User Manual
GD32350R-EVAL
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5.15.
HDMI-CEC_HostSlaveCommunication
5.15.1.
DEMO Purpose
This Demo includes the following functions of GD32 MCU:
Learn the communication function of HDMI-CEC
In the process of communication, the sender sends data to receiver through the key
interrupt, the receiver for receiving data in the CEC interrupt. The entire communication
process does not make the error processing.
5.15.2.
DEMO Running Result
This routines need to prepare two GD32F350_EVAL board, one board as a sender, the
other as a receiver. First use the DuPont to connect CEC bus (PB8) and ground wire
(GND)
pins
in
the
two
board,
and
then
download
the
program
<15_HDMI_CEC_HostSlaveCommunication> to the board for running. When the
program runs, the first development board of the LCD display is data 0, press one of the
development board TAMPER key, the other piece of the development board LCD
number will increase, which shows the end of a data transmission. Each it increases to 9,
it will clear to 0 to re-increase; press the WAKEUP key, the number will decline, which
also shows the end of a data transmission. Every time it decreases to 0, it will return to
the number 9 to re-decrease.