Custom Device with XNET Create Timing Source (FlexRay Cycle) pulled down frequency of the whole veristand project.

[ChrisCong]

Pre: VeriStand 2020 R6 + PXIe-8881 + PXIe1095+PXIe-8517， flexray cycle = 5ms

We are simulating 80+ FlexRay messages with a special E2E algorithm. Configuring in VeriStand XNET cannot support this algorithm，so we wrote a custom device to calculate checksum and send FlexRay messages. 

But when we used a XNET Create Timing Source (FlexRay Cycle) ，frequency of the whole veristand project was pulled down to 200Hz.

[ZYOng]

Which Custom Device Types are you using?

To communicate with hardware, generally we use the Inline Hardware Interface with Async such that the hardware R/W is async and RT FIFO R/W is inline.