 68: Read 3 bits
- 69: Read 4 bits
TF: Read data, 1024 x 4 bits (D7 4E 00 00 00 00 00 00)
Returns 1024 bytes; each byte has bits 0-3 set to the 4 bits read.
TF: Write data, 4 bits (D7 38 0x 00 00 00 00 00)
Read halfword (F1 tt aa aa aa aa 00 00)
- tt: target (00 - SRAM, 01 - NOR)
Returns 2 bytes, little endian.
Write halfword (F3 0t aa aa aa aa dd dd)
- tt: target (00 - SRAM, 01 - NOR)
aa and dd are specified in reverse endianness.
notes/flashcart/mkr6.txt · Last modified: 2024/11/11 12:40 by asie