FIFO in hybrid mode

[WDD]

Hello, I am using compactRIO-9022 to do a project and trying to use scan mode and FPGA simultaneously ( Hybrid mode).

Scan mode needs two FIFOs and only one left. In my host VI, I need to do both read and write work with it, so I need to use two FIFOs, one is target to host DMA, while the other is host to target DMA. How to solve this problem?

Thanks for help.

[James_McN]

Hi WDD,

Im afraid there is no way around this, it is one of the limitations of hybrid mode.  If one of the FIFOs aren't too fast you can set up some sort of handshaking between the RT and FPGA to transfer data without the FIFO.  Otherwise you may need to use FPGA only mode and then you can prioritise and make the scan engine functions more efficient.

Regards