PROCESSOR-SDK-AM62P: About QNX map DSS shared memory in 0X93500000

Pu Jia

Tool/software:

Hello Team

I'm working on Start DSS sharing in QNX.

For the QNX side cannot provide the graphic driver to LVDS. I have an idea that using DSS sharing to driver the LVDS. If it possible?

A53 core write frames to 0X93500000 and call IPC WKUP R5,

WKUP R5 received IPC do Dequeue & queue the frame.

If it possible?

One more question about the DSS Framebuffer is protected or not? If yes, how to let QNX to write this area?

+1 Sunil Kumar M S 3 months ago

Hi Pu Jia,

As DSS driver is owned by QNX, Have you tried reaching them directly? May I know the release version you are using?

BR,

Sunil M S

0 Pu Jia 3 months ago in reply to Sunil Kumar M S

Hello Team

I use QNX function to do this, the RAM area is accessible by A53.. THanks

mmap_device_memory

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