20 Jul
2011
20 Jul
'11
3:15 p.m.
Dear Valentin Longchamp,
In message 4E26CAD9.3090204@keymile.com you wrote:
We are currently planning to move away from I2C EEPROM for environment (for future hardware), but what would you advise me to do for our current hardware where the environment is in this EEPROM ?
This depends on the specific features of your hardware.2s
Eventually you can increase the I2C clock.
Or use a h/w I2C driver instead of the soft-I2C driver.
Eventually you have plenty of memory that is available early (say, several MB of L2 cache or so :-) and you can read the whole environment into "RAM" in one rush.
Except for that there is little we can do. I2C is a PITA, also reliability-wise.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
I'm a soldier, not a diplomat. I can only tell the truth.
-- Kirk, "Errand of Mercy", stardate 3198.9