FaradayRF / FaradayRF-Hardware

Faraday hardware design files

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First Batch Rev D1 Build #47

Open kb1lqc opened 7 years ago

kb1lqc commented 7 years ago

First Batch Boards

We've already brought up the first of twelve boards on #46 so here are the next 11! Order of building these units will be the same as the first being SMA connector, GPS, and finally Power/MOSFET connectors. None of them will initially get a JTAG connector but they may eventually. Finally I will use prebuilt binaries to update the firmware of the CC430 via USB.

kb1lqc commented 7 years ago

Just finised placing and soldering all 11 SMA connectors with hand-placed solder paste and reflow. This took about 54 minutes so 4.9 minutes per board.

kb1lqc commented 7 years ago

I'll make a second Issue Ticket and post images but 2/11 boards have some poor solders on U1, the CC430F6137. It appears there was too much solder and some pads balled up or flowed between each other. Good to note so any manufacturing tweeks can be made to prevent this!

[ ] Create Issue Ticket with images for U1 solder quality

kb1lqc commented 7 years ago

Installing five GPS units took 30 minutes with a littler rework after reflow. This turned out to be about 6 minutes per board. Largely due to too much solderpaste resulting in the need to remove solder from most of the 28 pins per GPS which was time consuming.

kb1lqc commented 7 years ago

Installing 22 power/mosfet connectors on 11 boards took 15 minutes. This equates to 41 seconds per connector or 1:21 per board.

kb1lqc commented 7 years ago

Cleaning boards after soldering took about 20 minutes for 11 boards which equals about 1:50 per board.

kb1lqc commented 7 years ago

Plugged first unit in, SN2, and it appears as COM11. Reprogrammed with FTDI PRog and it's now COM12.

Needed to program with FT-PROG

Set max power to 500mA
Set CBUS configuration to all GPIO

Programmed firmware on via python autouploader and LED's appear to boot on fine.

kb1lqc commented 7 years ago

Took roughly 35 minutes to program 11 units with the autoupdater script and FT-PROG

kb1lqc commented 7 years ago

SN 8 just got a GPS lock, SN 11 also connected after being left for a while turned on.

kb1lqc commented 7 years ago

While I haven't extensively tested these I think it's safe to say that for the most part they appear to work.