Editing Talk:SC EEPROM
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| Latest revision | Your text | ||
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There is a flag at EEPROM which enables a special diagnostic mode at startup.<br> | |||
Note: This flag is enabled on Proto/DECR. It allows memtest diagnose<br> | |||
There is a | |||
Pseudo-code: | Pseudo-code: | ||
< | <pre> | ||
def check_bootrom_diag_mode(mode, param) | def check_bootrom_diag_mode(mode, param) | ||
diag_mode = get_eeprom_bootrom_diag() | diag_mode = get_eeprom_bootrom_diag() | ||
| Line 16: | Line 14: | ||
param = -1 | param = -1 | ||
return 1 | return 1 | ||
</ | </pre> | ||
== EEPROM Dumps == | ==EEPROM Dumps== | ||
* https://mega.co.nz/#!Bk1ESBZT!pqAB6riHhZSCPAftvjm2MFf3j0It61huT3WT2AbWS-A | * https://mega.co.nz/#!Bk1ESBZT!pqAB6riHhZSCPAftvjm2MFf3j0It61huT3WT2AbWS-A | ||
== EEPROM Strings (CP memory dump, DECR) == | ==EEPROM Strings (CP memory dump, DECR) == | ||
http://pastie.org/private/usd2zi8mw3igycsh1a395q | http://pastie.org/private/usd2zi8mw3igycsh1a395q | ||
== Bus Pirate stuff == | ==Bus Pirate stuff== | ||
http://i.imgur.com/48rbR51.png | |||
(needs more wikifying) | (needs more wikifying) | ||
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== On standby == | == On standby == | ||
* Note: during this time the plaintext | * Note: during this time the plaintext eprom is never read even once! | ||
* Additionally, the areas 0x26B0, 0x26D0 are not read | * Additionally, the areas 0x26B0, 0x26D0 are not read | ||
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* Reads 0x2E0 (0x20) | * Reads 0x2E0 (0x20) | ||
* Writes some stuff to 0x2C0/0x2E0/0x2A0 (mostly ff's) | * Writes some stuff to 0x2C0/0x2E0/0x2A0 (mostly ff's) | ||
* Reads 0x2700 (0x10) | * Reads 0x2700 (0x10) | ||