Variscite VAR-SOM-MX7 Evaluation Kit User Guide

: June 16, 2024
: Variscite

Table of Contents

Variscite VAR-SOM-MX7 Evaluation Kit
Product Information
Product Usage Instructions
Features
Evaluation kit Initial Setup
Setting the Host PC for Debug
Using Default file System
Burning Recovery File System
Additional Support Links
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Variscite VAR-SOM-MX7 Evaluation Kit

Product Information

Specifications

Product Name: VAR-SOM-MX7 based on NXP/Freescale i.MX7 Evaluation Kit
Model Number: VAR-SOM-MX7
Manufacturer: Variscite

Features

LCD Display
VAR-MX7CustomBoard
USB Debug Connector (J23)
PC Terminal Software Compatibility
eMMC or NAND Flash Storage Options
Boot Select Switches (SW1 and SW2)
Wall Adapter Power Jack (J25)
MicroSD Card Slot (J17)

Product Usage Instructions

Evaluation kit Initial Setup
To set up the evaluation kit, follow these steps:

Carefully remove the 7″ LCD and VAR-MX7CustomBoard from the package.
Plug the USB type A to micro B cable between the USB debug connector (J23) and a PC USB port.

Setting the Host PC for Debug
To set up the host PC for debugging, follow these steps:

Download any PC terminal program. Variscite suggests using Putty.
Set the PC terminal software parameters as follows:
- Baud Rate: 115200
- Data bits: 8
- Stop bits: 1
- Parity: None
- Flow Control: None

Using Default File System
To use the default file system, follow these steps:

Depending on your SOM’s HW configuration, choose between eMMC or NAND Flash:
- eMMC boot: Set Boot select switch #1 (SW1) Rightwards & Boot select switch #2 (SW2) Leftwards to boot from VAR-SOM-MX7 eMMC.
- NAND boot: Set Boot select switch #1 (SW1) Leftwards & Boot select switch #2 (SW2) Rightwards to boot from VAR-SOM-MX7 NAND.
Power ON the VAR-MX7CustomBoard by plugging the wall adapter’s pin into the 5V power jack (J25) and to a 120VAC~240VAC power source.
Boot messages will be printed within the PC’s terminal window.

Booting from a micro SD Card
To boot from a micro SD card, follow these steps:

Power Off the VAR-MX7CustomBoard by disconnecting the wall adapter’s pin from the 5V power jack (J25).
Set Boot select switches #1 (SW1) & #2 (SW2) Leftwards to boot from the microSD Card.
Push the microSD card into the microSD card slot (J17) of the VAR-MX7CustomBoard.
Power ON the VAR-MX7CustomBoard by plugging the wall adapter’s pin into the 5V power jack (J25) and to a 120VAC~240VAC power source.
Boot messages will be printed within the PC’s terminal window.

Burning Recovery File System
To burn the recovery file system, please refer to Variscite’s wiki pages for preparing a recovery SD card and burning internal storage (NAND/eMMC).
For detailed instructions, visit:https://variwiki.com/index.php?title=Yocto_Recovery_SD_card_latest

FAQ
Where can I find additional support?
You can find additional support and resources at the following links:

For additional assistance, please contact: sales@variscite.com

VAR-SOM-MX7 based on NXP/Freescale i.MX7 Evaluation Kit Quick Start Guide

Features

5V DC In Jack (J25)
USB Debug (J23)
Gigabit Ethernet #2 (J19)
Gigabit Ethernet #1 (J18)
USB Host #2 (J22)
USB Host #1 (J21)
MIPI CSI-2 Camera [optional add-on] (J20)
RTC Battery Holder (JBT1)
Mini PCI Express Connector (J16)
UART3/SAI2 Header (J13)
ADC2/SPI Header (J10)
LCD/CSI Header (J1)
LCD/CSI Header (J2)
LCD/CSI Header (J3)
LCD/CSI Header (J4)
CSI/UART2 Header (J5)
LVDS Header (J6)
ADC1/Analog Mic Header (J7)
I2C/CAN Bus Header (J14)
Resistive Touch (J8)
Capacitive Touch (J9)
Line In (J12)
Headphones (J15)
Boot select switch #1 (SW1)
Micro SD Card slot (J17)
Boot select switch #2 (SW2)
User button #3 (SW3)
User button #2 (SW4)
User button #1 (SW5)
Reset Button (SW6)
On/Off Button (SW7)

Evaluation kit Initial Setup

Carefully remove the 7” LCD and VAR-MX7 CustomBoard board from the package.
Connect the 7” LCD Display and Touch cables to the Evaluation Kit connectors J6, J9 respectively.
Note:
Display cable connector pins 1, 2 (colored in red) should be connected to J6 pins 1, 2 respectively.
Touch cable – connect cable with metal contacts facing down.
Plug the USB type A to micro B cable between the USB debug connector (J23) and a PC USB port.

Setting the Host PC for Debug

Download any PC terminal program. Variscite suggests using Putty
Set PC terminal software parameters as follows:
- Baud Rate: 115200
- Data bits: 8
- Stop bits: 1
- Parity: None
- Flow Control: None

Using Default file System

Depending on your SOM’s HW configuration, eMMC or NAND Flash assembled:
eMMC boot:
Set Boot select switch #1 (SW1) Rightwards & Boot select switch #2 (SW2) Leftwards to boot from VAR-SOM-MX7 eMMC.
NAND boot:
Set Boot select switch #1 (SW1) Leftwards & Boot select switch #2 (SW2) Rightwards to boot from VAR-SOM-MX7 NAND.
Power ON the VAR-MX7CustomBoard by plugging the wall adapter’s pin into the 5V power jack (J25) and to a 120VAC~240VAC power source.
Boot messages will be printed within the PC’s terminal window.

Booting from a micro SD Card
The microSD card is supplied within the package. The image can be also downloaded from the Variscite FTP site. Please refer to the “Burning Recovery File System” section.

Power Off the VAR-MX7CustomBoard by disconnecting the wall adapter’s pin from the 5V power jack (J25).
Set Boot select switches #1 (SW1) & #2 (SW2) Leftwards to boot from microSD Card.
Push microSD card into the microSD card slot (J17) of the VAR-MX7CustomBoard.
Power ON the VAR-MX7CustomBoard by plugging the wall adapter’s pin into the 5V power jack (J25) and to a 120VAC~240VAC power source.
Boot messages will be printed within PC’s terminal window.

Burning Recovery File System

Please refer to Variscite’s wiki pages for preparing recovery SD card and burning internal storage (NAND/eMMC) at: https://variwiki.com/index.php?title=Yocto_Recovery_SD_card_latest