Forum - Recent Threads

mipi dsi support

satds — Fri, 03 Feb 2023 04:50:27 GMT

On warp7 board, I am trying to enable mipi dsi display in u-boot, but looks like mipi dsi controller support is not available, can you guide me on that?

Debugging and integration of 3rd party modules in Warp7?

gabustag — Tue, 30 Jun 2020 10:25:31 GMT

Hello,

i would like to know few things.

1. is there a document /video tutorial about " how to debug Warp7"?

2. if i want to add my own 3rd party sensors how can i

1. get low level drivers for the same ( for example SPI, UART) and if it is possible, do we have low level configurator/generator for the same for fast development?

Regards

Addi

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

clem57 — Fri, 23 Aug 2019 17:31:56 GMT

Warp 7 sounds like a nice board.

How to use CPU-Board only (configuring efuses)

mreif — Tue, 09 Apr 2019 12:01:59 GMT

Hi guys,

i need help to run the CPU-Board without the IO-Board. As far as i understand the situation this does simply not work because the Jumpers on the IO-Board are not present the the CPU-Board goes into serial Bootloader-Mode.

So my solution would be to set the efuses in a way that the board does always boot into emmc except the jumpers are set so that the serial bootloader could be used.

I already broke one board by setting the wrong fuses and i would like some help an the matter.

So far i found out that the the documentation on the fuses can be found here: IMX7DRM but i have trouble understanding it correctly.

I also know that i can burn the fuses in u-boot with the command "fuse prog".

Can someone tell me which fuse i would have to burn and how the excat command would look like?

Thank you very much!

Warp 7 Expansion Ports

orenrocco — Wed, 03 Apr 2019 14:14:21 GMT

How do I access the access the expansion ports, are they GPIOs, and in addition what are their addresses?

Please help ASAP

Is there any way to get non Allegro .brd layout design files for the WaRP 7 development board?

caha0068 — Fri, 07 Dec 2018 15:24:36 GMT

It is impossible to convert and work with the files using an editor that is not Cadence Allegro and that is not very supportive of an open source schema. If we could get an ASCII version at the very least, that would be nice.

RE: USB Mass Storage can't be detected as /dev/sdb

elem2018 — Wed, 12 Sep 2018 14:31:32 GMT

According to your hints I tried the same process wiht a pure 4-Port USB 2.0 hub instead of previous 4-Port USB 2.0/3.0 hub. But the results are the same. WARP7 is deteced firstly as USB storage device but resetted subsequently.

Finally I noticed that the USB 2.0 driver on my laptop is virtual ehci-pci driver because I use VM Ubuntu as guest system. So I changed to standalone ubuntu box and tried the same process again, and now it works just fine, without any issue.

So the solution is to use linux box instead of the VM linux guest. This case can be closed.

-Xi

RE: USB Mass Storage can't be detected as /dev/sdb

Gough Lui — Wed, 29 Aug 2018 09:28:01 GMT

I'm not familiar with the hardware you're dealing with .... but some suggestions would be

Perhaps try a different USB drive or device - your particular unit seems to have known problems under Linux, specifically this line:

[ 997.717282] usb-storage 1-1:1.0: Quirks match for vid 0525 pid a4a5: 10000

That seems to imply that this particular device has some issues with its behaviour that causes strange behaviour and some workarounds are being applied. It's worth trying a different drive just to see if it is the drive itself or something else.

Another thing which seems a little strange to me is that the drive seems to be registered using the uas driver and then it seems to be reset/dropped out after a while:

[ 997.740037] usbcore: registered new interface driver uas

[ 1020.196637] usb 1-1: reset high-speed USB device number 2 using ehci-pci

This seems to imply to me that your device is behaving like a USB external hard drive/SSD using a bridge chip (maybe)? It's seemingly confusing the operating system as normally UASP is only used over USB 3.0 interfaces, and it's connected using EHCI (USB 2.0) rather than xHCI (USB 3.0). I'd try using a USB 2.0 only bridge board or enclosure, or a non UASP capable bridge chip as an alternative, or even a USB 3.0 one but with a different chipset. Otherwise check the power supply to the drive (if it needs a high amount of power, it might not work) and the cable (esp if using cheap USB-OTG cable, this could be a source of issues). Maybe disabling the UAS driver could help.

- Gough

RE: USB Mass Storage can't be detected as /dev/sdb

elem2018 — Wed, 29 Aug 2018 07:31:08 GMT

Rod,

any hint to get sdb ?

