F&S Support Forum

Thanks for the answer. @fs-support_CS

So it will be enough to disable lpi2c4 in the Linux device tree, and after the handshake in u-boot initialize the PTE(0,1) pins and run SGTL_Init() from fsl_sgtl5000 configured for control via lpi2c4, or will it be…

Dear fs-support_HK
I am currently working on a project involving the ArmostoneA9 platform with Buildroot fsimx6-B2024.04. I started from the qt5-defconfig configuration. Now I am trying to integrate a USB camera (model: IC-WHMA90) into the system, but I…

Rebuilding or reconfiguring the linux package will also trigger rsync again. So calling make linux-rebuild or make linux-reconfigure will also get your modified files updated in Builroot's local copy.

This is also true for other custom packages. Custom…

Hello Saturnion

I have checked the documents and circuit diagrams again.
Unfortunately, I have noticed that our HW documentation is incorrect here.

RTC and audio codec are connected via I2C_INT. (PTE0 & PTE1; lpi2c4).
I2C_D is not used on the SoM and is…

Hello.
I am using PicoCore™MX8ULP and trying to figure out how to control the sgtl5000 audio codec via I2C from the M33 core

According to the documentation, I need to use I2C_D, as I was told on the forum earlier, this is I3C0 with pins PTA(14,15)

When I…

Hello,
there actually is a functionality in the linux i2c driver that performs a similar operation:

https://github.com/FSEmbedded/…2c/busses/i2c-imx.c#L1004

To activate it, you have to add the GPIO muxes of your i2c pads to your device tree.

Could you try to…

Thanks for the answer.
Your materials helped me understand a little, but now when I try to read or write data to the codec registers I get kStatus_I3C_Nak in response, and it doesn't matter whether I try to access it at address 0x0A or at any other…

Hello again.
In last months I received two more PicoCOMA9X modules with this problematic behaviour and here are my observations and findings.

It seems to be the same problem as before, but it manifests itself a little differently - immediately after…

Rebuilding or reconfiguring the linux package will also trigger rsync again. So calling make linux-rebuild or make linux-reconfigure will also get your modified files updated in Builroot's local copy.

This is also true for other custom packages. Custom…

Hi Saturnion ,


The M33-FREERTOS has its own fsl_i3c driver for I3C. The driver has similar interfaces to the I2C driver.

We have already been able to implement I3C with I2C functionality. I would like to refer you to a section of code that we use in our…