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NEC MPI4E User Manual
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NEC MPI4E RaspberryPi 4 System on a Chip Solution
Raspberry Pi Compute Module Setup Guide - Page 66
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Introduction
Contents
Revision History
Basic Features
GPIO Summary
Interface Board internal connections and jumpers
Requirements
Important Cautions
About Wireless Connectivity (Wi-Fi and Bluetooth)
Operating System Programming Procedure
1 Basic Setup and Configuration Steps
2 Installing the Compute Module and NEC Compute Module Interface Board to the Display
3 Connections and Internal Operation
3.1 USB device connections to the Compute Module
3.2 USB connections for programming the Compute Module
3.3 LAN connections
3.4 Software control via IR Remote
3.5 GPIO
4 Preparing and running the tools to program the Compute Module
4.1 Using a Windows PC as a host
5 Miscellaneous Configuration Items
5.1 Enabling the onboard USB 2.0 controller
5.2 Enabling 4K@60Hz video output
5.3 Configuring the correct HDMI video level encoding and decoding
5.4 To disable overscan (if black bars are visible on the sides of the screen)
5.5 To rotate the screen image to portrait orientation
5.6 To enable support for the IR Remote receiver using âlircâ
5.7 To test support for the IR Receiver by outputting raw data
5.8 To enable the serial port (UART) to the display and allowing application access
5.9 Testing internal serial communications to the display using the Python based NEC PD SDK
5.10 Configuring the Compute Module to shutdown using shutdown signal from the display
5.11 Reading and setting the displayâs internal Real Time Clock (RTC) from the OS
5.12 Using the displayâs Watchdog Timer (WDT)
5.13 Controlling the Compute Module power
5.14 Controlling the cooling fan automatically based on the CPU temperature
5.15 Checking and updating the display firmware version
5.15.1 Update using the NEC Display Firmware Update Tool for Windows
5.15.2 Update display firmware using a USB storage device
6 Related OSD Settings
6.1 Slot ( Compute Module ( Power Control ( Power Supply
6.2 Slot ( Compute Module ( Power Control ( Power Button
6.3 Slot ( Compute Module ( Power Control ( Reset
6.4 Slot ( Compute Module ( Power Setting ( Auto Power Up
6.5 Slot ( Compute Module ( Power Setting ( Auto Shutdown
6.6 Slot ( Compute Module ( Power Setting ( Power Supply Off Delay
6.7 Slot ( Compute Module ( Power Setting ( Auto Display Off
6.8 Slot ( Compute Module ( Power Setting ( Off Warning
6.9 Slot ï Compute Module ï Advanced Setting ï Shutdown Signal
6.10 Slot ï Compute Module ï Advanced Setting ï IR Signal
6.11 Slot ï Compute Module ï Advanced Setting ï Monitor Control
6.12 Slot ï Compute Module ï Advanced Setting ï WDT
6.13 Slot ï Compute Module ï Advanced Setting ï WDT ï Start Up Time
6.14 Slot ï Compute Module ï Advanced Setting ï WDT ï Period Time
6.15 Slot ( Slot Power
6.16 Input ï Advanced ï CEC ï CEC
6.17 Input (Advanced ( CEC ( Search Device
6.18 Control ( USB ( PC Source
7 Useful Information and Commands
7.1 To find out the IP address of the Compute Module from a terminal window
7.2 To restart from a terminal window
7.3 To shutdown from a terminal window
7.4 To run the Raspberry Pi Config utility from a terminal window
7.5 To change the keyboard layout to US from a terminal window
7.6 To add and remove packages from Raspberry Pi OS
7.7 To update the Raspberry Pi
7.8 To install the Python serial module
7.9 To mount a USB flash drive from the terminal
7.10 To access an SMB (Windows share) drive from the Raspberry Pi OS desktop
7.11 To list connected USB devices
7.12 To show available disk space
7.13 To show internal information about the Raspberry Pi
7.14 To download a file to the current directory
7.15 To find a file by name
7.16 To edit a protected system configuration file from the Raspberry Pi OS desktop
7.17 To prevent the screen saver from blanking the screen after several minutes
7.18 Monitoring the system processes, CPU usage, and memory
7.19 To enable and disable video output from the Compute Module to the display
7.20 To create an image of the Compute Module to backup or clone
7.21 Debug GPIO lines and overlay assignments
7.22 Assign different MAC address to the network interfaces
8 Troubleshooting
9 Video CODECs
10 Python Based NEC PD SDK
11 Compute Module Configuration Tool for Raspberry Pi OS
12 Wireless connectivity installation and configuration
12.1 Important cautions
12.2 Parts identification
12.3 Installing the antenna connector to the Compute Module and routing the coax cable
12.4 Enabling and disabling Wi-Fi at the hardware level
12.5 Selecting the external antenna in software
12.6 Bluetooth functionality
12.7 Troubleshooting wireless functionality
13 External reference information
14 Frequently Asked Questions
15 Known Issues
16 Support
17 Disclaimer
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©2021 Sharp NEC Display Solutions, Lt
d.
Page
66
of
86
https://github.com/
NECDisplaySol
utions/necpds
dk
Example files are incl
uded in the reposit
ory.
These exampl
es are not includ
ed in the package instal
ler.
