i.MX ProcessorsのトピックRe: Cannot directly use lvds to output

Cannot directly use lvds to output

js0929 — Fri, 01 Oct 2021 08:34:36 GMT

I run the source/vendor/nxp/mcu-sdk-auto/SDK_MEK-MIMX8QM/boards/mekmimx8qm/demo_apps/rear_view_camera/cm4_core1,

and I need to connect to LVDS pannel directly without the external convertor IT6263,

but when define APP_DISPLAY_EXTERNAL_CONVERTOR as 0, it will show build error
"error LDB only support external convertor".

And I check the code,

#if (DPU_EXAMPLE_DI == DPU_DI_LVDS) && (!APP_DISPLAY_EXTERNAL_CONVERTOR)
#error LDB only support external convertor
#endif

Do you have a solution to meet our expectation?

igorpadykov — Fri, 01 Oct 2021 11:13:33 GMT

Hi Joseph

one can look at functions LDB_Init(), LDB_InitChannel() in ldb driver

..drivers/fsl_ldb.c

Best regards
igor

js0929 — Mon, 04 Oct 2021 02:53:48 GMT

Hi igor,
Have you tried to use lvds display directly successfully?
Could you help to provide relevant example patches?

Best regards,
Joseph

js0929 — Wed, 06 Oct 2021 06:25:27 GMT

Do you have any further information ?

BR,
Joseph