Thursday, April 30, 2015

Rev C bring up

I built the first rev C of Titan earlier this week, and I've been working to bring up the board. This has been the cleanest build yet. It did take about five hours to build by hand, but my process is getting better with each build.

So far I've confirmed that all of the power rails are operational, the on-board USB programming circuit works, and the FPGA can be programmed. The LED counter didn't run when I loaded titan_wiggle, so I'll need to debug a little tonight.

Figure 1. First Rev C.

Tuesday, April 14, 2015

Tuesday, April 7, 2015

Rev C ordered!

Rev C of titan has been released on github, and I ordered the PCB prototypes tonight.

I'm working on an inventory of the components that I have before I order new parts for the build. Thanks to Kevin for a quick review of the PCB.

Figure 1. Rev C of Titan

Saturday, April 4, 2015

A different build

Today a helped a friend, Nick Huskinson, build a PCB board for his senior design project. The board implements a quad ADC using the Linear Tech LTC2170. Since Titan isn't ready yet, Nick designed this board for the Lattice ECP5 development card. Hopefully rev B will have an interface for Titan.

Figure 1. Nick's ADC Board (Ready for Relow).

Figure 2. Nick's ADC Board (After Reflow).