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File type: PDF
File name: 68330354_mpi4e.pdf
File size: 3.07 MB
File Language: English
Pages: 86
Author: NEC
File created: 2021-10-20
Published:
2023-11-12
Updated: 2023-11-12
Download File
Table of Contents
×
Introduction
2
Contents
3
Revision History
7
Basic Features
8
GPIO Summary
10
Interface Board internal connections and jumpers
10
Requirements
10
Important Cautions
11
About Wireless Connectivity (Wi-Fi and Bluetooth)
11
Operating System Programming Procedure
12
1 Basic Setup and Configuration Steps
13
2 Installing the Compute Module and NEC Compute Module Interface Board to the Display
14
3 Connections and Internal Operation
20
3.1 USB device connections to the Compute Module
20
3.2 USB connections for programming the Compute Module
20
3.3 LAN connections
22
3.4 Software control via IR Remote
24
3.5 GPIO
27
4 Preparing and running the tools to program the Compute Module
28
4.1 Using a Windows PC as a host
28
5 Miscellaneous Configuration Items
33
5.1 Enabling the onboard USB 2.0 controller
33
5.2 Enabling 4K@60Hz video output
33
5.3 Configuring the correct HDMI video level encoding and decoding
33
5.4 To disable overscan (if black bars are visible on the sides of the screen)
35
5.5 To rotate the screen image to portrait orientation
35
5.6 To enable support for the IR Remote receiver using âlircâ
36
5.7 To test support for the IR Receiver by outputting raw data
37
5.8 To enable the serial port (UART) to the display and allowing application access
37
5.9 Testing internal serial communications to the display using the Python based NEC PD SDK
38
5.10 Configuring the Compute Module to shutdown using shutdown signal from the display
38
5.11 Reading and setting the displayâs internal Real Time Clock (RTC) from the OS
39
5.12 Using the displayâs Watchdog Timer (WDT)
40
5.13 Controlling the Compute Module power
41
5.14 Controlling the cooling fan automatically based on the CPU temperature
41
5.15 Checking and updating the display firmware version
42
5.15.1 Update using the NEC Display Firmware Update Tool for Windows
42
5.15.2 Update display firmware using a USB storage device
43
6 Related OSD Settings
44
6.1 Slot ( Compute Module ( Power Control ( Power Supply
44
6.2 Slot ( Compute Module ( Power Control ( Power Button
44
6.3 Slot ( Compute Module ( Power Control ( Reset
45
6.4 Slot ( Compute Module ( Power Setting ( Auto Power Up
45
6.5 Slot ( Compute Module ( Power Setting ( Auto Shutdown
45
6.6 Slot ( Compute Module ( Power Setting ( Power Supply Off Delay
46
6.7 Slot ( Compute Module ( Power Setting ( Auto Display Off
46
6.8 Slot ( Compute Module ( Power Setting ( Off Warning
47
6.9 Slot ï Compute Module ï Advanced Setting ï Shutdown Signal
47
6.10 Slot ï Compute Module ï Advanced Setting ï IR Signal
48
6.11 Slot ï Compute Module ï Advanced Setting ï Monitor Control
48
6.12 Slot ï Compute Module ï Advanced Setting ï WDT
48
6.13 Slot ï Compute Module ï Advanced Setting ï WDT ï Start Up Time
49
6.14 Slot ï Compute Module ï Advanced Setting ï WDT ï Period Time
49
6.15 Slot ( Slot Power
50
6.16 Input ï Advanced ï CEC ï CEC
50
6.17 Input (Advanced ( CEC ( Search Device
51
6.18 Control ( USB ( PC Source
51
7 Useful Information and Commands
54
7.1 To find out the IP address of the Compute Module from a terminal window
54
7.2 To restart from a terminal window
54
7.3 To shutdown from a terminal window
54
7.4 To run the Raspberry Pi Config utility from a terminal window
54
7.5 To change the keyboard layout to US from a terminal window
54
7.6 To add and remove packages from Raspberry Pi OS
55
7.7 To update the Raspberry Pi
55
7.8 To install the Python serial module
55
7.9 To mount a USB flash drive from the terminal
55
7.10 To access an SMB (Windows share) drive from the Raspberry Pi OS desktop
56
7.11 To list connected USB devices
56
7.12 To show available disk space
56
7.13 To show internal information about the Raspberry Pi
56
7.14 To download a file to the current directory
56
7.15 To find a file by name
57
7.16 To edit a protected system configuration file from the Raspberry Pi OS desktop
57
7.17 To prevent the screen saver from blanking the screen after several minutes
57
7.18 Monitoring the system processes, CPU usage, and memory
57
7.19 To enable and disable video output from the Compute Module to the display
57
7.20 To create an image of the Compute Module to backup or clone
58
7.21 Debug GPIO lines and overlay assignments
58
7.22 Assign different MAC address to the network interfaces
58
8 Troubleshooting
59
9 Video CODECs
64
10 Python Based NEC PD SDK
65
11 Compute Module Configuration Tool for Raspberry Pi OS
67
12 Wireless connectivity installation and configuration
69
12.1 Important cautions
69
12.2 Parts identification
70
12.3 Installing the antenna connector to the Compute Module and routing the coax cable
71
12.4 Enabling and disabling Wi-Fi at the hardware level
76
12.5 Selecting the external antenna in software
76
12.6 Bluetooth functionality
76
12.7 Troubleshooting wireless functionality
76
13 External reference information
78
14 Frequently Asked Questions
80
15 Known Issues
84
16 Support
85
17 Disclaimer
86
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