Auvidea 38339 Series, Техническое справочное руководство

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VERSION 0.9 X220 (38339-X)
HDMI (J7)
This is a 19 pin standard size HDMI connector.
UART 1/2 (J14)
This is a 6 pin connector with 1.25 mm pitch. Please connect to USB TTL serial converter (3.3V TTL level).
Normally just connect TXD, RXD, and GND. Swap data lines. Default speed: 115200 bps.
UART1 is optionally tunnelled through the micro controller (MCU). Default: hardware bypass.
Pin Function Description
1 HDMI_D HDMI data lane 0
2 GND Ground
3 HDMI_DP2_TXD0- HDMI data lane 0
4 HDMI_D HDMI data lane 1
5 GND Ground
6 HDMI_DP2_TXD1- HDMI data lane 1
7 HDMI_D HDMI data lane 2
8 GND Ground
9 HDMI_DP2_TXD2- HDMI data lane 2
10 HDMI_D HDMI data lane 3
11 GND Ground
12 HDMI_DP2_TXD3- HDMI data lane 3
13 HDMI_CEC
14 RSVD reserved pin
15 DP1_
16 DP1_AUX_CH2-
17 GND Ground
18 PWR 5V power (max. 500 mA)
19 HPD inverted and connected to DP1_HPD
Pin Function GPIO Description
1 5V - 5V power output
2 UART1_TXD - UART 1 console port (3.3V TTL level): transmit data output
3 UART1_RXD - UART 1 console port (3.3V TTL level): receive data input
4 UART2_TXD/
SWCLK
- UART 2 console port (3.3V TTL level): transmit data output / SWCLK
(to flash the MCU)
5 UART2_RXD /
SWDIO
- UART 2 console port (3.3V TTL level): receive data input / SWDIO
6 GND - Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 9