Mity CPU Platforms

04/08/2020

JC 08:27 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Srinivasa Wunnimani wrote:
> Hi,
> ...
What is your boot config for SD card boot and NAND boot? It would be the pull-up and pull-downs on the LCD_DATA0-11 pins. Jonathan Cormier

JC 07:40 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Srinivasa Wunnimani wrote:
> I want to test the same with pre-built binaries for u-boot V2018.01.
> ...
Hmm just checked an looks like we haven't released the 2019 MDK which has u-boot 2018 yet. So we don't have any prebuilt binaries ... Jonathan Cormier

SW 03:04 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Hi,
I understand your point.
Please find the log attached for SD boot and NAND boot attached.
I am trying to explain with respect to line numbers in log file "u-boot_debug_with_SD_boot_and_NAND_boot.txt"
Line 1 to 97 is SD Boot... Srinivasa Wunnimani

JC 01:06 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

huh is your sd card MLO and u-boot.img the same one you are programming into nand? Jonathan Cormier

04/07/2020

SW 03:33 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Is boot from nand a requirement to reproduce this?
> Yes. GPIO 0_27 (Relay chattering) happens only during NAND boot or any NAND operations.
I would expect it to behave the same when booted from SD card and reading from the NAND u... Srinivasa Wunnimani

04/06/2020

JC 07:58 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Thanks for the instructions to reproduce the problem. That is helpful.
Unfortunately though with the current virus going around, I don't have access to an oscilloscope to check the gpio pin for noise.
Question:
Is boot from na... Jonathan Cormier

03/31/2020

SW 12:16 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Hi,
We have SOM board as per below link:
https://static6.arrow.com/aropdfconversion/bd95376e672d11c623e62dac62cb587c9bb1bc34/mitysom-335x-criticallink.pdf
If you have any evaluation board for the above mentioned SOM board, pleas... Srinivasa Wunnimani

03/30/2020

JC 05:46 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Srinivasa Wunnimani wrote:
> *> Now my suspect is on below registers*
> ...
In order to find these registers, all I do is run "grep -iR " with the string I'm looking for in the u-boot source directory. Sometimes may need to poke aroun... Jonathan Cormier

JC 05:41 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Srinivasa Wunnimani wrote:
> Hi,
> ...
Okay looks like the pinmux's match
Jonathan Cormier

03/28/2020

SW 02:01 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Forget to attach log files.
Please find log files attached.
Regards
Srinivasa Srinivasa Wunnimani

SW 02:00 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Hi
> If things are crashing now, then this was probably not the correct change.
I have started debugging into gpmc_init() in u-boot 2013.10 Vs u-boot 2018.01.
Old u-boot 2013.10 in file “arch/arm/cpu/armv7/am33xx/mem.c” Srinivasa Wunnimani

SW 01:12 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Hi,
I am little confused on sysconfig pin mux registers. Did you mean control module registers?
Anyways, I have captured control module register values for v2013.10 to our new u-boot v2018.01.
Please find logs attached.
Regards
... Srinivasa Wunnimani

03/27/2020

JC 01:25 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

> To make sure pinmux is okay, copied board/cl/mityarm335x/mux.c from v2013.10 to our new u-boot v2018.01. Please find mux.c attached.
I was hoping to have you dump the sysconfig pin mux registers for the 2013 and 2019 u-boots to make... Jonathan Cormier

SW 07:55 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Hi,
If things are crashing now, then this was probably not the correct change. If you double check the config7 register, did this change set it to the value we expect from v2013.10?
> In the entire u-boot the only C file (arch/arm/... Srinivasa Wunnimani

03/25/2020

JC 01:09 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Srinivasa Wunnimani wrote:
> Hi,
> ...
If things are crashing now, then this was probably not the correct change. If you double check the config7 register, did this change set it to the value we expect from v2013.10?
> Sure, we wil... Jonathan Cormier

SW 09:09 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: GPIO toggling/chattering while performing NAND read.

