VPAC和DMPAC和C6X/C7X如何同时使用?使用流程是什么样的,是否能举一个功能实例介绍一下这几个单元都使用时的流程图,谢谢!
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C6x/C7x不支持访问VPAC和DMPAC,只有R5F (MCU)支持VPAC和DMPAC。请看下面的帖子。
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/922752/tda4vm-query-for-the-relation-between-mcu-mpu-and-vpac-dmpac
从TDA4VM 手册中,有这样的内容:The VPAC works as front end to vision processing and prepares frame/scales for further processing by other vision accelerators or processor
cores in the SoC. 如果说VPAC和DMPAC只能R5核访问的话,那么是不是camera输入后的视觉处理及控制都要R5核来做?那么ADAS功能的camera image perception没办法在A72核做了?也就是ADAS的视觉相关处理都在R5核来做了?如何更A72核衔接呢?A72核和R5核如何分工合作?谢谢!
看到您的问题已经升级到英文e2e了,请等待e2e工程师的回复。
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1107077/tda4vm-vpac-dmpac-and-c6x-c7x-using-issue
e2e工程师有回复,请看下面的回答。
Please find below answers to your questions.
1) If VPAC and DMPAC are only accessible by the R5 core, does the vision processing and control of the camera input both require R5 core processing, and does the camera image perception of the ADAS function not work with the A72 core? That is, ADAS's vision-related processing is at the R
Yes, R5F core is must, VPAC and DMPAC are controlled/accessible only on R5F.
2) How to interface with the A72 core? How does the A72 core and R5 core work together?
Are you using OpenVX framework? Because all this is taken care by the OpenVX framework. In OpenVX, graph runs on the A72 and Graph on A72 invokes the VPAC node on R5F whenever required, using IPC.