Difference between revisions of "Developer Manual/I2C"
From coreboot
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* sensors-detect (lm-sensors) | * sensors-detect (lm-sensors) | ||
| − | * i2cdetect | + | * i2cdetect (i2c-tools) |
| − | * i2cdump | + | * i2cdump (i2c-tools) |
Using this tools on a normal bios on the motherboard its easy to identify the appropriate address for the SPD data. | Using this tools on a normal bios on the motherboard its easy to identify the appropriate address for the SPD data. | ||
Latest revision as of 11:26, 11 April 2011
[edit] Introduction
SMBUS and I2C are closely related buses. The SPD (Serial Presence Detect) of the DIMM's are I2C devices that need to be read during Developer Manual/RAM init.
For characterizing I2C on a unsupported motherboard I used the following tools:
- sensors-detect (lm-sensors)
- i2cdetect (i2c-tools)
- i2cdump (i2c-tools)
Using this tools on a normal bios on the motherboard its easy to identify the appropriate address for the SPD data.
