Hi,
Good day.
Customer met some difficulties, please help to solve it.When customer was debugging the LDC module in VPAC, it encountered the problem of the program stuck when used the backmapping function in the LDC module.
1.When the mesh_image is assigned to null or all the same value, the program works well.
2.When using mesh_image for perspective transformation and its affine transformation, the program is stuck，I looked at the source code of TiOpenXV and found that LDC did not return the USER_CALLBACK signal to MCU2-0, causing Graph deadlock.
3.In different environments, such as with McU1-0 configured, the same mesh_img pass will work fine, but it will not work properly on power after an overnight power outage
Customer have a few questions about the above phenomenon, please help me，
1.Similar to vpac or dmpac these hardware accelerators, when not feedback the ipc signal again, if that the accelerator work abnormal, how can we locate the problem, for example, error code or relevant documents or source code can help us understand the working mechanisms of LDC vpac?
2.Is it only necessary to configure MCU2-0 to use VPAC, and if so, why would configuration changes in other cores affect VPAC?
3.When we update the firmware for mcu, do we need to update other firmware such as dsp that has not been changed together? If so, what is the reason?
Have a nice day.
