From 891730d13b324fad916572a82f0bd610c5de9aad Mon Sep 17 00:00:00 2001 From: Rob Austein Date: Sun, 13 Sep 2020 23:06:24 +0000 Subject: Rename for conversion --- raw-wiki-dump/DevBridgeBoard | 40 ---------------------------------------- 1 file changed, 40 deletions(-) delete mode 100644 raw-wiki-dump/DevBridgeBoard (limited to 'raw-wiki-dump/DevBridgeBoard') diff --git a/raw-wiki-dump/DevBridgeBoard b/raw-wiki-dump/DevBridgeBoard deleted file mode 100644 index e601fda..0000000 --- a/raw-wiki-dump/DevBridgeBoard +++ /dev/null @@ -1,40 +0,0 @@ -[[PageOutline]] - -= dev-bridge board = -In the process of developing the [wiki:AlphaBoardComponents] design, the project has made what is known as the "dev-bridge board". - -This is a board, 100x70 mm, with about 2/3 of the components intended to be on the Alpha design. What is missing is basically the FPGA and it's supporting circuits. - -To date, the dev-bridge board has been used to implement and validate the FMC based interface that will be used to connect the ARM and the FPGA on the Alpha. - -Schematics and layouts are at [https://wiki.cryptech.is/browser/user/ft/stm32-dev-bridge/hardware/rev01 user/ft/stm32-dev-bridge/hardware/rev01]. - -High resolution pictures of rev01 of the dev-bridge board are attached at the bottom of this page, but the following should be more than sufficient to read the silkscreens. - -[[Image(dev-bridge_rev01_front_medium.jpg​)]] - -[[Image(dev-bridge_rev01_back_medium.jpg​)]] - -Here is the board mounted on the Novena, attached to the programmer: - -[[Image(IMG_9983s.jpg)]] - -Note that it's rather bigger than the Netgear enclosure I use to transport the Novena. (Not only does it protect the board, but I have this superstition that TSA is more comfortable with a home gateway than a bare motherboard.) - -Also note that the dev-bridge board is connected to the Novena by the -high-speed expansion connector, which forms a bit of a pivot point. -As Pavel says, "High speed and mechanical reliability are not very good -friends usually." - -For that reason, I highly recommend stabilizing the board by bolting it to -the Novena with a 5mm spacer. There are two through-holes that line up -with mounting holes on the Novena, one at the corner and one next to the -wifi connector. I've found that even one bolt is enough to stabilize the -board. - -Finally note that the board traces come rather close to the through-holes, so -you want to avoid scraping them with the bolt head or the nut. I happen to -be using a countersink-head bolt, which is beveled toward the shaft, but -it's probably even better to use a nylon washer. - -All the software, as well as flashing instructions, are at [wiki:GitRepositories/sw/stm32]. \ No newline at end of file -- cgit v1.2.3