One-shot triggers

Instead of having one-shot triggers to extend pulses for the LEDs, we could drive directly the LEDs from FPGA outputs.

On sch-v2 there was the option to:

• either tap on the CYC_I and FD_CDN_5V from the PCB and use one-shot triggers to extend them to become visible in the LEDs,
• or to drive directly the LEDs from the FPGA IIRC at the time of v2 we did not want to touch the FPGA code (by driving the FPGA_LED_WB and FPGA_LED_FB to be the extended versions of the CYC_I and FD_CDN_5V), and we were making use of the one-shot triggers.

On the sch-v3, the one-shot triggers are the only option to drive the LEDs.

Now though that we will anyhow open the FPGA design, I think we could have gone for the direct FPGA outputs and get rid of all the one-shot triggers circuitry; like this we simplify the BOM and the components that need to be tested under radiation.