USB Mass Storage can't be detected as /dev/sdb

elem2018 — Tue, 28 Aug 2018 08:37:53 GMT

Hello,

I followed the following instructions: (switch 2 is on the low position)

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

For flashing kernel and rootfs, the eMMC space needs to be mounted, we will use uboot ums command for that.

+ expand source view plain

=> ums 0 mmc 0

Checking the emmc device...In most cases the emmc device will be sdb unless you have multiple mass storage device connected to your PC.

+ expand source view plain

$ ls /dev/sd*

After typing ums 0 mmc 0, I can see one USB device (Netchip usb download gadget) is detected in VM Ubuntu 14.04. Dmesg gives the following messages:

...

[ 997.389492] usb 1-1: new high-speed USB device number 2 using ehci-pci

[ 997.649479] usb 1-1: New USB device found, idVendor=0525, idProduct=a4a5

[ 997.649489] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[ 997.649492] usb 1-1: Product: USB download gadget

[ 997.649493] usb 1-1: Manufacturer: FSL

[ 997.712231] usb-storage 1-1:1.0: USB Mass Storage device detected

[ 997.717282] usb-storage 1-1:1.0: Quirks match for vid 0525 pid a4a5: 10000

[ 997.717444] scsi host33: usb-storage 1-1:1.0

[ 997.725268] usbcore: registered new interface driver usb-storage

[ 997.740037] usbcore: registered new interface driver uas

[ 1020.196637] usb 1-1: reset high-speed USB device number 2 using ehci-pci

[ 4042.905267] hrtimer: interrupt took 11121686 ns

....

it is clear that the usb download gadget is found, but fdisk -l doesn't show the /dev/sdb

$ sudo fdisk -l

Disk /dev/sda: 536.9 GB, 536870912000 bytes

255 heads, 63 sectors/track, 65270 cylinders, total 1048576000 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x000928fe

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 1031798783 515898368 83 Linux

/dev/sda2 1031800830 1048573951 8386561 5 Extended

/dev/sda5 1031800832 1048573951 8386560 82 Linux swap / Solaris

Would you please tell me how can I get the usb download gadget detected as /dev/sdb ?

In Google unfortunately I can't find any solution. Any hint will be appreciated.

Thanks

Elem

RE: USB Mass Storage can't be detected as /dev/sdb

elem2018 — Tue, 28 Aug 2018 09:35:55 GMT

xfamed@ubuntu:~$ lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

sda 8:0 0 500G 0 disk

├─sda1 8:1 0 492G 0 part /

├─sda2 8:2 0 1K 0 part

└─sda5 8:5 0 8G 0 part [SWAP]

sr0 11:0 1 1024M 0 rom

without sdb I don't know how to burn the whole image on it.

RE: USB Mass Storage can't be detected as /dev/sdb

14rhb — Tue, 28 Aug 2018 09:29:57 GMT

What does lsblk command give you?

Rod

WaRP7 Displays

quickexperiment — Fri, 07 Oct 2016 13:52:29 GMT

Does the Element14 Store (newark.com, etc.) sell any MIPI displays that are compatible with WaRP7? If not, will any WaRP7-compatible display become available there and when? Will any MIPI display work with the WaRP7?

Thank you in advance for answering any of these questions.

RE: WaRP7 Displays

iotnew — Thu, 12 Apr 2018 08:53:18 GMT

Hi Pierre

I used your patch, but there is a problem.

Everytime, when I boot up, text on console screen will display at different position.

Ex: some time it display in center or bottom or too left.

I think it is problem of margin or screen resolution but it didn't.

Is there any lines that you think it will affect display of screen ?

Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

vnr1992 — Thu, 29 Sep 2016 08:38:56 GMT

Hi All,

On WaRP 7 board, I am trying to run Linux on Cortex A7 and RTOS based binary on Cortex M4.

I need to run both of these cores simultaneously.

While doing this, I followed below steps...

1) Run U-boot on A7

2) Load M4 binary in TCM attached to M4 using fatload command on Uboot.

3) Run M4 core by bootaux <image addr>

(At this stage M4 binary is successfully executed.)

4) run bootcmd on Uboot console to run Linux image.

At this stage, I am not able to run linux image and kernel is not be able to boot.

I looked in support for other NXP based boards. They are providing support for separate linux device tree blob (dtb) for this purpose with which it let M4 run simultaneous binary.

