diff options
| author | Rob Austein <sra@hactrn.net> | 2021-10-08 00:30:08 -0400 |
|---|---|---|
| committer | Rob Austein <sra@hactrn.net> | 2021-10-08 00:30:08 -0400 |
| commit | 71487660812754e5f26f26595b6c3d456f9f6db8 (patch) | |
| tree | e960190262edcbb0164edbac1e52915c5a339442 /pelican/content/DevBridgeBoard.md | |
| parent | b11298b250f63daf091591d1638608325f766d9a (diff) | |
Get rid of conversion stuff, just build content -> website
Diffstat (limited to 'pelican/content/DevBridgeBoard.md')
| -rw-r--r-- | pelican/content/DevBridgeBoard.md | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/pelican/content/DevBridgeBoard.md b/pelican/content/DevBridgeBoard.md deleted file mode 100644 index a9310c9..0000000 --- a/pelican/content/DevBridgeBoard.md +++ /dev/null @@ -1,45 +0,0 @@ -Title: DevBridgeBoard -Author: sra -Date: 2016-12-15 22:43 -Modified: 2021-02-14 17:30 - - - -# dev-bridge board -In the process of developing the [AlphaBoardComponents]({filename}AlphaBoardComponents.md) 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 [user/ft/stm32-dev-bridge/hardware/rev01](https://wiki.cryptech.is/browser/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. - - - - - -Here is the board mounted on the Novena, attached to the programmer: - - - -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 [sw/stm32](https://git.cryptech.is/sw/stm32.md). |