Q7-928

From WIKI SECO
Seco Q7-928


Q7-928 is a Qseven® Rel. 2.0 Compliant Module designed by SECO that offers top computational and graphical performances given by low-power consuming ARM architecture.
The board integrates i.MX6 Multimedia Applications platform from NXP, a multimedia processor integrating a multi-core Cortex® A9 ARM Core (up to Quad Core processors), ideal for applications requiring multimedia capabilities and/or high levels of parallel computing.

For hardware-related information, such as board's specific features, configurations, electrical interface and more, please refer to the product page (http://www.seco.com/prods/eu/category/qseven-boards/q7-928.html).

Available BSPs

Latest:

Seco BSP9

At this link you can find all the instruction to build the binaries and to flash them for every specific board configuration:

Getting Started with BSP 9.0


Previous versions available of Linux based BSPs for Seco-Q7-928:

Seco BSP5
Seco BSP6
Seco BSP7
Seco BSP8
BSP U-Boot Release Kernel Release Filesystems Release
BSP v5.0 U-Boot 2014.04 Kernel 3.14.28 Filesystems v5.0
BSP v6.0 U-Boot 2015.04 Kernel 4.1.15 Filesystems v6.0
BSP v7.0 U-Boot 2017.03 Kernel 4.9.88 Filesystems v7.0
BSP v8.0 U-Boot 2018.03 Kernel 4.14.78 Filesystems v8.0

Boot

SECO™ Q7-928 are highly versatile in terms of boot media; this section focuses on these boot media and explains how to configure preferences and order. This versatility is achieved through a widely used bootloader, called uboot.

600px]


BSP element Sources
eMMC uSD external SD SPI Flash USB TFTP NFS SATA (Quad only)
U-Boot Yes Yes Yes Yes No No No No
Kernel (zImage + dtb) Yes Yes Yes No Yes Yes Yes
ramfs Yes Yes Yes No Yes Yes Yes
File System Yes Yes Yes No Yes Yes Yes


The logical function of the SSM system is as follows: when switching the power on to the module, the Embedded Controller reads its internal records for the configuration of the boot sequence and the first boot device and then passes the information to the CPLD. At this point, the CPLD drives the boot strap of the i.MX6 and then the Embedded Controller releases the reset of the i.MX 6 processor, which tries to load the bootloader from boot device 1 and executes it. If the boot loader has found a valid uboot, the i.MX 6 sends a feedback (boot validate signal) to the Embedded Controller to indicate that the boot was successful. If, instead, the bootloader run is invalid or if the boot device is empty, the Embedded Controller does not receive the boot validated, and then it passes the information regarding the next boot device to the CPLD.The CPLD drives the new boot strap of the i.MX 6 to change the boot device and the Embedded Controller resets the i.MX 6, which again tries to load and execute the bootloader. The cycle repeats itself until it finds a valid boot device with a bootloader or all boot devices have been scanned.
A logic flow is:


Table 928.png


Board Features

Some of the features supported by BSP in Q7-928 varies from the other i.MX6 modules. For the common features supported by BSP in all the i.MX6 modules, refer the page SECO i.MX6 Features Guide BSP 5.0 & SECO i.MX6 Features Guide BSP 6.0.The unique features and supported devices in BSP for Q7-928 is tabulated below.


Feature Virtual Device Status Note
UART2 ttymxc1 okay /
UART4 ttymxc3 okay /
UART5 ttymxc4 okay /
Touch Screen input0 / Must be enabled
SPI NOR mtd0 okay Support SST 25VF080B SPI NOR flash via ECSPI1
Audio AC'97 / / Supports VT1613 codec
Audio I2S / / Supports SGTL5000 codec
PCIe / okay Intel Gigabit CT network standard PCI-e x1 card

Atheros AR9281 WiFi miniPCI-e x1 card

SDHC3 mmcblk0 okay 1bit/4bit/8bit for eMMC on-board.
SDHC1 mmcblk1 okay 1bit/4bit/8bit for MMC/SD external.
SDHC4 mmcblk2 okay 1bit/4bit for µSD on-board
I2C1 i2c0 okay Used for Embedded controller interface.
I2C2 i2c1 okay Used for EDID HDMI Monitor.
I2C3 i2c2 okay Used for codec SGTL5000.
CAN1 can0 disabled Must be enabled from dts
PWM OUT0 backlight okay Used for backlight control from Native i.MX6.
PWM OUT1 / / From cpld is available on Q7 Golden Fin Connector.
PWM_OUT2 / / From Native i.MX6 is available on Q7 Golden Fin Connector.
TIMER / / TIMER_IN is directly managed by lattice cpld and makes available on Q7 Golden Fin Connector.
WIFI / / Atheros AR9281 Wi-Fi miniPCI-e x1 card.
EMBEDDED

CONTROLLER

ectrl okay /
LPC BUS / / LPC Bus implemented through LCMXO640 (Lattice cpld chip).The LPC Signals
LPC_AD[0÷3] , LPC_CLK , LPC_FRAME# , LPC_LDRQ# , SERIRQ are available 

on Q7 Golden Fin Connector.

SUOPERIO VIA LPC / / SuperIO W83627DMG-P with support for 2 UART RX/TX and a GPIO expander x8 I/O.

SuperIO EXAR XR28V382.

GPIO EXPANDER

VIA CPLD

/ / Support for in/out GPIO expander x8 I/O via CPLD.

Management of the GPIO interrupts.

PCA9655 I2C IO EXTENDER / / 16bit-I/O Expander,It Extends upto 16 Input or Output GPIO's


Available GPIO

Above the list of alvaible GPIO from Q7 connector of μQ7-962 board.


Q7 PIN NO IMX6 PAD MUX MODE GPIO VIRTUAL NUMBER
111 GPIO_2 GPIO_2 2
112 GPIO_4 GPIO1_IO04 4
125 GPIO_6 GPIO1_IO06 6
126 GPIO_7 GPIO1_IO07 7
128 GPIO_8 GPIO1_IO08 8
44 GPIO_18 GPIO7_IO13 205
127 GPIO_19 GPIO4_IO05 101


Carrier Board

The available carrier board is the Qseven® Carrier Board CQ7-A42, this is a full featured carrier board for Qseven® Rel. 2.0 compliant CPU modules, in 3.5” form factor.
The SECOCQ7-3.5 has been developed most of all as a development board to explore the possibilities offered by Qseven® modules, but it could also be a good solution for low volumes production for companies that do not want or need to develop customized carrier board.

For more information about carrier board specification CQ7-A42


Logo seco.png