Does anyone aware about this kind support for WaRP7 board?

Thank you for your help in advance.

Regards,

Vivek

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

hanooi — Sun, 18 Mar 2018 07:39:56 GMT

Ok, thanks for the correction! I never found any documentation on how I could create Debian using Yocto.

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

mhanuel — Sun, 18 Mar 2018 04:35:05 GMT

Hello Han Ooi,

Just to clarify, Yocto is not a Linux distribution, It's a platform that help you build Linux system for embedded devices. Yocto is a pain if you see it the way you looked at it, which I think was the wrong way because it need to be setup correctly, which was exactly what did the professional service company you use for having debian.

I agree with you about documentation, sometimes tend to be very obscure.

By the way you can create debian using Yocto, there is a layer meta-debian.

https://github.com/meta-debian/meta-debian

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

hanooi — Sat, 17 Mar 2018 07:00:39 GMT

The answer is you don't get Debian working with Yocto. Debian is a different Linux. Basically what happened is I formatted Debian over Yocto. Yocto is gone.

I paid a professional developer to have a Debian BSP made for my custom Warp7. Now things are so much better. Yocto is a total pain. With Debian, my Warp7 is like a Raspberry Pi or BeagleBone. I'm able to take a Pi book and do much of the same with my Warp7.

The books and documentation I found on Yocto are all really lame and I could barely do anything with it.

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

mhanuel — Sat, 17 Mar 2018 05:09:34 GMT

Hello hanooi,

I am looking to have debian on imx7, would you give me some advice of how it can be done using yocto? I know of a meta-debian layer but last time I document myself there was no bsp for imx7.

I will appreciate your comments,

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

texierp — Thu, 08 Mar 2018 16:51:47 GMT

I think, you just have to update your zImage to support RPMsg, see the following patches:

- https://github.com/WaRP7/meta-warp7-distro/blob/master/recipes-kernel/linux/linux-warp7/imx7s-warp/ARM-imx-Add-imx7s-war…

- https://github.com/WaRP7/meta-warp7-distro/blob/master/recipes-kernel/linux/linux-warp7/imx7s-warp/0005-Add-m4-support-a…

- https://github.com/WaRP7/meta-warp7-distro/blob/master/recipes-kernel/linux/linux-warp7/imx7s-warp/0004-Add-m4-support.p…

---

Pierre-Jean

RE: Linux DTB support to run Cortex A7 and Cortex M4 simultaneously on WaRP 7

hanooi — Thu, 08 Mar 2018 16:46:32 GMT

Would it work with Debian Linux? My customized Warp7 board now uses Debian.

RE: Android 5.0 support on WaRP7?

bittobyto — Sun, 04 Mar 2018 01:02:50 GMT

Thanks for the info!

I've been working on building the image myself on a Linux host PC but I still need to install some of the required packages. I'll post an update once I can get the whole thing compiled with a drive link to the image.

Android 5.0 support on WaRP7?

bittobyto — Tue, 05 Dec 2017 18:52:30 GMT

I've read through the user manuals for the WaRP7 and found a section referencing 'Android Testing'. This part of the manual displays images of Android OS running off the WaRP7's LCD module (sold separately). It's stated on the product page for the board that an Android BSP is optional but I've only been able to find fragments of the BSP on the GitHub page. Does anyone know if this is finished and if so which repositories I can find them?

I haven't been able to get the LCD module to display anything as of late so any pointers on how one would get an image file (.img) of Android flashed onto the eMMC of this board I'd appreciate the assistance!

RE: Android 5.0 support on WaRP7?

texierp — Fri, 23 Feb 2018 21:52:31 GMT

Hi Everybody,

FYI, I am currently working for the Android support (in my spare time ).

I plan to release a stable image within 2-3 weeks, I hope! (some patches are needed: u-boot, kernel).

Otherwise, you have a minimal documentation provided by Element14 (https://github.com/WaRP7/WaRP7-User-Guide/blob/Android_Dev/07-Chapter/Android.adoc )

After that, I will publish a better documentation!

---

Pierre-Jean

RE: WaRP7 Displays

texierp — Fri, 23 Feb 2018 21:40:47 GMT

Hi,

The official LCD is now supported with the meta-warp7-distro (see https://github.com/WaRP7/meta-warp7-distro/blob/master/recipes-kernel/linux/linux-warp7/imx7s-warp/0001-WIP-add-LCD.patc… )

Feel free to contact me for more details

---

Pierre-Jean