Hardware Connection; Table 3. Stm32F100Xx And Hdmi-Cec Connection; Figure 14. Example Of A Hardware Connection - ST STM32F100 Series Application Note

Hardware environment
2.2

Hardware connection

To run the CEC demonstration, you have to connect the HDMI connector of the Value line
evaluation board (STM32F100B-EVAL or STM32F100E-EVAL) to another HDMI device (TV,
recording device, etc.) using the HDMI cable (see

Figure 14. Example of a hardware connection

Note: You can connect the Value line evaluation board to other Value line evaluation boards using
HDMI cables, or a simple wire between all CEC device lines (PB8). If you choose the
second solution, do not forget to connect the grounds of all the boards together.
Table 3.
HDMI-CEC pins
CEC line pin
CEC_I2C_SCL
CEC_I2C_SDA
CEC_HPD_PIN
22/36
STM32F100xx and HDMI-CEC connection
STM32100B-
EVAL
PB8
PB10
PB11
PB12
Doc ID 16896 Rev 2
Figure 10)
STM32100E-
Configuration
EVAL
PB8 Output open drain
PB6 Output open drain
PB7 Output open drain
PB9 Output push pull
AN3127
Remap
PB10