-----Original Message-----
From: Cufi, Carles
Sent: 18 February 2021 11:20
To: devel@...; tsc@...;
users@...
Cc: Brett Preston <bpreston@...>
Subject: LTS schedule and scope meeting on Tuesday, 23rd February

Hi all,

As you probably know, on Tuesdays we have two regularly scheduled
meetings:

- API meeting (17:00 UTC)
- Bug triage and Release Readiness meeting (18:00 UTC)

This week however, we will hold a special one-off meeting to discuss the
schedule and scope of the next LTS release.
The meeting will be open to everyone and will last two hours.

When: Tuesday, 23rd February, 17:00 UTC (18:00 CET, 12PM EST, 11AM CST,
9AM PST)
Where: https://teams.microsoft.com/l/meetup-
join/19%3ameeting_NWU2MjZlYWEtZDcwMi00MWQzLTgwMjEtNDdkYjQwMjBjMmFj%40threa
d.v2/0?context=%7b%22Tid%22%3a%22af0096d9-700c-411a-b795-
b3dd7122bad2%22%2c%22Oid%22%3a%22841a7c92-7816-4faf-9887-
5e334e88f6d8%22%7d

Thanks,

Carles

-----Original Message-----
From: Kumar Gala <kumar.gala@...>
Sent: vendredi 26 février 2021 17:27
To: Michael Graichen <michael.graichen@...>
Cc: users@...; Arnaud POULIQUEN
<arnaud.pouliquen@...>
Subject: Re: [Zephyr-users] Using the Cortex M4 on IMX7D

On Feb 26, 2021, at 3:43 AM, Michael Graichen

<michael.graichen@...> wrote:

Hey,

I have just started working on a IMX7D
(https://www.kontron.de/products/boards-and-standard-form-

factors/smarc/smarc-samx7.html) together with Zephyr I noticed that the
Colibri iMX7 Board has support for the Cortex M4.

So I've build an example by using:

cmake -GNinja -DBOARD=colibri_imx7d_m4 ../samples/basic/blinky

and tried to load that on the Cortex M4

echo -n zephyr.elf > /sys/class/remoteproc/remoteproc0/firmware
and
echo -n start > /sys/class/remoteproc/remoteproc0/state

Unfortunatly the start fails because the elf-file has no resource table.
I can select TOP ---> Additional libraries ---> [*] coprocessor
resource table within menuconfig but the resulting elf-file is still missing the

resource table.

What am i missing? How can a add a resource table to the elf-file?

best regards
Michael

I don’t believe the remoteproc loading was ever supported for the imx family
with zephyr. This is something you’d need to add support for. I think it might
be supported on the STM32 MP1 as an example. (I added Arnaud on CC as he
added the STM32 MP1 support).

For the i.mx I think you can load via u-boot and there’s a section in the zephyr
board docs here about it:

https://docs.zephyrproject.org/latest/boards/arm/colibri_imx7d_m4/doc/index.
html

- k

Hi!

I might have missed something, but is there a way to set a default openocd.conf in the local application directory, or set some other file as the default? The board-specific ones are not necessarily correct. I even wonder if the debug settings are board specific, rather than user-specific?
Actually I personally would consider it nice to just use my general configuration when selecting probe and such.

Cheers,
— Gunnar Brading

First it depends what you intend to do with LPTIM.

There is a LPTIM driver which is meant to be used as a low power kernel ticker 

instead of the Cortex systick.

You can enable it in any sample using CONFIG_STM32_LPTIM_TIMER=y

By default it will use LSE as clock source.

On Tue, 16 Feb 2021 at 16:25, Raz <raziebe@...> wrote:

I tried to compile LPTIM in the kernel but Zephyr fails. 

Is there an example for LPTIM in an app ?

On Tue, Feb 16, 2021 at 12:30 PM Erwan Gouriou <erwan.gouriou@...> wrote:

Hi Raz,

Did you checked that the clocks are correctly enabled?

In any case, I'd suggest to minimize the use of Cube functions to the timer related functions.

Zephyr provides most of things you need for MSP and board init.

Cheers

Erwan

On Fri, 12 Feb 2021 at 14:59, Raz <raziebe@...> wrote:

hello.

I am trying to use the LPTIM for the nucleos 476  by integrating it from CUBE. I ported the code below to Zephyr:

 HAL_Init();

  SystemClock_Config();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_LPTIM1_Init();
  for (;i<2;i++) {
 HAL_GPIO_TogglePin (GPIOA, GPIO_PIN_5);
 HAL_Delay(1000);
  }
  /*
   * LSE Input freq is 32768 hz.
   *  32768/64 = 512hz
   * */
  int secs = 3;
  if (HAL_LPTIM_Counter_Start_IT(&hlptim1, 512* secs + 1) != HAL_OK) {
     Error_Handler();
  }
  HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
  while (1)
  {
 HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
  }
  /* USER C

However, the timer does not start. Anyone is familiar with this problem ?

Kind regards