imx6 lcd panel in stock
I believe that I need 32bpp frame buffer for Qt but the lcd interface use 24 bits. Does I choosen the right values into lcd and mxcfb1 blocks in the dts file?
To begin with, the U-Boot versions we’re shipping don’t yet support displays. Fabio Estevan published some patches that allow Sabre Lite to support the Freescale panel and we have some patches gathering dust that support the RGB display and our 1024×600 panel, but we haven’t yet released this into our shipments.
This clause specifies the output interface used for the display. Options are lcd for the parallel RGB interface, ldb for the LVDS interface and hdmi for the HDMI transmitter.
This clause can either define a named panel such as LDB-XGA or CLAA-WVGA or a resolution in VESA Coordinated Video Timings format. Named panels are defined in a board-specific file.
This clause defines the output format at the transmitter. Options include RGB666 for 18-bit panels and RGB24 for 24-bit displays. Note that this does not define the in memory bit depth of the frame buffer. That’s done with the bpp= kernel command-line parameter.
Support for the 1024×600 LVDS panel was added after the Android image was built. Please note the notes in the comment section for a description of how to add support for this panel.
When debugging whether the LCD screen can be used on the development board, we should first check if the line sequence used on the screen hardware can be consistent with the hardware line sequence on the development board; software debugging can only be performed if the hardware can be connected to the development board. Then, after the hardware is connected, check whether the LCD screen is lit. If the screen cannot be lit, first check the PWM backlight control; when the screen can be lit, we can debug the display, which is the main purpose of this article.
Modify linux-3.0.35/drivers/video/mxc/mxc_lcdif.c and add the red part to the following structure. The parameters in the red part are the same as those in UBOOT.
The modifications that we often involve in the LCD display part are mainly the parts mentioned above. After the modification, write the image file generated by recompilation to the development board, and connect it to the 10.4-inch LCD screen to see it. The screen can be displayed normally.
Some LCD manuals will directly give the values of these 6 parameters, then you can set them directly according to the values given in the hardware manual, and fine-tune them when debugging.
Most examples in the kernel are directly set to FB_VMODE_NONINTERLACED. Interlaced means interlaced scanning. In TV, a 2:1 interleaving rate is used, that is, each frame is divided into two fields, scanned twice vertically, one scans odd lines, and the other scans even lines. Obviously LCD is not this model.
The content of this article is only a preliminary introduction. Many parameters are not introduced in detail. The LCD driver and support are relatively extensive. If you are interested, you can consult the relevant content online.
We have implemented all the cache optimizations possible for the iMX6 Cortex-A7 and Cortex-A9 in combination with the PL310 L2 Cache Controller and we have configured DDR3 per board at the most optimal, fully stress tested, settings. The GuruCE iMX6 BSP is (up to 6x) faster than any other iMX6 BSP on the market today. Speed guaranteed!
Our BSP supports the iMX6 UltraLight, ULL, Solo, DualLite, Dual, DualPlus, Quad and QuadPlus processor range, so you can scale your HW design up or down with ease.
All hardware definitions name-synchronized with the iMX6 Reference Manuals. A large amount of NXP (formerly Freescale) code re-factored, cleaned up & bug fixed, and all redundant code removed and restructured. No more searching for driver code distributed throughout the BSP in different folders. Now the BSP is easily maintainable, well-structured & production ready. If you have worked with BSPs from NXP/Freescale or some of our competitors before you know what this means and why this is so important. Code quality and BSP structure is everything!
Our iMX6 bootloader offers many more configuration options and features, like selecting the serial debug port to use, blowing fuses, configuring the Ethernet settings to be used in Windows Embedded Compact and starting the kernel with a clean registry hive. It also fully supports booting from SPI Flash, SATA, NAND, SD and MMC, and has full support for formatting and partitioning SATA, NAND, SD and MMC and erasing/writing SPI Flash.
This means you can plug in a 1360x768 monitor and have the CE desktop shown in that resolution, then unplug the monitor and plug in a 1920x1080 monitor and CE will dynamically change resolution and show the desktop in 1920x1080 resolution, all this of course without the purple line on the left (a long standing problem in all the other iMX6 BSPs available).
Fully configurable FlexCAN driver. Access and control 2 separate CAN buses from your application with full configuration and timing control. Our High Performance FlexCAN driver for real busy CAN buses is available for iMX6 as well.
Fully configurable, DMA enabled, Enhanced Configurable SPI driver. All functionality offered by the iMX6 is supported and configurable in our driver. Unfortunately the iMX6 still contains the same silicon bug as on the iMX53, but at least our driver warns you when you hit this condition.
The iMX6 SoloX Developer"s Kit lets you get up-and-running quickly with the iMX6 SoloX COM Board. All relevant interfaces are available for evaluation or prototyping.
