Ananth

I'm using the c-RIO 9004 with the 9014 chassis and LabVIEW 8.6. I need to read and log 13 PWM inputs. I've thought about multiplexing the PWM inputs like http://zone.ni.com/devzone/cda/tut/p/id/3254. But the problem with multiplexing the PWM is that I won't have all the data from the 13 inputs at the same instant which I need. So I've decided to have 13 loops on the FPGA each of which wait for a rising edge and then a falling edge and write the Ton time into an indicator. There is another 14th loop which reads from these 13 indicators using a local variable and writes into a DMA FIFO. RT reads from the FIFO and writes into a TDMS file. Is this the best way to do this? Am I unnecessarily taxing the FPGA? The PWM inputs are all from an infrared temperature sensor which I'm using to measure tyre temperature, which is why they need to be logged at the same instant. Thanks Ananth