i.MX ProcessorsのトピックRe: iMX8M Mini Windows 10 IoT with LCD panel display

iMX8M Mini Windows 10 IoT with LCD panel display

eddyfu — Tue, 03 Dec 2019 02:34:06 GMT

Hi everyone,

We are working on a customize board which is using iMX8M Mini processor. We are using the BSP download from NXP website (W1860_1_0_1_IMX-IOTCORE-B191011 and W1860_1_0_1_IMX-FIRMWARE-B191011) and following the instruction in the "i.MX Windows 10 IoT User’s Guide" to add our customize board. It can boot to UEFI.

Our problem is we need to add the mipi-dsi to LVDS processor (SN65DSI84) driver in the BSP. By analysis the display driver code, the default mipi-dsi to hdmi (adv7535) code and the OLED (rm67191) code, we can only find the driver related code in u-boot. Do it means we only need to add the mipi-dsi to LVDS processor (SN65DSI84) driver code in u-boot not UEFI or Windows 10 IoT?

Could anyone share the method to add the mipi-dsi to LVDS processor (SN65DSI84) driver code in Windows 10 IoT ?

Thank you

Best Regards,

Eddy(T)

Re: iMX8M Mini Windows 10 IoT with LCD panel display

Bio_TICFSL — Tue, 03 Dec 2019 15:18:19 GMT

Hello Eddy,

Win10 IoT doesn´t have the driver for MIPI DSI, you need to develop or contact microsoft.

Regards

Re: iMX8M Mini Windows 10 IoT with LCD panel display

eddyfu — Wed, 04 Dec 2019 01:21:44 GMT

Hi Bio_TICFSL,

Thanks for your reply.

Further question, how does the default HDMI works? There are some adv7535 registry setting in u-boot (board\freescale\imx8mm_evk\imx8mm_evk.c), but not in UEFI and Windows 10 IoT.

Does the binary file (signed_hdmi_imx8m.bin) contains the HDMI driver?

Thank you

Re: iMX8M Mini Windows 10 IoT with LCD panel display

jesselin0420 — Thu, 20 Jul 2023 06:12:16 GMT

Hi Experts,

We are using mipi dsi panel ili9881c on i.mx8 mini with Windows iot 10. We can see a splash screen after modifying the code of u-boot.
But after entering the windows iot the screen is black. How can we debug it?
The log in attached.

Re: iMX8M Mini Windows 10 IoT with LCD panel display

Frantisek_Prochaska — Thu, 10 Aug 2023 12:57:09 GMT

Hi @jesselin0420,
in that case you can disable Galcore driver and Windows will continue to use frame buffer that has been setup by U-Boot.