The iMX6 Rex UltraPlus development system based on i.MX6 ARM CortexTM-A9 core family CPU clocked up to 1.2GHz has been designed to significantly reduce one"s own application development time as well as the final device time to market by allowing:
All of the standard iMX6 Rex Module configurations are equipped with one 60-pin High Speed Ground Plane Socket on position J1 that provides access to all of the basic, must-have peripherals.
The UltraPlus, Ultraand Pro configuration COMs are equipped also with the second connector on position J2 that contains additional, high speed interfaces. For more details about the peripherals location on J1 and J2 high speed ground plane sockets see the iMX6 Rex Module block diagram.
Processor: FreescaleTM iMX6®–Quad ARM®–Quad ARM® Cortex up to 1.8 GHz / Intel E3940 up to 1.8 GHz / FreescaleTM i.MX6®–Quad ARM® CortexTM-A9 up to 1.0 GHz with TrustZone® for SIL application
CPUFreescaleTM iMX6®–Quad ARM®–Quad ARM® Cortex up to 1.8 GHz / Intel E3940 up to 1.8 GHz / FreescaleTM i.MX6®–Quad ARM® CortexTM-A9 up to 1.0 GHz with TrustZone® for SIL application
PICO-iMX6 modules are members of compact, pin-compatible and long-term available platform with scalable performance optimized for digital signage, multimedia applications and panel computing. This is an archive article published 01/09/2017. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.
Moduly PICO-iMX6 can be combined with HobbitGL carrier board, LVDS expander board and 7” 1024x600 TFT LCD kit with resistive touch panel. PICO-iMX6 module combined with NymphGL carrier board provide HDMI for external display and LVDS for internal TFT LCD panel like 7” 1024x600 TFT LCD panel kit with projective capacitive multi touch panel. Audio codec on both carrier boards provide LineOut and MicIn. Gbit Ethernet and onboard Wi-Fi 802.11ac/Bluetooth LE 4.0 provide seamless connectivity to Internet or local network.
PICO-iMX6 modules are based on NXP ARM Cortex-A9 i.MX6 1, 2, or 4 core application processor combined with 512MB/1GB DDR3 RAM and 4GB eMMC or microSD card slot. Capacity of RAM can be increased up to 2GB and eMMC up to 64GB.
When you issue article on your website, please give its source: https://www.soselectronic.com/articles/technexion/pico-imx6-a-powerful-basis-for-your-digital-signage-1927
i.MX 6SoloX Automotive and Infotainment Applications Processor ARM Cortex A9/ARM Cortex M4 800MHz/227MHz 128KB SRAM -40°C to 125°C 400-Pin MAPBGA Tray - Trays (Alt: MCIMX6X1AVK08AC)
i.MX 6 Quad-Core Processor with ARM Cortex-A9 Core 3D Graphics HD Video Multimedia Automotive with VPU and GPU 852MHz -40 to +125°C 625-Ball FCPBGA Tray (Alt: MCIMX6Q6AVT08AE)
This application note describes the i.MX6 CPU graphical system and the steps to define a new custom TFT (Thin Film Transistor) display panel in Digi Embedded Yocto and discusses the most standard panels available. Some panels may need special consideration.
An LCD panel is a matrix of pixels that are divided into rows and columns. These pixels are individually painted according to different signals and timing parameters, and you can control each pixel"s color individually. The panel is continuously refreshed, typically at around 60 Hz, from the contents of the frame buffer memory. Each memory location on the frame buffer corresponds to a pixel on the LCD panel.
A 1024 x 600 resolution display requires 614400 memory locations, with each location having a number of possible colors. The number of bits needed to describe the available colors is called bits per pixel (bpp). For example, 16 bpp can describe 65536 colors and 24 bits can describe 16777216 colors (known as true color). A panel with 614400 24-bit locations requires a 1800 KB frame buffer.
Every manufacturer provides display timings in a slightly different way and some provide more detail than others. Most LCD panels work with a range of timing parameters.
LCD displays must be created as nodes in the device tree with a display-timings subnode. Display timings binding documentation at Documentation/devicetree/bindings/video/display-timing.txt explains the required timing properties to describe an LCD.lcdname {
hfront-porch is the horizontal front porch, the number of clock pulses (pixels) between the last valid pixel data in the line and the next HSYNC pulse. According to the LCD data format, this value is zero.
vfront-porch is the vertical front porch, the number of lines (HSYNC pulses) between the last valid line of the frame and the next VSYNC pulse. According to the LCD data format, this value is zero.
NoteThe recommended timings from the LCD datasheet often do not work perfectly, as each platform introduces noise and delays that affect the display"s signals and timings.
This color chart displays a white one-pixel frame at the edges of the LCD (which allows you to verify correct position and width/height), and gradients of red, green, blue, and white (which allow you to verify correct color depth and format).