Hi Luke,
Le Tue, 14 Mar 2017 07:32:17 +0000 Luke Kenneth Casson Leighton lkcl@lkcl.net a écrit:
sorry albert just checked the schematics and also watterott's HDMI_Display schematic - it's HDMI DDC that the STM32F072 needs to emulate! but looking at the watterott schematics that's just an EEPROM (again).
l.
OK, I'm lost :) and not really familiar with the passthrough card so let me try to find my bearings back; just stop me when I'm wrong. The goal is that the passthrough card advertise on its HDMI connector's I2C the display capabilities of the microdesktop it is slotted into. Correct?
So at the interface level, it should behave as an I2C slave EEPROM wrt DDC_SDA and DDC_SCL (that's I2C1 on the STM32) and as an I2C master wrt the EOM68 connector's I2C. Right?
Now, what I am not sure about yet is whether there are any conversion to be made between the I2C data read from the microdesktop(s I2C and the data to be provided on the HDMI DCC IC2.
Amicalement,