Hi,
I have updated arch/arm/mach-omap2/mem-common.c as below:
132 #if defined(CONFIG_NAND) || defined(CONFIG_CMD_NAND)
133 case MTD_DEV_TYPE_NAND:
134 gpmc_regs = gpmc_regs_nand;
135 base ... Srinivasa Wunnimani

EH 12:47 AM MitySOM-5CSX Embedded Vision Developer's Kit for Basler dart BCON Support: RE: Intel OpenVINO with the VDK

Thanks Mike,
That confirms what I've been thinking about it also, so that is the approach I'll take -- merge the two projects into a VDK BSP.
Thanks, and please stay safe out there in NYC..
Ed Henderson

MW 12:12 AM MitySOM-5CSX Embedded Vision Developer's Kit for Basler dart BCON Support: RE: Intel OpenVINO with the VDK

The FPGA code for the VDK is on github here:
https://github.com/CriticalLink/mitysom5csx-dart-evdk/tree/master/fpga
You want the vdk_single if you are using just one camera interface.
The board_spec.xml is part of an OpenCL BSP,... Michael Williamson

EH 12:00 AM MitySOM-5CSX Embedded Vision Developer's Kit for Basler dart BCON Support: RE: Intel OpenVINO with the VDK

I was looking for the one that is for the current VDK, so it would just have the ARM code.
I do have the code from the VDK files on the wiki. There isn't a 'BSP' there, but there are several versions of the FPGA code.
I guess I was loo... Ed Henderson

03/24/2020

MW 11:54 PM MitySOM-5CSX Embedded Vision Developer's Kit for Basler dart BCON Support: RE: Intel OpenVINO with the VDK

Hi Ed,
If you are looking for an FPGA project / BSP with VDK + OpenCL architected, I don't have one handy. I only have the reference FPGA project that works with the example ARM programs.
If you need that FPGA project, it should b... Michael Williamson

EH 11:25 PM MitySOM-5CSX Embedded Vision Developer's Kit for Basler dart BCON Support: RE: Intel OpenVINO with the VDK

Mike -- I have several examples of Cyclone V BSP's that incorporate an OpenCL kernel. It would be *VERY* helpful to have a starting "BSP" for the VDK, because then I can use the other examples as a reference and add the OpenCL kernel int... Ed Henderson

EH 03:04 PM MitySOM-5CSX Embedded Vision Developer's Kit for Basler dart BCON Support: RE: Intel OpenVINO with the VDK

Hey Mike, i've been reading manuals for the past few days, and learned quite a lot.
I see now how the BSP and Kernel fit together -- the BSP can contain a partition where the OpenCL Kernel is inserted.
The BSP can contain all of the co... Ed Henderson

DV 06:47 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Rocko, possible memory leak?

VJ,
I agree after looking at your data and with the knowledge that I've run 5CSX SOMs for weeks plugged into the network without having them dead locking.
It looks like the kernel uses a fair amount of memory for ethernet, though i... Daniel Vincelette

VJ 03:25 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Rocko, possible memory leak?

Dan, based upon the measurements I have done and input from Mike I think I have to write this off as normal behavior.
I have done some stress test where I stream data over Ethernet and the memory use does not increase uncontrolled.
BR
VJ V J

03/23/2020

MW 11:23 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Rocko, possible memory leak?

Hello Dan/VJ,
Have you guys seen this stack overflow post about tracking socket buffers /
memory moving through the network stacks?
https://unix.stackexchange.com/questions/419518/how-to-tell-how-much-memory-tcp-buffers-are-actually-us... Michael Williamson

VJ 10:56 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Rocko, possible memory leak?

Hi Dan.
I have monitored the memory use over the weekend. See attached plot where "free" is logged every 10 minutes.
Test steps:
1: Booting the board. Ethernet cables are connected to Eth0 and Eth1, but no dedicated traffic or connec... V J