Variscite Symphony-Board Single Board Computer (SBC) in conjunction with VAR-SOM-MX8M-NANO System on Module (SoM) based on NXP’s i.MX 8M Nano.
Variscite provides two evaluation kits variants: Starter Kit and Development Kit, which comes with Display and Touch Panel.
Specifications VAR-SOM-MX8M-NANO:
- NXP i.MX 8M Nano:
- 4x ARM Cortex-A53 @ 1.5GHz
- 1x Cortex-M7 @ 750MHz
- Memory: 1GB DDR4-2400
- GPU: Vivante GC7000UL 3D
- Display:
- MIPI DSI 1080p60
- Dual LVDS 1080p60
- Storage:
- eMMC up to 64GB,
- SD card
- Network:
- Ethernet: 10/100/1000 Mbps,
- WiFi: Certified 802.11 a/b/g/n/ac,
- Bluetooth: 4.2, BLE
- RTC on carrier
- 3x I2C
- 3x SPI
- 4x UART
- 1x USB 2.0 OTG
- Audio:
- Headphone
- Microphone: Digital, Analog (stereo)
- 5x I2S(SAI), S/PDIF, PDM, Line In/Out
- Temperature Range: -40 to 85°C
- Dimensions: 67.8mm x 33.0mm
Power control
Board can be powered via a DC Power Jack (J24) 12V/3A DC input, center positive. A Power ON Switch (SW7) is placed right next to the DC Jack.
Boot selection
While the board is powered OFF, the Boot Select Switch (SW3) can be set to choose the booting device: INT (eMMC/NAND) or SD (micro SD card).
Low-level boot control
Serial connection to the board can be done plugging a USB type A to micro B cable to the USB Debug Connector (J29). Serial port settings 115200 8N1.
Network connectivity
There is a standard Gigabit Ethernet Jack (J21) on the device that can be used.
Bootloader
For the bootloader the Apertis u-boot build should be used (as it allows for testing Apertis specifics).
The main bootloader is stored in eMMC. Documentation on how to install this can be found on the apertis setup page
Load addresses:
- kernel: 0x40480000
- dtb: 0x43000000
- ramdisk: 0x43800000
Health checks
- Mainline Linux kernel support in ARM64 defconfig since release v5.10.
- Apertis Linux ARM64 package support since release 5.10.40-1+apertis1.
Lab notes and trouble shooting
None.