About ShawnHymel

ShawnHymel · 2021-10-07

I have attached an Adafruit LCD (https://www.adafruit.com/product/1770) to my STM32MP157D-DK1 on SPI5 (on the RPi header). I am working with Yocto and the STM32MP1 BSP (but not OpenSTLinux). I am attempting to modify core-image-minimal to enable the ...

ShawnHymel · 2021-09-06

I have an old Edimax EW-7811Un that I am trying to get working on the STM32MP157D-DK1. I have installed Yocto along with poky and the meta-st-stm32mp BSP layer. I do not want to use OpenSTLinux right now.I configured the kernel with bitbake -c menuco...

ShawnHymel · 2021-08-20

I have an STM32MP157D-DK1 board, and I'm trying to build a custom Linux image for it with the Yocto Project. I followed the guide here (https://forum.digikey.com/t/yocto-getting-started-with-the-stm32mp157/14074) to create a core-image-minimal.I’m tr...

ShawnHymel · 2019-08-10

I'm using STM32CubeIDE and created a project for the Nucleo-L476RG with FreeRTOS selected. I switched the Timebase Source to TIM6 to allow FreeRTOS to have SysTick. I created 2 tasks and 1 queue (for the default 16x queue size of uint16_t). Here are ...

ShawnHymel · 2021-10-11

Hi @Kevin HUBER ,Thank you for the reply! I'm working on a video series that shows people how to create a custom Linux image by slowly adding features/modules to core-image-minimal (rather than starting with a large, pre-built image like Weston). Be...

ShawnHymel · 2021-10-08

@Kevin HUBER Good catch, thank you! I changed the dts node to the following and re-built my image:&spi5 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&spi5_pins_a>; pinctrl-1 = <&spi5_sleep_pins_a>; cs-gpios = <&gpiof 6 GPIO_ACTIVE_HIGH>; ...

ShawnHymel · 2021-08-27

I was able to get it to boot. The following line was the clue:[ 3.220995] Waiting for root device PARTUUID=e91c4e10-16e6-4c0e-bd0e-77becf4a3582...Apparently, U-Boot was unable to find the rootfs, so it just stalls. To fix this, you need to do one of ...

ShawnHymel · 2021-08-23

Thank you for the help!I renamed the /dev/mmcblk2p3 partition to "fip," as that's apparently how the first stage bootloader knows to find it, and I left /dev/mmcblk2p4 marked as "Legacy BIOS bootable."I then copied over the following images to the pa...

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Cannot get SPI LCD working with STM32MP157D-DK1 (Yocto)

How to compile kernel in Yocto to contain rtl8192cu driver?

STM32MP1 U-Boot freezes while "Starting Kernel" (stalls on "Waiting for root device" in earlyprink)

Help with Queues in FreeRTOS (CMSIS-RTOS v2)--running into a weird memory issue

Re: Cannot get SPI LCD working with STM32MP157D-DK1 (Yocto)

Re: Cannot get SPI LCD working with STM32MP157D-DK1 (Yocto)

Re: STM32MP1 U-Boot freezes while "Starting Kernel" (stalls on "Waiting for root device" in earlyprink)

Re: STM32MP1 U-Boot freezes while "Starting Kernel" (stalls on "Waiting for root device" in earlyprink)