sample_embedding_folder2/0734730.txt

Ticket Name: TDA2PXEVM: Synchronization time between A15 and MCU

Query Text:
Part Number: TDA2PXEVM Other Parts Discussed in Thread: TDA2 Hello, My name terence Xia from ECARX China. Our company is using the chip model of TDA2PXEVM. At present, there is a demand: the A15 use to collect video data and the MCU collects IMU data. How to synchronize the time of these two groups of data? I'm using vision SDK which released by TI. thanks.

Responses:
Hello If you use Vision SDK (SW development Kit) from TI, we insert a unique timestamp to each and every video frames while it getting captured. This information can be used for sync-up. For MCU side also you may need to do something similar to synchronize the time of these two groups of data regards., Shiju

Hi Shiju, I have a question about that, I'm using this function of OSA_getCurGlobalTimeInUsec to get the UTC time. When I get the time in A15, how can I send it to the external MCU, and synchronize MCU and TDA2 time. The MCU is external to TDA2,which use UART to connect with each other.

Hello I think, you need to use the SPI if its a data path with Video. UART is fine if its only ultrasonic data. I guess you might need some kind of Fusion and I do not know where it happen, but you need to pass this time stamp information to ECU or MCU, where this fusion logic runs regards, Shiju