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| -rw-r--r-- | i2c/edid/README | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/i2c/edid/README b/i2c/edid/README index 8c9ec32..52bcae9 100644 --- a/i2c/edid/README +++ b/i2c/edid/README @@ -1,3 +1,7 @@ +------------------------------------------------------------------------------- +EDID +------------------------------------------------------------------------------- + The captures in this directory were taken from a VGA cable, connected to various displays, as the EDID data was sent across the I2C bus. @@ -5,3 +9,29 @@ To decode these, set up a protocol decoder stack like this: i2c -> ddc -> edid +Details: +https://en.wikipedia.org/wiki/Extended_display_identification_data +https://en.wikipedia.org/wiki/Display_Data_Channel + + +samsung_le46b620r3p.sr / samsung_syncmaster245b.sr +-------------------------------------------------- + +The logic analyzer used was a Saleae Logic at 500kHz: + + Probe I2C pins + -------------------- + 1 (black) SDA + 2 (brown) SCL + + +samsung_syncmaster203b.sr +------------------------- + +The logic analyzer used was a Saleae Logic at 1MHz: + + Probe I2C pins + -------------------- + 1 (black) SCL + 2 (brown) SDA + |