mirror of
https://github.com/sanni/cartreader.git
synced 2024-12-26 04:51:52 +01:00
Adjust clk count for unlocking MMC
This commit is contained in:
parent
7f5088cc2a
commit
1fc7bb27e9
@ -58,11 +58,11 @@ static boolean wsWitch = false;
|
||||
|
||||
void setup_WS()
|
||||
{
|
||||
// A0 - A7
|
||||
// A-1 - A6
|
||||
DDRF = 0xff;
|
||||
// A8 - A15
|
||||
// A7 - A14
|
||||
DDRK = 0xff;
|
||||
// A16 - A23
|
||||
// A15 - A22
|
||||
DDRL = 0xff;
|
||||
|
||||
// D0 - D15
|
||||
@ -1159,8 +1159,6 @@ void generateEepromInstruction_WS(uint8_t *instruction, uint8_t opcode, uint16_t
|
||||
// All signals' timing are analyzed by using LogicAnalyzer
|
||||
boolean unlockMMC2003_WS()
|
||||
{
|
||||
dataOut_WS();
|
||||
|
||||
// initialize all control pin state
|
||||
// RST(PH0) and CLK(PE3) to LOW
|
||||
// CART(PH3) MMC(PH4) WE(PH5) OE(PH6) to HIGH
|
||||
@ -1171,24 +1169,21 @@ boolean unlockMMC2003_WS()
|
||||
// switch RST(PH0) to HIGH
|
||||
PORTH |= (1 << 0);
|
||||
|
||||
// data = 0x00ff
|
||||
PORTC = 0xff;
|
||||
PORTA = 0x00;
|
||||
|
||||
PORTF = 0x0a;
|
||||
PORTL = 0x05;
|
||||
pulseCLK_WS(5);
|
||||
pulseCLK_WS(3);
|
||||
|
||||
PORTF = 0x05;
|
||||
PORTL = 0x0a;
|
||||
pulseCLK_WS(4);
|
||||
|
||||
// MMC is outputing something on IO? pin synchronized with CLK
|
||||
// so still need to pulse CLK until everything is ok
|
||||
pulseCLK_WS(19);
|
||||
// so still need to pulse CLK until MMC is ok to work
|
||||
pulseCLK_WS(18);
|
||||
|
||||
// unlock procedure finished
|
||||
// see if we can set bank number to MMC
|
||||
dataOut_WS();
|
||||
writeByte_WSPort(0xc2, 0xaa);
|
||||
writeByte_WSPort(0xc3, 0x55);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user